Preclear plugin

Kosti · December 21, 2021

Hey,

So new unraid box, all new, and ran in to issues with pre-clear, after some trouble shooting isolated the issue to possible ram, as ran a few memtest and one of the 16GB pairs failed the test

Now server is running 32GB instead of 64GB while I RMA the suspect 32GB Kit, since the pre-clear failed, when I try to run again it details a previous PRCLR, should I resume it or start fresh clear and skip pre read?

Thanks

preclear_disk_3551483156325046_21811.txt

eubbenhadd · December 27, 2021

On 12/6/2021 at 5:29 AM, rajk said:

Unraid version: 6.9.2

Hi all

I have an unraid server that consists of the following:

Motherboard: Asus P5Q Premium

CPU : Intel Core 2 Duo E7400

Memory 2GB

Parity Disk: Seagate Ironwolf Pro 4TB

Disk 1: Seagate Ironwolf Pro 4TB

Cache Drive: Crucial MX500 1TB

I just purchased an additional WD Red Pro 4TB drive. I installed it into a spare slot in my rack and started the pre clear plugin and selected the gfjdarmim 1.0.22 script. I just went for all other default options and started the script. I get the following error ;error encountered, please verify log' . In the preclear log (see below), It says something about low memory. I know i only have 2GB but is this really a problem for pre clear to work? If it is, is there anyway to reduce the meomry load?

Here is the preclear log, any guidance would be appreciated!

Dec 06 13:23:38 preclear_disk_VBH0L3ZF_10889: Command: /usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh --cycles 1 --no-prompt /dev/sdf
Dec 06 13:23:38 preclear_disk_VBH0L3ZF_10889: Preclear Disk Version: 1.0.22
Dec 06 13:23:38 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T. info type: default
Dec 06 13:23:38 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T. attrs type: default
Dec 06 13:23:38 preclear_disk_VBH0L3ZF_10889: Disk size: 4000787030016
Dec 06 13:23:38 preclear_disk_VBH0L3ZF_10889: Disk blocks: 976754646
Dec 06 13:23:38 preclear_disk_VBH0L3ZF_10889: Blocks (512 bytes): 7814037168
Dec 06 13:23:38 preclear_disk_VBH0L3ZF_10889: Block size: 4096
Dec 06 13:23:38 preclear_disk_VBH0L3ZF_10889: Start sector: 0
Dec 06 13:23:41 preclear_disk_VBH0L3ZF_10889: Pre-read: pre-read verification started (1/5)....
Dec 06 13:23:41 preclear_disk_VBH0L3ZF_10889: Pre-Read: dd if=/dev/sdf of=/dev/null bs=2097152 skip=0 count=4000787030016 conv=noerror iflag=nocache,count_bytes,skip_bytes
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: size: 946212, available: 93896, free: 9%
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: Filesystem 1K-blocks Used Available Use% Mounted on
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: rootfs 946212 852316 93896 91% /
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: devtmpfs 946220 0 946220 0% /dev
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: tmpfs 1020916 0 1020916 0% /dev/shm
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: cgroup_root 8192 0 8192 0% /sys/fs/cgroup
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: tmpfs 131072 304 130768 1% /var/log
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: /dev/sda1 15000232 294664 14705568 2% /boot
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: overlay 946212 852316 93896 91% /lib/modules
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: overlay 946212 852316 93896 91% /lib/firmware
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: tmpfs 1024 0 1024 0% /mnt/disks
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: tmpfs 1024 0 1024 0% /mnt/remotes
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: Low memory detected, aborting...
Dec 06 13:23:44 preclear_disk_VBH0L3ZF_10889: Pre-read: pre-read verification failed!
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: Error:
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.:
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: ATTRIBUTE INITIAL NOW STATUS
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: Reallocated_Sector_Ct 0 0 -
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: Power_On_Hours 0 0 -
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: Temperature_Celsius 33 33 -
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: Reallocated_Event_Count 0 0 -
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: Current_Pending_Sector 0 0 -
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: Offline_Uncorrectable 0 0 -
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: UDMA_CRC_Error_Count 0 0 -
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: S.M.A.R.T.: SMART overall-health self-assessment test result: PASSED
Dec 06 13:23:46 preclear_disk_VBH0L3ZF_10889: error encountered, exiting...

Did this ever get resolved? I had the same error on two WD 14TB drives. Also on unRAID 6.9.2, plugin v2021.04.11

Edited December 27, 2021 by eubbenhadd

randomusername · December 31, 2021

Hi all,

I had a disk fail preclear with the following error:

/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
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/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
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/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
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/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
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/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
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/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 483: /tmp/.preclear/sdn/dd_output: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 476: /tmp/.preclear/sdn/dd_output_complete: No such file or directory
/usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh: line 481: /tmp/.preclear/sdn/dd_output_complete: No such file or directory

Log attached. I have no idea what any of this means, this is my first time using the plugin. If anyone can tell me what I'm doing wrong I'd be very grateful.

preclear_disk_ZCT0LFW1_29286.txt

Squid · December 31, 2021

You would also need to post your diagnostics to correlate what happened

Helmonder · January 12, 2022

Hi.

I am running a 16TB preclear at the moment (I did the exact same drive two weeks back, no issues).

Preclear has been running fine and I think it still is, but since it started the last POST READ (post read of second phase) the webinterface shows no status anymore, the blinking "preclear" is still there, but no "eye" icon ..

How can I check current status ?

It should be ready somewhere tomorrow so I will just wait, but wondering if there is a logfile underneath somewhere I can look at.. ?

dlandon · January 12, 2022

Can you show a screen shot?

Helmonder · January 12, 2022

Sure !

Its still running so I am not worried there:

Jan 12 16:39:16 Tower preclear_disk_91T0A1KDFVGG[606]: Post-Read: progress - 50% verified @ 217 MB/s

And this morning preclear was finished without an issue. Report was also placed in the preclear_reports folder.

Edited January 13, 2022 by Helmonder

enJOyIT · January 18, 2022

Hi,

I am the only one who has the same warranty infos for every disk?

What's wrong here?

Edited January 18, 2022 by enJOyIT

Hokie Saiko · January 19, 2022

Hey y'all,
I'm trying to set up a new server and decided to preclear my new shucked HDDs before making an array. Unfortunately, I wasn't really aware that the preclear would essentially stress test the drives so all four of them ended up overheating on the first night (no airflow). I also learned shortly afterwards that the RAM I had started on was faulty. Lastly, because of the RAM issues, the server was restarted multiple times during the process where the preclear successfully resumed when logged back in. Well, two of the preclears have fully finished now and it looks like the post-read verification failed on both.

  	

############################################################################################################################
#                                                                                                                          #
#                                         unRAID Server Preclear of disk 9MH496UK                                          #
#                                       Cycle 1 of 1, partition start on sector 64.                                        #
#                                                                                                                          #
#                                                                                                                          #
#   Step 1 of 4 - Zeroing the disk:                                                       [23:15:40 @ 167 MB/s] SUCCESS    #
#   Step 2 of 4 - Writing unRAID's Preclear signature:                                                          SUCCESS    #
#   Step 3 of 4 - Verifying unRAID's Preclear signature:                                                        SUCCESS    #
#   Step 4 of 4 - Post-Read verification:                                                                          FAIL    #
#                                                                                                                          #
#                                                                                                                          #
#                                                                                                                          #
#                                                                                                                          #
#                                                                                                                          #
#                                                                                                                          #
#                                                                                                                          #
#                                                                                                                          #
############################################################################################################################
#                              Cycle elapsed time: 36:38:14 | Total elapsed time: 36:38:14                                 #
############################################################################################################################


############################################################################################################################
#                                                                                                                          #
#                                        S.M.A.R.T. Status (device type: default)                                          #
#                                                                                                                          #
#                                                                                                                          #
#   ATTRIBUTE                INITIAL  STATUS                                                                               #
#   Reallocated_Sector_Ct    0        -                                                                                    #
#   Power_On_Hours           42       -                                                                                    #
#   Temperature_Celsius      27       -                                                                                    #
#   Reallocated_Event_Count  0        -                                                                                    #
#   Current_Pending_Sector   0        -                                                                                    #
#   Offline_Uncorrectable    0        -                                                                                    #
#   UDMA_CRC_Error_Count     0        -                                                                                    #
#                                                                                                                          #
#                                                                                                                          #
#                                                                                                                          #
#                                                                                                                          #
#                                                                                                                          #
############################################################################################################################
#   SMART overall-health self-assessment test result: PASSED                                                               #
############################################################################################################################

I take it my next steps should be to rerun the entire preclears on all four drives to hopefully get a pass. With airflow, new ram, and no restarts it should work out, eh?
Did the overheating for a night permanently damage the drives? Would a short/long smart test be more adequate at this point?

Thanks!

trurl · January 19, 2022

24 minutes ago, Hokie Saiko said:

RAM I had started on was faulty. Lastly, because of the RAM issues, the server was restarted multiple times during the process where the preclear successfully resumed when logged back in. Well, two of the preclears have fully finished now and it looks like the post-read verification failed on both.

Were these still using the bad RAM? Bad RAM often results in post-read failure. And of course, you shouldn't even be running a computer with bad RAM at all.

Hokie Saiko · January 19, 2022

1 minute ago, trurl said:

Were these still using the bad RAM? Bad RAM often results in post-read failure. And of course, you shouldn't even be running a computer with bad RAM at all.

The preclears started with the bad RAM, but I'm pretty sure the entire post-Read part was with the good RAM (multiple restarts and eventual hardware swap during zeroing).

Yea, just before this I was still running windows on what will end up as a cache drive -- that kept having all sorts of blue-screens which I thought were due to CPU drivers but it looks like the RAM was bad before I started delving into unRaid.

trurl · January 19, 2022

2 minutes ago, Hokie Saiko said:

The preclears started with the bad RAM, but I'm pretty sure the entire post-Read part was with the good RAM

Bad RAM could also cause writing zeros to be incorrect, which would result in post-read not getting zeros.

Anything done with bad RAM can't be trusted.

Hokie Saiko · January 19, 2022

3 minutes ago, trurl said:

Bad RAM could also cause writing zeros to be incorrect, which would result in post-read not getting zeros.

Anything done with bad RAM can't be trusted.

Fair enough, I suppose I'll be running another round of preclears then. If those pass I'll move onto smart tests to see if I should be worried about the 1 night of overheating - I'm mostly worried now on if I should cut my plans down from 3array/1parity drives to 2/2.

Thanks for the input.

trurl · January 19, 2022

18 minutes ago, Hokie Saiko said:

Fair enough, I suppose I'll be running another round of preclears then. If those pass I'll move onto smart tests to see if I should be worried about the 1 night of overheating - I'm mostly worried now on if I should cut my plans down from 3array/1parity drives to 2/2.

Thanks for the input.

Unraid only requires a clear disk when adding a disk to a new data slot in an array that already has valid parity. A clear disk is all zeros, so parity remains valid since those zeros have no effect on the parity result. When Unraid requires a clear disk (only in that one scenario), it will clear the disk before adding it to the array if it isn't already clear.

Preclear is really just for testing disks and to get them past "infant mortality". I personally don't bother with preclears. Sounds like your disks have already had a good workout. You might run an extended SMART test on each and if those pass you are probably OK.

And dual parity with so few data disks doesn't make much sense either.

You will have backups of anything important and irreplaceable anyway, right?

Hokie Saiko · January 19, 2022

57 minutes ago, trurl said:

Preclear is really just for testing disks and to get them past "infant mortality". I personally don't bother with preclears. Sounds like your disks have already had a good workout. You might run an extended SMART test on each and if those pass you are probably OK.

And dual parity with so few data disks doesn't make much sense either.

You will have backups of anything important and irreplaceable anyway, right?

Okay, doing the long smart test sounds like a quicker safety check, I'll go with that. Checking with another console commands help page, I believe that would just be:

smartctl  -a  -tlong  /dev/sdb  |  todos  >/boot/smartsdb.txt

Can I run these at the same time for all four drives? Will the results be readable in the terminal or should I expect to have to find each of the reports?

I'd rather not lose the third data drive to parity, but I believe I saw typical drives are only rated for 60 degrees C and when I saw the preclear in the first morning I saw the drives were sitting at 65, likely for hours. The data is just going to be media, so not necessarily important but I'd rather not lose it without being able to do a parity rebuild. If I ended up using all the space (tbh not sure how big of an if that is) my plan was to continue expanding later with an LSI SAS 4i card. So for now it'll certainly end up cutting a lot of storage, but maybe if the extended is spotless I'll go back to 3/1.

trurl · January 20, 2022

10 hours ago, Hokie Saiko said:

long smart test

Click on the disk to get to its page, disable spindown on the disk, click the button to run the extended test. You can do all the disks at the same time. Will take a while but not as long as preclear. The result is recorded by each disk and is available in its SMART report, but you should also see the result next to that button.

tommykmusic · January 20, 2022

I recently ran into an error which you can follow in the 🗄・unraid-os thread on DIscord. @OmgImAlexis from Discord helped me narrow it down to the "Pre Clear Disks" Plugin. The run down of the issue I had was that I ran into an "undefined system" I could not see my disks as well as trying to do anything but access and use terminal was not really working as it should. Example I tried to removed the "Pre Clear Disks" Plugin from the webgui and that did not work. I have now reboot and stopped the array and have removed the "Pre Clear Disks" Plugin. Will keep it removed and see if the error happens again.

When I had the issue my plugins tab was showing this above all the already installed plugins.

Warning: file_put_contents(): Only -1 of 59096 bytes written, possibly out of free disk space in /usr/local/emhttp/plugins/dynamix.plugin.manager/include/ShowPlugins.php on line 139

Warning: file_put_contents(): Only -1 of 729 bytes written, possibly out of free disk space in /usr/local/emhttp/plugins/dynamix.plugin.manager/include/ShowPlugins.php on line 139

Warning: file_put_contents(): Only -1 of 15365 bytes written, possibly out of free disk space in /usr/local/emhttp/plugins/dynamix.plugin.manager/include/ShowPlugins.php on line 139

Warning: file_put_contents(): Only -1 of 1069 bytes written, possibly out of free disk space in /usr/local/emhttp/plugins/dynamix.plugin.manager/include/ShowPlugins.php on line 139

Warning: file_put_contents(): Only -1 of 81264 bytes written, possibly out of free disk space in /usr/local/emhttp/plugins/dynamix.plugin.manager/include/ShowPlugins.php on line 139

Warning: file_put_contents(): Only -1 of 1037 bytes written, possibly out of free disk space in /usr/local/emhttp/plugins/dynamix.plugin.manager/include/ShowPlugins.php on line 139

Warning: file_put_contents(): Only -1 of 1540 bytes written, possibly out of free disk space in /usr/local/emhttp/plugins/dynamix.plugin.manager/include/ShowPlugins.php on line 139

cat /var/log/syslog however showed

PHP Warning: file_put_contents(): Only -1 of 2050 bytes written, possibly out of free disk space in /etc/rc.d/rc.diskinfo on line 499
PHP Warning: file_put_contents(): Only -1 of 2050 bytes written, possibly out of free disk space in /etc/rc.d/rc.diskinfo on line 266

it showed a lot more but could not fit all the code in discord, those are the only two "errors" that stood out.

trurl · January 20, 2022

10 hours ago, tommykmusic said:

he run down of the issue I had was that I ran into an "undefined system" I could not see my disks as well as trying to do anything but access and use terminal was not really working as it should.

Most likely you have filled rootfs, nothing really to do with preclear plugin.

And I see from your other thread that is exactly what your problem is. See my additional comments there.

The Unraid OS is in RAM, rootfs is the RAM space reserved for the OS. If you fill that all sorts of things won't work because the OS can't work with its own files anymore.

If you can get terminal to work, you can see this by using this command

df -h

and look for rootfs to see if it is full.

A common reason for filling rootfs is specifying a path that isn't actual storage, perhaps in a container host mapping. Most of the time these should be a subfolder of /mnt. /mnt/user are the user shares, /mnt/disk1 is disk1, etc.

Sometimes we will see this when a user specifies /mnt/cache when they don't really have a cache disk.

CobraPL · February 2, 2022

I have latest RC install, almost clean state. No other plugins (except IPMI). ECC Ram, platinum-grade 550W. I had unraid restart ~@2AM w/o reason, all logs lost. Clearing HGST/WD 18TB HDD was already past 24H.

I also have such thing in LOG:
root: error: /plugins/preclear.disk/logger.php: wrong csrf_token

Edited February 2, 2022 by CobraPL

jowy_ham · February 8, 2022

Tried to preclear my shucked 14TB WDC_WD140EDGZ, only managed to precleared once successfully.

Is the drive bad (twice failed at post-read verification) ? Attached are the logs

tower-smart-20220208-1934.zip tower-syslog-20220208-1142.zip

JorgeB · February 8, 2022

10 minutes ago, jowy_ham said:

Is the drive bad

The drive is not returning all zeros on post read as it should, run memtest, bad RAM can result in that issue.

trurl · February 8, 2022

On 2/2/2022 at 3:34 AM, CobraPL said:

wrong csrf_token

Bob@unraid · February 20, 2022

Hello everyone,

shucked a 12TB Seagate drive a couple days ago and ran the preclear script.

Unfortunately the post-read section ended with the following error

Feb 20 17:41:37 preclear_disk_20121104000078_16618: Post-Read: dd output: 4192493+0 records out
Feb 20 17:41:37 preclear_disk_20121104000078_16618: Post-Read: dd output: 8792295079936 bytes (8.8 TB, 8.0 TiB) copied, 39122.4 s, 225 MB/s
Feb 20 17:41:37 preclear_disk_20121104000078_16618: Post-Read: dd output: 4193831+0 records in
Feb 20 17:41:37 preclear_disk_20121104000078_16618: Post-Read: dd output: 4193830+0 records out
Feb 20 17:41:37 preclear_disk_20121104000078_16618: Post-Read: dd output: 8795098972160 bytes (8.8 TB, 8.0 TiB) copied, 39134.4 s, 225 MB/s
Feb 20 17:41:37 preclear_disk_20121104000078_16618: Post-Read: post-read verification failed!
Feb 20 17:41:38 preclear_disk_20121104000078_16618: error encountered, exiting..

Is it possible to run a seperated post-read again or is it possible to use the drive as paraity?

Thanks!

Econaut · February 23, 2022

What does 'Verify all the disk" do specifically? Is it good practice to run this after a clear?

Squid · March 5, 2022

Due to various continual issues with this plugin, it has now been marked as being incompatible with Unraid versions 6.9.0+

It is highly advised to uninstall this plugin (and Statistics Sender if installed) and switch to the Unassigned Devices Preclear plugin (or Binhex-Preclear if you prefer a command line interface)

Preclear plugin

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