Hi,

i wanted to add a WD Blue 6TB to my two WD Red Plus (1 Parity, 1 Array) but i always get the message in the title. 

 

I've also read that HPA might be the problem, but the new drive has this output:

Quote

/dev/sdc:

SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 04 51 40 00 21 04 00 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 04 51 40 01 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

max sectors   = 11721045168/1(1?), HPA setting seems invalid (buggy kernel device driver?)

 

The parity:

 

Quote

dev/sde:

max sectors   = 11721045168/11721045168, HPA is disabled

 

Any ideas - i also wrote the WD Support already.

Thanks a lot! 

diagnostics and a brief description of the hardware involved (controller, enclosures, etc) would be helpful.

Up till now i had two 6 TB WD Red Plus (1 parity, 1 array), 1 500 MX SSD as cache and wanted to add the spare 6 TB WD Blue HDD to the array. 

Right now, my system is on 6.11.0-rc3. 

 

Thanks a lot!

thonas-diagnostics-20220824-1427.zip

Mostly likely parity has the partition starting on sector 2048, please post output of:

 

fdisk -l /dev/sdb

 

It seems like you are right:

 

Disk /dev/sdb: 5.46 TiB, 6001175126016 bytes, 11721045168 sectors
Disk model: WDC WD60EFRX-68L
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 0AEAFFC8-E5D1-443E-9BA9-D02A3F6D44EB

Device     Start         End     Sectors  Size Type
/dev/sdb1   2048 11721045134 11721043087  5.5T Linux filesystem

 

Do you know how to change that?

 

Thanks a lot!!

Starting some time ago Unraid uses sector 2048 for flash devices, and from that time if a device, disk or SSD, has a partition starting on sector 2048 it will use, it should create a new one for disks, solution it to wipe the disk/delete the partition and re-sync parity, once it's done you can add the new data disk.

The existing data drive also starts at 2048 - so i wipe the parity disk and then resync? 

 

1 minute ago, Aldamir said:

The existing data drive also starts at 2048

That's fine, no need to change that one, problem is only with parity.

How do i wipe the parity in a way i starts with the first sector? 

Thanks a lot!

Easiest way is to remove the partition with the UD plugin, click on the red x, disk must be unassigned and array started without it first.

Thanks for the help! Let's see if this was the solution