Hello,

 

 I've recently made some changed to my server and now i'm not sure what I've done to create these errors. I started to get notifications on my cache drive so i replaced it a few weeks ago. Since then I've also swapped out a drive with errors. Now this is what i see..

any help would be appreciated...

 

Jan 12 20:06:01 Tower kernel: blk_update_request: I/O error, dev sr0, sector 131056
Jan 12 20:06:01 Tower kernel: Buffer I/O error on dev sr0, logical block 32764, async page read
Jan 12 20:06:01 Tower kernel: sr 0:0:0:1: [sr0] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x07 driverbyte=0x08
Jan 12 20:06:01 Tower kernel: sr 0:0:0:1: [sr0] tag#0 Sense Key : 0x4 [current] 
Jan 12 20:06:01 Tower kernel: sr 0:0:0:1: [sr0] tag#0 ASC=0x0 ASCQ=0x0 
Jan 12 20:06:01 Tower kernel: sr 0:0:0:1: [sr0] tag#0 CDB: opcode=0x28 28 00 00 00 7f fd 00 00 01 00

tower-diagnostics-20180112-1934.zip

Edited January 14, 20188 yr by jhnyswng

sr0 is a CD/DVD device, remove it if not needed or ignore.

 

Jan 12 15:58:23 Tower kernel: sr 0:0:0:1: [sr0] scsi3-mmc drive: 48x/48x tray
Jan 12 15:58:23 Tower kernel: cdrom: Uniform CD-ROM driver Revision: 3.20
Jan 12 15:58:23 Tower kernel: sr 0:0:0:1: Attached scsi CD-ROM sr0
Jan 12 15:58:23 Tower kernel: sr 0:0:0:1: Attached scsi generic sg1 type 5

 

I do not have a cd/dvd device attached

Well something is being detected as one.

i noticed in the smart log that my sandisk usb drive is being recognized. Any idea how this can happen?

 

smartctl 6.5 2016-05-07 r4318 [x86_64-linux-4.9.30-unRAID] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Vendor:               SanDisk
Product:              Cruzer
Revision:             7.01
User Capacity:        67,106,816 bytes [67.1 MB]
Logical block size:   2048 bytes
scsiModePageOffset: raw_curr too small, offset=258 resp_len=1 bd_len=254
Device type:          CD/DVD
Local Time is:        Fri Jan 12 19:34:55 2018 PST
SMART support is:     Available - device has SMART capability.
SMART support is:     Enabled
Temperature Warning:  Disabled or Not Supported

=== START OF READ SMART DATA SECTION ===
SMART Health Status: OK
Current Drive Temperature:     0 C
Drive Trip Temperature:        0 C

Error Counter logging not supported

Device does not support Self Test logging

https://en.wikipedia.org/wiki/U3_(software)

 

Some drives can be reset to just be mass storage, others can't. See if there is a utility available from Sandisk to remove the CD emulation.

This should be obvious, but make SURE you have a backup of the contents of the drive before you start messing around with it.

That worked. I had to make the usb bootable again to run. No idea why this popped up tho. I've been running this usb flash drive for about 2.5 years without that error

 

thanks for your help

5 minutes ago, jhnyswng said:

That worked.

Just to be clear for others that may come across this thread, what exactly did you end up doing that solved the issue?

 

Also, please edit your first post and change the title to something more specific, with the word [Solved] so if people search for the issue it's obvious how to fix it.

I did a search to remove the cd emulation for Sandisk and and found there is software preinstalled that needs to be removed. 

https://kb.sandisk.com/app/answers/detail/a_id/2550/~/removing%2Funinstalling-u3-launchpad-on-a-pc

I used Download U3 Removal Tool . This gave me an option to save all contents of the drive. After that i had to run the make bootable program to enable the flash drive again.