Problem: One of my system hard drives will not mount, and I see "no device" under its device slot. 

 

Question: What command(s) should I run to identify whether this is a minor issue that can be fixed with a resierfsck or its a complete drive failure?

 

Symptoms:

• On boot, the server makes a series of short beeps 10 or so times over 30 seconds
• The drive in question is /dev/sdc and is older (so reiserfs I think, but not sure)
• In syslog I see a series of repeated messages similar to this:

May 16 09:36:17 Tower kernel: ata2.00: status: { DRDY ERR }
May 16 09:36:17 Tower kernel: ata2.00: error: { ABRT }
May 16 09:36:17 Tower kernel: ata2.00: configured for UDMA/133 (device error ignored)
May 16 09:36:17 Tower kernel: ata2: EH complete
May 16 09:36:17 Tower kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
May 16 09:36:17 Tower kernel: ata2.00: irq_stat 0x40000001
May 16 09:36:17 Tower kernel: ata2.00: failed command: READ DMA
May 16 09:36:17 Tower kernel: ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 30 dma 4096 in
May 16 09:36:17 Tower kernel:         res 51/04:08:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)

• blkid output:

# blkid
/dev/sda1: LABEL="UNRAID" UUID="BF62-0F17" TYPE="vfat"
/dev/sdb1: UUID="e13ec16e-c13c-421e-adef-fc05dbd418e2" TYPE="xfs"
/dev/sdd1: UUID="d60236ff-eefd-417f-808f-aedd587f2ff1" TYPE="reiserfs"
/dev/sde1: UUID="7383a197-8092-422c-9b28-745ad67a7b44" UUID_SUB="8861b6e3-06f7-4be1-ad09-a1b1a64300a5" TYPE="btrfs"
/dev/sdf1: UUID="e13ec16e-c13c-421e-adef-fc05dbd418e2" TYPE="xfs"

• Device inventory from syslog

May 16 09:38:06 Tower emhttp: Device inventory:
May 16 09:38:06 Tower emhttp: shcmd (11): udevadm settle
May 16 09:38:06 Tower emhttp: WDC_WD20EFRX-68EUZN0_WD-WCC4M6LFZU1H (sdb) 1953514584
May 16 09:38:06 Tower emhttp: ST_M13FQBL_QNR_BFW (sdc) 4044975
May 16 09:38:06 Tower emhttp: TOSHIBA_DT01ACA200_Z2UB15RGS (sdd) 1953514584
May 16 09:38:06 Tower emhttp: WDC_WD20EFRX-68EUZN0_WD-WCC4M0FSKEHZ (sde) 1953514584
May 16 09:38:06 Tower emhttp: WDC_WD20EZRZ-00Z5HB0_WD-WCC4M3JJX5NS (sdf) 1953514584
May 16 09:38:06 Tower emhttp: array slots: 24
May 16 09:38:06 Tower emhttp: cache slots: 1

 

Edited May 16, 20179 yr by PleaseWork

Try using a different SATA port and cable, if still not detected post your diagnostics.

Quote

post your diagnostics.

What command will dump the diagnostic logs you're looking for?

Tools -> Diagnostics

Here are the logs:

 

 

tower-diagnostics-20170517-2304.zip

Syslog just show same error repeating, can't see the beginning of the problem, powerdown, connect that disk to different SATA port and replace/swap cables, power back up, start the array and grab and post new diags.