[SOLVED] - Errors in Syslog

[WorriedAboutDataLoss]

I recently moved my unraid h/w from my old case to a new silvertone case with hot swap drive bays about a week back. Since then whenever I try to write something to the array the transfer speed fluctuates wildly and even fails sometime (reaching 0 MB/s).  At the same time I see these errors popup in the logs:

 

May 13 08:51:56 MediaTower kernel: ata2.00: exception Emask 0x10 SAct 0x0 SErr 0x280100 action 0x6 frozen
May 13 08:51:56 MediaTower kernel: ata2.00: irq_stat 0x08000000, interface fatal error
May 13 08:51:56 MediaTower kernel: ata2: SError: { UnrecovData 10B8B BadCRC }
May 13 08:51:56 MediaTower kernel: ata2.00: failed command: READ DMA EXT
May 13 08:51:56 MediaTower kernel: ata2.00: cmd 25/00:40:50:17:c9/00:05:5c:00:00/e0 tag 0 dma 688128 in
May 13 08:51:56 MediaTower kernel: res 50/00:00:4f:17:c9/00:00:5c:00:00/e0 Emask 0x10 (ATA bus error)
May 13 08:51:56 MediaTower kernel: ata2.00: status: { DRDY }
May 13 08:51:56 MediaTower kernel: ata2: hard resetting link
May 13 08:51:56 MediaTower kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
May 13 08:51:56 MediaTower kernel: ata2.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
May 13 08:51:56 MediaTower kernel: ata2.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
May 13 08:51:56 MediaTower kernel: ata2.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
May 13 08:51:56 MediaTower kernel: ata2.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
May 13 08:51:56 MediaTower kernel: ata2.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
May 13 08:51:56 MediaTower kernel: ata2.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
May 13 08:51:56 MediaTower kernel: ata2.00: configured for UDMA/33
May 13 08:51:56 MediaTower kernel: ata2: EH complete

 

Can someone shed some light on this. Is this a bad cable connection I need to look at. Seems thee errors are always on ata2. If it's a loose / bad SATA cable causing the issue - which drive should I be looking at?

[JorgeB]

6 minutes ago, WorriedAboutDataLoss said:

Is this a bad cable connection I need to look at.

Most likely, replace the SATA cable.

[itimpi]

27 minutes ago, WorriedAboutDataLoss said:

- which drive should I be looking at?

There will be entries in the syslog that tell you what drive is associated with ata2.

[JorgeB]

And if you can't find it post the complete diagnostics so we can see.

[WorriedAboutDataLoss]

Thanks for your help everyone! Looks like I received a bad batch of SATA cables. Switched to an older cable I had lying around and the errors are all gone now and data transfer is very stable.