I've been having issues with my unraid and I can't track down the cause of it.

 

The ATA is being dropped with a hard reset, and coming back up at a lower level.   These are 6 Gbps connections, and the first drop go down to 3 Gbps and then later 1.5 Gbps.

 

I've changed sata cables, power supply, SATA controllers, motherboard, even different drives and this keeps occuring.    I'm at a loss what could be causing this.

It occurs during rebuilding of Parity and Plex streaming.       I'm out of ideas what could be causing it.   Any suggestions GREATLY appreciated.

 

 

Aug  2 05:03:38 Tower kernel: ata7.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
Aug  2 05:03:38 Tower kernel: ata7.00: failed command: WRITE DMA EXT
Aug  2 05:03:38 Tower kernel: ata7.00: cmd 35/00:08:88:ce:3f/00:00:7f:00:00/e0 tag 12 dma 4096 out
Aug  2 05:03:38 Tower kernel:         res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
Aug  2 05:03:38 Tower kernel: ata7.00: status: { DRDY }
Aug  2 05:03:38 Tower kernel: ata7: hard resetting link
Aug  2 05:03:39 Tower kernel: ata7: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Aug  2 05:03:39 Tower kernel: ata7.00: configured for UDMA/33
Aug  2 05:03:39 Tower kernel: ata7: EH complete

 

Edited August 2, 20196 yr by devanchya

Please post the diagnostics: Tools -> Diagnostics

I've attached the diagnostics.   I haven't found anything obvious in them, but obviously I wouldn't be here if I could see it

tower-diagnostics-20190802-1415.zip

20 minutes ago, devanchya said:

I've been having issues with my unraid and I can't track down the cause of it.

 

The ATA is being dropped with a hard reset, and coming back up at a lower level.   These are 6 Gbps connections, and the first drop go down to 3 Gbps and then later 1.5 Gbps.

 

I've changed sata cables, power supply, SATA controllers, motherboard, even different drives and this keeps occuring.    I'm at a loss what could be causing this.

It occurs during rebuilding of Parity and Plex streaming.       I'm out of ideas what could be causing it.   Any suggestions GREATLY appreciated.

 

 

Aug  2 05:03:38 Tower kernel: ata7.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
Aug  2 05:03:38 Tower kernel: ata7.00: failed command: WRITE DMA EXT
Aug  2 05:03:38 Tower kernel: ata7.00: cmd 35/00:08:88:ce:3f/00:00:7f:00:00/e0 tag 12 dma 4096 out
Aug  2 05:03:38 Tower kernel:         res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
Aug  2 05:03:38 Tower kernel: ata7.00: status: { DRDY }
Aug  2 05:03:38 Tower kernel: ata7: hard resetting link
Aug  2 05:03:39 Tower kernel: ata7: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Aug  2 05:03:39 Tower kernel: ata7.00: configured for UDMA/33
Aug  2 05:03:39 Tower kernel: ata7: EH complete

 

In my experience this type of error is nearly always related to the SATA cabling.

The 6 or 10 port Asmedia based controller you're using is in reality a 2 port SATA controller with port multipliers, they are known to cause constant timeout errors with Linux, and can even drop disks, definitely not recommended.

thanks @itimpi , I have replaced all the SATA cables already, and moved to a different port as well.

@johnnie.black can you suggest a replacement.   I got these from someone else recommending them and obviously lost the bet.

Any LSI with a SAS2008/2308/3008/3408 chipset in IT mode, e.g., 9201-8i, 9211-8i, 9207-8i, 9300-8i, 9400-8i, etc and clones, like the Dell H200/H310 and IBM M1015, these latter ones need to be crossflashed.

I haven't used LSI SAS to Sata before, anything I need to know.   A manual or read-up will do.

Nothing special, just be aware that the miniSAS to SATA cables need to be forward breakout, reverse breakout look the same but won't work for this.

You sent me down a rabbit hole.  Looks like it would take a month for a card to get to me.

Anything I can do for safety now?    Doesn't seem that anyone in Toronto sells these off the shelf anymore... 

Not much you can while using them, just avoid large I/O if possible.