May 29, 20179 yr Hi all, I have a machine which had duel parity 1x4TB and 1x3TB WD Reds. Over the last couple of days I decided to replace the 3TB with a 4TB .... Stopped the array, swapped the drives, got the attention message that ALL data will be removed. After I rebooted the machine every thing came back on line...... but noticed the red cross marker on the original 4TB drive. I was directed to the forum to get assistance "Parity Device Is Disabled, Device is disabled, contents emulated" Help! please .... Sorry forgot the diagnostics !!! unraid_tower-01-syslog-20170529-1806.zip unraid_tower-01-diagnostics-20170529-1908.zip Edited May 29, 20179 yr by numpkin Forgot to send diagnostics
May 29, 20179 yr Community Expert If you have them post the diags pre-reboot, if not post the current diagnostics, not just the syslog.
May 29, 20179 yr Author Hi johnnie.black Thanks for the reply just added the diagnostics file to the original post --- eric
May 29, 20179 yr Community Expert Since we're missing the pre-reboot diags we can't see what happened, but SMART for parity looks fine, couple of CRC errors so you should replace the SATA cable to rule it out and then rebuild to the same disk, to do that: -stop the array -unassign parity -start the array -stop the array -reassgin parity -start the array to begin the parity sync If it happens again grab the diags before rebooting. PS: three more disks have UDMA_CRC errors, these may or not be old, you should monitor them for a couple of weeks, any increase replace the SATA cable.
May 29, 20179 yr Author Hi johnnie.black, Doing the "Parity-Sync/Data-Rebuild in progress" as I type, and thanks for the extra information ...... Will report back after completion ... again many thanks .... --- eric
May 30, 20179 yr Author 11 hours ago, numpkin said: Hi johnnie.black, Doing the "Parity-Sync/Data-Rebuild in progress" as I type, and thanks for the extra information ...... Will report back after completion ... again many thanks .... --- eric Good Morning from the UK The parity check finished this morning and seems OK !! mm I'll watch for any more UDMA_CRC errors as you suggested ... Attached are the latest sys/dia files. thanks again --- eric unraid_tower-01-diagnostics-20170530-0803.zip unraid_tower-01-syslog-20170530-0832.zip
December 16, 20196 yr On 5/29/2017 at 2:41 PM, johnnie.black said: Since we're missing the pre-reboot diags we can't see what happened, but SMART for parity looks fine, couple of CRC errors so you should replace the SATA cable to rule it out and then rebuild to the same disk, to do that: -stop the array -unassign parity -start the array -stop the array -reassgin parity -start the array to begin the parity sync If it happens again grab the diags before rebooting. PS: three more disks have UDMA_CRC errors, these may or not be old, you should monitor them for a couple of weeks, any increase replace the SATA cable. Thanks for this, kinda weird how you have to do this to "undisable" a parity disk. Thought there would be "rebuild" array without having to remove and add devices.
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