May 14, 20215 yr Hi Guys, got a disabled disk a couple of days ago and I dowloaded the diagnostic. Can you be so kind yo take a look at it? Thanks
May 14, 20215 yr Community Expert If you want anyone to look at your diagnostics you will actually have to attach them to a post
May 14, 20215 yr Community Expert Do you have notifications enable? There were multiple disks with read errors: May 1 16:53:20 Monstruo kernel: md: disk4 read error, sector=6445062760 May 1 16:53:20 Monstruo kernel: md: disk4 read error, sector=6445062768 May 1 16:53:20 Monstruo kernel: md: disk4 read error, sector=6445062776 ... May 2 01:52:39 Monstruo kernel: md: disk15 read error, sector=588559224 May 2 01:52:39 Monstruo kernel: md: disk15 read error, sector=588559232 May 2 01:52:39 Monstruo kernel: md: disk15 read error, sector=588559240 and then disk9, disk4 and disk15 look more like a connection/power issue, replace cables but also run an extended SMART test on disk15 since it's showing some issues. As for disk9 it dropped offline, so there's no SMART, check/replace cables and post new diags.
May 14, 20215 yr Author Ok I will check but I replaced all cables with high quality ones few months ago for the same issue so I am thinking that it might be related to something else?
May 14, 20215 yr You should also look into this : 6 hours ago, JorgeB said: Do you have notifications enable? Seems that the errors happened over several days. The sooner you take action after errors, the better.
May 15, 20215 yr Author 17 hours ago, JorgeB said: Do you have notifications enable? There were multiple disks with read errors: May 1 16:53:20 Monstruo kernel: md: disk4 read error, sector=6445062760 May 1 16:53:20 Monstruo kernel: md: disk4 read error, sector=6445062768 May 1 16:53:20 Monstruo kernel: md: disk4 read error, sector=6445062776 ... May 2 01:52:39 Monstruo kernel: md: disk15 read error, sector=588559224 May 2 01:52:39 Monstruo kernel: md: disk15 read error, sector=588559232 May 2 01:52:39 Monstruo kernel: md: disk15 read error, sector=588559240 and then disk9, disk4 and disk15 look more like a connection/power issue, replace cables but also run an extended SMART test on disk15 since it's showing some issues. As for disk9 it dropped offline, so there's no SMART, check/replace cables and post new diags. Just to be super sure on what I have to do... I checked the cables and they all seems ok... Now what? Sorry for the stupid question but every time I make a mess :-(...
May 15, 20215 yr Author I mean…. “As for disk9 it dropped offline, so there's no SMART, check/replace cables and post new diags.“ How should I proceed??? I checked the cables and all fine… now how I can put the drive back on??
May 15, 20215 yr Community Expert This is covered here in the online documentation that can be accessed via the Manual link at the bottom of the Unraid GUI. It is up to you whether you use the option to rebuild to a spare drive (safest) or the one to rebuild the disk to itself.
May 15, 20215 yr Community Expert 1 hour ago, gideva said: How should I proceed??? When the drive is back online post new diags.
May 16, 20215 yr Author Here it is... One more thing: is it advisable to add a second parity disk? Thanks monstruo-diagnostics-20210516-2041.zip
May 17, 20215 yr Community Expert 22 hours ago, gideva said: One more thing: is it advisable to add a second parity disk? This is really a decision you have to make for yourself on a cost/benefit/risk basis. Adding a second parity protects against having 2 simultaneous dish failures, but if you have a good backup strategy you may decide the benefits do not outweigh the cost. It is always worth remembering that extra parity is about high availability and is not a guarantee against data loss so anything important should always be backed up elsewhere.
May 17, 20215 yr Author 56 minutes ago, itimpi said: This is really a decision you have to make for yourself on a cost/benefit/risk basis. Adding a second parity protects against having 2 simultaneous dish failures, but if you have a good backup strategy you may decide the benefits do not outweigh the cost. It is always worth remembering that extra parity is about high availability and is not a guarantee against data loss so anything important should always be backed up elsewhere. Crystal clear.... Thanks for your always valuable advices!
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