Running the "attributes disk clear readonly in diskpart hung my machine for a good long while and eventually "completed" whereby what it actually did was knock my pool offline again.

Ok so, that worked! Unfortunately the fix was temporary as a rebooted my machine and when it came back up the disk was offline again. I can use diskpart to bring it back but not a permanent fix.
...

I installed both Data LifeGuard and SeaTools and ran tests on all drives. Everything appears to be passing.

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The disk is offline due to "critical write failures" so unfortunately this didn't work for me.

Oh yes, I don't know that it is actually relevant but..... I was on here some months back with another somewhat similar Storage Pool issue which happily I was able to resolve.

How do I...

I have a storage space on my personal computer that consists of 3 drives. My storage space is setup as parity. My pool has exhibited some shaky behavior recently in which the pool would go offline...

Haven't left you guys yet. Just an update here, I did try the v1709 upgrade again once my data was well backed up and again I encountered the same problem with my storage pool. Next I may try...

So the good news is that rolling back the 1709 version did magically resolve my issue. The bad news is that I don't know why that worked really. My pool is running NTFS so I've no explanation. ...

Here's a small update. I haven't yet reverted because when reconnected my healthy WD drive and rebooted I noticed something curious; Now in the storage pool screen within Windows the WD drive now...

Done. Here are the results:

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I have not yet attempted to revert to 1703 (not sure how I do that, honestly) so this is all exactly as it was since I posted last.


By the way gents,...

I'm afraid I'm not sure what to look for in Event Viewer. I don't see anything that is drawing my attention as being storage pool related but there is, I think, a lot of other noise in here.

Hard disk sentinel appears to tell the same story as Crystal:

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The other two disks in the pool are "PERFECT" according to HDS.

Here is my current Storage Spaces view:

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I believe this is unchanged from yesterday.

I find it interesting that 2 of the 3 disks in the pool appear to have errors in Storage Spaces but...

Here is the output from the PS commands:

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Here is the info on the 3 disks from Crystal Disk:

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I checked the event viewer for errors and there are nearly 259 just...

Here is my recent update history which covers the incident. If there's another view that shows more detail / history I'm not sure how to find it in Win 10. Interestingly I'm not sure what all the...

I apologize if this is not in the correct forum.

I have a storage space on my personal computer that consists of 3 drives. My storage space is setup as parity. Last night I rebooted my machine...