Good Day everyone.. I really hope someone can assist me with this>
I have upgraded a customer FAS 8200 to ontap 9.17. Since the upgrade we have 7 failed disks suddenly.
I found an articled that recommended temporarily suspending Media Scubs,,,
I cannot log an incident with NetApp since the system is out of maintenance.
Please can someone help to try and identify why these disks failed all of a suddent after the upgrade.
#Failing Disks after Ontap Upgrade
fallow pasture
azure flare
I'm not aware of such an issue, can you post the article you mentioned?
But are you aware that ONTAP 9.17.1 is not supported anymore on FAS8200 systems? (https://docs.netapp.com/us-en/ontap-systems/eoa-hardware.html)
I thought the update would not even start but looks like it still works. How did you update the system, via cluster image update or system image update?
fallow pasture
My Apologies... I upgraded to 9.16P8 . NOT 9.17
HEre is the article
https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Multiple_disks_fail_after_upgrading_ONTAP_to_9.11.1__or_9.12.1
azure flare
From which version did you update?
You don't need toi disable media scrubbing once you are on a fixed version which 9.16.1P8 is.
You might be able to unfail the disks if these are really false-positives.
But if the failed disks are all from one RAID-group you might have a problem...
fallow pasture
Updated from 9.15.P7
OK so if they are from different raid Groups... I can try unfail them?
In Addition, How could I explain to the custeromer that 7 DIsks failed shortly after upgradr?
azure flare
Updated from 9.15.P7
The issue from the article is already fixed in 9.15.1P7.
azure flare
OK so if they are from different raid Groups... I can try unfail them?
If they are from different RAID-groups the chance is much higher that you didn't lose data. Are the aggregates still online is the main question. Is everything down at the moment?
If not then you had enough spares and/or you did not lose too many disks from the same RAID-group.
azure flare
In Addition, How could I explain to the custeromer that 7 DIsks failed shortly a...
I don't know. Why did you update a system without support in the first place?
Without logs it's really difficult to determine why these 7 disks failed, could be other reasons.
https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/How_to_unfail_a_disk_-_ONTAP_9
But read the warnings really carefully...