topic WAFL Inconsistent in ONTAP Hardware

WAFL Inconsistent

Johan_K — Fri, 23 Sep 2022 08:57:45 GMT

Hi,

First i got HA Group Notification (HA GROUP ERROR: DISK/SHELF COUNT MISMATCH) ERROR

Then i got HA Group Notification (WAFL INCONSISTENT USER DATA BLOCK) ALERT

4 disks have failed and now reconstruction is complete.

Scrubbing is running as im writing.

RAID Disk	Device    	HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
---------	------    	------------- ---- ---- ---- ----- --------------    --------------
failed  	0d.23.1L1 	0d    23  1   SA:B   0 MSATA  7200 3807816/7798408704 3815447/7814037168 
evacuated	0d.23.1L2 	0d    23  1   SA:B   0 MSATA  7200 3807816/7798408704 3815447/7814037168 
not responding	0d.23.2L1 	0d    23  2   SA:B   0 MSATA  7200 3807816/7798408704 3815447/7814037168 
evacuated	0d.23.2L2 	0d    23  2   SA:B   0 MSATA  7200 3807816/7798408704 3815447/7814037168

I want to replace the disks.

But before that i want to know if Wafl is back to normal.

How do i know that?

Re: WAFL Inconsistent

Ontapforrum — Fri, 23 Sep 2022 09:38:01 GMT

1st (Recommended)- If unsure, always open a case with NetApp to make sure all is well.

2nd - As you said, 'recon' is completed, check the event log errors, aggr status etc, if 'aggr' is looking healthy?
a) Check the errors (WAFL INCONSISTENT related), how old or often they are repeated? Is the system still reporting it?
::> event log show -severity * -message-name callhome*
::> event log show -severity * -message-name *wafl*

b) Check aggr status ?

AutoSupport Message: DISK/SHELF COUNT MISMATCH
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/AutoSupport_Message%3A_DISK%2F%2FSHELF_COUNT_MISMATCH

Re: WAFL Inconsistent

Johan_K — Fri, 23 Sep 2022 10:41:10 GMT

thx i will contact Netapp support. I dont want to take any chanses.

Thank you again