Hi TSM experts,
 
Our incr backup fails consistently in the last few days. It starts alright but 
after a few gigabyte on the client we get the error:

ANS1301E This operation cannot continue due to an error on the IBM Spectrum 
Protect server. See your IBM Spectrum Protect server administrator for 
assistance.

On the server side we see:

18-08-2023 22:57:25 ANR2012W Error encountered for storage pool directory:
\\medbackup.med.ad.bgu.ac.il\tsmc1 in storage pool:
CPOOL. (SESSION: 194578)
18-08-2023 22:57:25 ANR0530W Transaction failed for session 194578 for node
MEDFS2 (WinNT) - internal server error detected.
(SESSION: 194578)
18-08-2023 22:57:26 ANR2012W Error encountered for storage pool directory:
\\medbackup.med.ad.bgu.ac.il\tsmc1 in storage pool:
CPOOL. (SESSION: 194578)
 

Then we find one or more containers unavailable. We fix the containers with 
"audit container ... action=scanall"
No errors are found. But the next backup will fail again.

The server is on 8.1.17, the client as well.
The containers are on a number of disks on a shared windows server 2019. There 
have been some updates on the windows server recently. (KB5029247,KB5029647)

The audits are fine, data is accessible, but backups fail.
Any ideas ?

David de Leeuw
Ben-Gurion University of the Negev
Beer Sheva Israel

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