ONTAP Discussions

"kSMF service thread held > 25 (sec)"


We had a part of a vmware cluster go down this morning when a VMFS volume containing some iSCSI VMs apparently became unreachable for a period of time.


The only thing we see in the Netapp logs is:


Event: ksmf.svc.watchdog: "kSMF service thread held > 25 (sec) by application for table d_vdisk_lun"
Message Name :
Sequence Number :
Description :
This message occurs when an application is taking too long to complete a kSMF operation.
Action :


Anyone seen this?


Would this error reflect a lockup on the Netpp side, or would this error be a side effect of the iSCSi network connectivity going away for a while? I could not find any info in Google search for this error string....





might be a performance issue


do a search for 'toolong' in the EMS log


Is the system sending Autosupport? If yes, you can ping me (private message) the serial number and I'll have a look


Is there an open case?

NetApp on Discord Image

We're on Discord, are you?

Live Chat, Watch Parties, and More!

Explore Banner

Meet Explore, NetApp’s digital sales platform

Engage digitally throughout the sales process, from product discovery to configuration, and handle all your post-purchase needs.

NetApp Insights to Action
I2A Banner