Upgrade to 9.10-STABLE-201606072003 IO Wait

[BossyBear]

Upgraded from 9.10-STABLE-201605240427
to 9.10-STABLE-201606072003

And my VMs are throwing CPU IO Wait errors from disk overload.

Reverted to 9.10-STABLE-201605240427 and the problem went away.

Xenserver 6.5 SP1 VMs mounted via iSCSI over LACP.

Were there release notes I missed that this update would require changes/tweaks?

I can't be sure that this is a networking or a storage controller issue but CIFS file copies in and out seem the same on both versions so it seems more likely specific to iSCSI.

 

[Mlovelace]

Upgraded from 9.10-STABLE-201605240427
to 9.10-STABLE-201606072003

And my VMs are throwing CPU IO Wait errors from disk overload.

Reverted to 9.10-STABLE-201605240427 and the problem went away.

Xenserver 6.5 SP1 VMs mounted via iSCSI over LACP.

Were there release notes I missed that this update would require changes/tweaks?

I can't be sure that this is a networking or a storage controller issue but CIFS file copies in and out seem the same on both versions so it seems more likely specific to iSCSI.

You should grab a debug of the server on the update that broke iSCSI and file it with a bug report, see if they can figure out what happened.