[PVE-User] LVM over ISCSI issue

Yannis Milios yannis.milios at gmail.com
Wed Aug 12 14:51:06 CEST 2020


On Wed, 12 Aug 2020 at 12:12, Amin Vakil via pve-user <
pve-user at lists.proxmox.com> wrote:

> Do you have any reason leading you to believe enabling discard is the
> problem?
>

I was mainly driven by search results on the internet based on
"0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0" as keywords.

>> kernel: sd 1:0:0:0: [sdb] tag#74 Add. Sense: Logical unit communication
failure

This also suggests that the (iscsi?) communication between the initiator
and the target was lost for some reason.
Can you check on iscsi target (NAS) logs for any clues at the same time?
If possible, you could try separating iscsi network from nfs network or
even rolling back to a previous pve kernel to see if that will help.

Y.


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