[DRBD-user] local WRITE IO error sector 21776+1016 on dm-2

Lars Ellenberg lars.ellenberg at linbit.com
Thu Jul 25 11:08:29 CEST 2019

On Wed, Jul 24, 2019 at 10:29:26AM +0200, Roland JARRY wrote:
> Hello,
> I answer to myself (and others if it can help !).
> I seems to be the same issue described by Lars
> (http://lists.linbit.com/pipermail/drbd-user/2017-February/023024.html)
> : WRITE SAME not supported by my hardware (HPE Smart Array P816i-a SR
> Gen10 on HP ProLiant DL380 Gen10).
> I saw a lot of posts about this issue but didn't see messages about
> WRITE SAME on my log (neither by DRBD, nor by device manager LVM).
> Work around proposed by Lars works.

No need to use a workaround anymore, we added that as config option,
too much hardware (actually, mostly "hardware" in virtualization
environments) did pretend to support it but then failed when someone
would try to actually use the feature.

So now you can just tell DRBD to "disable-write-same".

> Maybe this one can also be used :
> https://chris.hofstaedtler.name/blog/2016/10/kernel319plus-3par-incompat.html
> finding before ATTRS{rev} property of disks.

For your specific hardware, probably yes.

: Lars Ellenberg
: LINBIT | Keeping the Digital World Running
: DRBD -- Heartbeat -- Corosync -- Pacemaker

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