[DRBD-user] /dev/drbd/by-res/ and /dev/drbd/by-disk not cleared

Lars Ellenberg lars.ellenberg at linbit.com
Tue Aug 31 16:53:35 CEST 2010

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

On Mon, Aug 30, 2010 at 10:58:51AM -0400, Mathieu Gagné wrote:
> Hi,
> We are having issues with symbolic links in /dev/drbd/by-res/ and
> /dev/drbd/by-disk not being cleared after a resource is
> removed/unconfigured.
> The issue was claimed to be fixed with 8.3.1rc2:
> http://lists.linbit.com/pipermail/drbd-user/2009-March/011771.html

Nope, that was a different issue than yours, (symlinks have not been
updated to new names when they should have) and it was fixed.

> Unfortunately, the issue is not fixed and can still be reproduced.
> We are using DRBD 8.3.7 but used the latest version of
> scripts/drbd.rules from git.
> According to git log, this file has not changed for +15 months:
> http://git.drbd.org/drbd-8.3.git/?p=drbd-8.3.git;a=history;f=scripts/drbd.rules;h=080635f05e63414a34ce85bb1afa11351f3d0ed9;hb=HEAD
> The issue can be reproduced with those steps:
> 1) create a new standalone resource resname (add it to drbd.conf)
> 2) drbdadm create-md resname
> 3) drbdadm attach resname
> 4) drbdadm -- -o primary resname
> 5) drbdadm down resname
> Results:
> 1) Both symbolic links in /dev/drbd/by-res/ and /dev/drbd/by-disk
> still exist.

The device's state is now "unconfigured", but the device still exists.

: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com

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