[DRBD-user] On-line verification problem

Lars Ellenberg lars.ellenberg at linbit.com
Fri May 22 10:56:05 CEST 2009

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

On Thu, May 21, 2009 at 04:30:37PM -0500, Marco Gaertner wrote:
> David,
> 	Your analysis looks really impressive.  I have an issue that you may
> have an insight on.
> 	I am running 8.3.1 on a geographically dispersed cluster.  In order
> to compress the data exchange, and limit the bandwidth, I am using OpenVPN
> to connect both machines.  The nature of OpenVPN in using UDP makes it so
> the connection is dropped once in a while, though recovered quickly.  The
> usage of the cluster is relatively sparse, so it affords me to do the above
> with no issues.
> 	When I am doing a drbdadm verify all and the connection drops, the
> verification also stops.  I wish it would continue where it last was.  So,
> effectively, I can never verify the whole disk.  Now, I am also using
> data-integrity-alg crc32c, so I am not so concerned.  However, do you know
> if this is meant to be this way?  Do you have any suggestions?

resuming the online verify (or, more generally dedicated verification of
selected areas) is on our todo list.

currently what you observe is expected behaviour.

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

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