[DRBD-user] Lars said Dont do that. I did.

Lars Ellenberg lars.ellenberg at linbit.com
Wed Mar 17 11:36:18 CET 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 Tue, Mar 16, 2010 at 07:18:20AM -0700, dbarker wrote:
> In a thread last October (split-brain after trying to verify?) Lars Ellenberg
> said:
> "You adjusted network parameters (verify-alg), which we still cannot do
> while keeping the connection.
> So your first "adjust" to add the verify-alg had to disconnect ; then
> reconnect with new parameters.
> Don't do that while both are Primary."
> I found that tidbit while my first online verify was running for three
> hours. I'd added verify-alg md5 to my common sections and adjust all on both
> nodes (which are Primary/Primary 8.3.7). The verify found some out-of-sync
> blocks, so I need to detach/attach on the node that initiated the verify.
> If I hear something better to do in the next few hours, I may change my
> plan. If not, I guess I'll clone both drbd virtual machines, build some test
> disks, modify the clones to use the test disks, new IPs and new hostnames,
> attach them to some second-level ESXi hosts and create VMFS filesystems,
> recreate the situation and try the detach/attach and see what happens.
> Probably it will work fine<g>.
> Anyone, any thoughts?

In case you where asking something, I must have missed the question,
sorry :-]

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

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