[DRBD-user] What to do about read errors on the primary?

Rasto Levrinc rasto.levrinc at gmail.com
Fri Sep 21 10:54:11 CEST 2012

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

On Fri, Sep 21, 2012 at 10:34 AM, Lars Ellenberg
<lars.ellenberg at linbit.com> wrote:
> > When drbd loses a primary disk, it continues to work, read/write, using the
> > secondary disk. The active node will remain primary, the standby node will
> > remain secondary, but the disk state will be diskless/uptodate.
> If you configure it "correctly". Unfortunately, for historical reasons,
> the "default" on-io-error handling was "pass-on", which is ill labeled,
> and not very useful either.
> Always explicitly configure "detach" (or "call-local-io-error",
> if you have a need for such handler to be triggered).

That means, if you change the default now, it would probably fix a lot of
configurations and will not break even one of them. :)


Dipl.-Ing. Rastislav Levrinc
rasto.levrinc at gmail.com
Linux Cluster Management Console

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