AW: [LinuxFailSafe] Offtopic DRBD

[Martin Bene]

Hi Robert,

> Is it stable enough for pruductive usage?

There are kernel/drbd kombinations that work reliably enough to be used =
in production systems, I've got ~ 10 clusters using drbd in production =
use. no problem/dataloss so far and quite a few successfull failovers =
(both scheduled and real errors) so far.

> Is it able to integrate in a kernel 2.4?

Yes, 2.4 is the prefered kernel series for drbd. Personaly I'm using =
2.4.18 + drbd-0.6.1-pre10 on most systems, only caveat with this =
combination is that the kernel must be compiled with HIGHMEM support =
turned off. Later versions (pre12, current CVS) don't have this =
restriction any longer but I haven't yet found time to switch.

> The performance won't be critical i think,=20
> we could use a Gigabit crosslink calbe.

This will help you as far as normal use of the drbd device is concerned, =
i.e replication of writes. it won't help for initial synchronisation =
(drbd SyncAll or SyncQuick state): there's a limit of about 5-6MB/s for =
the replication regardless of wire speed.


Bye, Martin