Re: Stability problems with ssi-1.9.1+drbd on debian

Markku Tavasti <[email protected]> writes:

> "Roger Tsang" <[email protected]> writes:
>
>> DRBD can generate a lot of traffic on the VM network and you need to
>> ensure ICS messages get through without too much delay.
>
> Hmh, on vmware setup I can add one more network for drbd, so drbd and
> ssi interconnect are on dirrefernt network devices, and should not
> interfere. Maybe I try that, before gathering some old PC's for HW
> testing. 

Unfortunately this doesn't work. On boot, when time for DRBD init
comes, interface for DRBD is not available, and I get kernel panic!
And the problem is on both nodes! Fortunately I have vmware snapshot
on previous sane state, so I can revert back to it.

Unfortunately I cannot understand where to change boot script
order, or modify scipts to do ifup eth2 before starting drbd.
/etc/init.d/drbd is not symlinked to any /etc/rc*.d
directories, and there is no scripts calling it? 

> My final target is High availabilty system for named, mail server, web
> server, etc. I don't know if ssi+drbd is right solution for it? My
> idea is run servers as load-levelled, so they can migrate to other
> node is one node goes down for HW maintenance. On the other hand,
> software updates are more common than HW problems & changes, so two
> computers without SSI might be better option.

Any comments on this?

-- 
M. Tavasti /  [email protected]  /   +358-40-5078254

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