[DRBD-user] Fwd: DRBD primary/primary vs. VMFS3 ?

Patrick Zwahlen paz at navixia.com
Wed Apr 6 23:36:41 CEST 2011

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

> -----Original Message-----
> From: drbd-user-bounces at lists.linbit.com [mailto:drbd-user-
> bounces at lists.linbit.com] On Behalf Of Lars Ellenberg
> Sent: mercredi 6 avril 2011 15:55
> To: drbd-user at lists.linbit.com
> Subject: Re: [DRBD-user] Fwd: DRBD primary/primary vs. VMFS3 ?
> Which establishes that we have only _one_ iSCSI target on top of DRBD,
> and this becomes a "classical" Single-Primary DRBD failover solution.

However, two nodes can have two DRBD resources each, with two iSCSI
targets on top (each node exporting one of them, with cross failover to
the other node using pacemaker for instance). That makes a nice dual
active/passive setup, with some load balancing across the two nodes. The
cost of that is that you end up with two datastores, instead of just

I created a virtual SAN this way using two VMs, but I bet it would work
the same on physical nodes...

Cheers, - Patrick -

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