Mirrored SAN vs DRBD

SAN vs DRBD

We sometimes get asked, “Why not simply use a mirrored SAN instead of DRBD®”? This post shows some crucial differences between mirrored SAN and DRBD. Basically, the first setup is having two servers, one of them actively driving a DM-mirror (RAID1) over (e.g.) two iSCSI volumes that two SANs export; the alternative is using a […]