I’ve recently worked on migrating some very old Cacti instances to a more recent version, going from some very early 0.8.x 32-bit version running on MySQL 4 to the more current 0.8.8c 64-bit release on MariaDB 5.5. Everything went really well, except for one …
There are many ways to generate an Universally Unique Identifier or UUID in Linux. Not long after I wrote my post about my discoveries on DRBD with Corosync and iSCSI, I discovered that I have to define SCSI serial numbers for each of my LUNs.
I decided to have them …
I’ve recently had the occasion to setup an iSCSI over DRBD highly-available active-passive cluster, using Corosync for the messaging bus between the nodes and Pacemaker as the cluster manager. The cluster was comprised of multiple DRBD resources, most of them being iSCSI logical units, or LUNs.
Although I won …
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