Staying alive: Setup and management of an iSCSI HA virtualization cluster

GROß, Thomas (Dipl.-Ing, Chemnitz)

Cluster software stack: Raid /dev/raid0
DRBD /dev/drbd0
LVM /dev/system/myserver-root
iSCSI Server
IPoIB Infiniband
iSCSI Client
XEN/KVM

Storage (SAN) ↔ cluster server
Administration über LAX server
LAX cluster tools
convention for hostname /lv/iscsi
1 vm = 1 iscsi target
Eigenes Skript zum Erzeugen einer neuen VM:

vx-install -i 192... -r 512M -f 10G -s 1G -c 1 -d "my testerver" cl1 os10.3-base testsrv1

Andere:

vx-start cl1 testserv1
vx-active | -inactive
vx-stop | -del | -kill...
vx-move cl1 testserv1 cs2

Backup/Restore:

vx-backup-add ...

HA High availability: downtime in minutes
Alarm Skript: Bash Skript
Datenbank mit VMs/Services