Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi,
i'm planning to create the following scenario:
I have three different vm's, each one offering a different service.
The vm's are realized with KVM, installed into a plain LV, without a filesystem.
I'd like to have each vm high available. I have only two nodes, each
one with a hardware raid 5:
[ Node 1 ] [ Node 2 ]
| |
[HW RAID5] [HW RAID5]
| |
[Partition] [Partition]
| |
[ PV1 ] [ PV1 ]
| |
[ VG1 ] [ VG1 ]
| |
[ LV1 ] [ LV1 ]
| |
[ DRBD1 ]-----[ DRBD1 ]
| |
[ VM1A ] [ VM1B ]
VM1A and VM1B are identical VM's, offering the same service !
Second VM (second service):
[ Node 1 ] [ Node 2 ]
| |
[HW RAID5] [HW RAID5]
| |
[Partition] [Partition]
| |
[ PV1 ] [ PV1 ]
| |
[ VG1 ] [ VG1 ]
| |
[ LV2 ] [ LV2 ]
| |
[ DRBD2 ]-----[ DRBD2 ]
| |
[ VM2A ] [ VM2B ]
VM2A and VM2B are identical VM's, offering another service.
And so on for further vm's (further services) ...
Do i need cLVM on the nodes for this scenario ?
Bernd