VE3.x: KVM Disk configuration for 14TB and a single VM

[rbg]

hi,

I configured a ISCSI Volumes (14TB) and created on our VE3 cluster (3 nodes) a volume group. Now I want to assign the whole 14TB to one single VM (Bacula Backup Server). What is the best solution. Should I create one single 14878,72Gb image, or should I create several disk images (for example 7x2TB images)?

cu denny

 

[Nemesiz]

Do you really want to use 14TB as virtual space? In some crash situation you can loose a lot. Better is to make small qcow with Bacula inside and connect all of the rest space with share technologies like local nfs, sshfs, samba ....

 

[rbg]

Do you really want to use 14TB as virtual space? In some crash situation you can loose a lot. Better is to make small qcow with Bacula inside and connect all of the rest space with share technologies like local nfs, sshfs, samba ....

Yes, I think I want. We use two DSS7 Open-e ISCSI storage servers (with underlying BBU raid5) in a failover configuration. With DSS7 you have no NFS failover (not implemented yet). So I have created an ISCSI target; created a shared VG in ProxMox (with disabled "use LUNS directly", as recommended) and splited the whole space into 2TB diskfiles. I have now 8 virtual disks in my Bacula VM and inside I use LVM too.

I used 2TB files, because of handling. It is easier to copy several 2TB, instead of one big file, I think.

cu denny