Help needed with disk-configuration

[nincsneve]

Hi there,
i would like to configure my storage-devices with best performance for proxmox.
I have following disk-configuration:

1x 500 GB (for System)
1 x 2 TB (for openvz-guest with high write-rates)
8x1TB attached to adaptec 5805
- 2x1TB are configured in Raid1 for Backup
- 6 x 1TB are available for configuration

1 tried the configuration, but it is absolutely suboptimal. I did a mistake at the partition-configuration, so i have log-messages with "attempt to access beyond end of device".

I have 1 openvz-guest, that should use the 2TB-disk. I configured it by mounting the 2TB-disk to /var/lib/vz/private/$VEID. I am not shure, if this is a good configuration, but it seems to be working.

My question is, what hints you guys have, to do a goof configuration?
At which point is it a must to use lvm? I don't like lvm, becaus a lost much data in the past with it.
Can proxmox handle GPT?

my current config:

- 2 x 3 disks in Raid5, one for storage, one for pvedata.
- 2 disks for backup/raid1

 

[udo]

Hi,
it's depends on your usage - openvz, kvm, cluster?
If you have an cluster, than is kvm with shared storage (San, DRBD, NFS) very usefull (live migration).

You config looks in some parts suboptimal for me:
The system ist on a single disk - if this disk fails, your config of the VMs are gone...
One Sata-Disk for high disk-io - normaly you should use the buffer of the raid-controller and also more disks for that.

I have one setup which work well (but handmade):
2 * 2TB (perhaps for you is 2 * 1TB enough) in Raid1 for system and backup (not the lv pve-data).
The other disks as raid-10. In my case i use one slice as pve-data, and two as drbd-device (one for each server).
Raid-10 give much more power as on single 2TB-Disk (in my case i use SAS-Disks for raid-10).

Udo