Building a NAS/SAN

[elmacus]

Hi.
I was thinking of building my own NAS instead of buying a Readynas/equalogic.
We have an DELL R510 with 12 disk 3.5" empty bays, and 2 internal 2.5" bays.
H700 raidcard with batterybackup installed.
What would be best practise here ?

For use with Proxmox1.8 live migrate.

Buy 2 SSD 60 GB 2.5" for internal OS, raid1.
Add 4 2TB as raid10, in an LVM group.
Later add 4 2TB as raid10, add to LVM group.
Later add 4 2TB as raid10, add to LVM group, when budget allows.

OR:
Buy 2 SSD 60 GB 2.5" for internal OS, raid1.
Add 7 2TB as Raid6 with 1 hotspare.
Later add 5 disks to the raid6, when budget allows.

The 2TB will be raid edition Western Digital disks.

The OS for SSD would be Proxmox, but i realize i only get EXT3 for disks, or should i install Squeeze instead for EXTS and speed ?
I use mainly NFS, and a few iSCSI/LVM.

My main concern is stability, and the possibility to build half now and half later.
Speed is also important since its going to host like 15 win + 15 linux KVM's.

Suggestions is welcome.

 

[udo]

Hi.
I was thinking of building my own NAS instead of buying a Readynas/equalogic.
We have an DELL R510 with 12 disk 3.5" empty bays, and 2 internal 2.5" bays.
H700 raidcard with batterybackup installed.
What would be best practise here ?

For use with Proxmox1.8 live migrate.

Buy 2 SSD 60 GB 2.5" for internal OS, raid1.
Add 4 2TB as raid10, in an LVM group.
Later add 4 2TB as raid10, add to LVM group.
Later add 4 2TB as raid10, add to LVM group, when budget allows.

OR:
Buy 2 SSD 60 GB 2.5" for internal OS, raid1.
Add 7 2TB as Raid6 with 1 hotspare.
Later add 5 disks to the raid6, when budget allows.

The 2TB will be raid edition Western Digital disks.

The OS for SSD would be Proxmox, but i realize i only get EXT3 for disks, or should i install Squeeze instead for EXTS and speed ?
I use mainly NFS, and a few iSCSI/LVM.

My main concern is stability, and the possibility to build half now and half later.
Speed is also important since its going to host like 15 win + 15 linux KVM's.

Suggestions is welcome.

Hi,
do i understand you right, that the OSs will be proxmox as NAS/SAN-Server? I would prefer a distro which is specialized for this.
With the SATA-Disks: if you have a chance you should use raid-10. It's depend on the raidcontoller - some can extend the raidset later. So you can start with 4 disks and expand to 6 or 8 (more than 8 disks normaly don't speed up the raid).

Test the speed of the iscsi-shares... which performance you get on the pve-hosts.

Udo