Proxmoxs storageinstall

[nemke]

Hello
New to this, I have HP server an I like to intall Proxmox.
HP server have 6 SAS drives, so every have 1,2TB.

So my question which way is better.

1. To have 2 SAS drives on raid1 (mirror) like array1 on which install just Proxmox OS. So if any of this 2 SAS driver "failes" I replace it, not lusing running system.
And other 4 Sas driver to put on raid 5, (like Array2) so I can use them for VM creation.

or

2. To put all 6 Sas drives in raid5 (array1) and to install Proxmox and VM on that.


P.S. For me, it is enough to have protection of ONE Sas drive fail.
And, also I have TrueNAS on on other server so I will do externall backup.

Which ver (1 or 2) is better and secure and sacalable for my usage ?
Thanks

 

[Dunuin]

SSDs or HDDs? Usually you would create:
3.) 2 disk mirror for the OS + 4 disk striped mirror for guests
4.) 6 disk stirped mirror for OS as well as guests

Especially when IOPS performance is important, like when using slow HDDs.

 

[nemke]

All Driver are SAS 2,5', HP. All are the same

Model	EG001200JWJNQ
Media Type	HDD

So in this scenario what solution is best ?

 

[Dunuin]

So 10K HDDs. Won't be fast, no matter what you do, but 6 disk striped mirror (raid10) would be your fastest option without buying some enterprise/datacenter SSDs

 

[nemke]

Yes, enterprise/datacenter SSD with 1,2TB and more are expensive. And I don't need for my usage.

So, to put all 6 SAS drives in RAID10 (array1) and to install Proxmox on that, and also all needed VMs on same.
And if ANY of this 6 driver fail, I can replace it with new, and not losing anything ? RAID10 gives protection for 1 disk fail + speed.

 

[nemke]

Sorry
But If I buy two SAS SSD with 800GB, and put them in mirror (Raid1) like array1. Then install Proxmox OS on that...
And 6 SAS HDD that I have put, in Raid10 like array2and use that for VMs.

Is this better solution ?

 

[Dunuin]

So, to put all 6 SAS drives in RAID10 (array1) and to install Proxmox on that, and also all needed VMs on same.
And if ANY of this 6 driver fail, I can replace it with new, and not losing anything ? RAID10 gives protection for 1 disk fail + speed.

Yes

Sorry
But If I buy two SAS SSD with 800GB, and put them in mirror (Raid1) like array1. Then install Proxmox OS on that...
And 6 SAS HDD that I have put, in Raid10 like array2and use that for VMs.

Is this better solution ?

VM storage needs IOPS performance, not the PVE OS disks. HDDs got like 100-200 IOPS. SSDs some ten thousands to a few million IOPS. If you want to replace the HDDs, then for the VM storage.

 

[nemke]

Many Thanks for answering my question