Query regarding RAID

[Syed Maaz Rehan]

Hello Everyone,

I have a query regarding implementation of RAID in proxmox. I wish to implement RAID on my white box solution. As per the technical specs it supports "Dual Storage (mSATA SSD & 2.5" SATA SSD/HDD)". is it possible to implement RAID?

In simple terms can I implement raid with one mSATA SSD drive and one 2.5" SATA HDD? This is what I am running at the moment.

Moreover, what is the criteria for disks in order for us to make sure that they are good for RAID implementation?

Kindly shed some light on this topic.

 

[Dark26]

If you installed proxmox over a debian installation, everything is possible.

at home :

root@prox1:~# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 sda2[0](W) mmcblk0p1[2]
      3904512 blocks super 1.2 [2/2] [UU]

you can see the W on sda for

-W, --write-mostly
subsequent devices listed in a --build, --create, or --add command will be flagged as 'write-mostly'. This is valid for RAID1 only and means that the 'md' driver will avoid reading from these devices if at all possible. This can be useful if mirroring over a slow link.

 

[Syed Maaz Rehan]

I installed proxmox on a bare metal machine with no OS previously installed. I installed proxmox version 5.2 on it. Isn't proxmox built on linux debian?

 

[Syed Maaz Rehan]

I have another question. When deploying raid , the drive on which the proxmox os is installed, this drive also participates in the raid or not?