RAID disks?

[Samat K Jain]

Has anyone played with spindown and the constituents with Linux software RAID arrays?

Is there anything particularly negative to be worried about before I try...

--
Samat K Jain <http://samat.org/> | GPG: 0x0x4A456FBA

The beauty of the second amendment is that it will not be needed until they try to take it.
-- Thomas Jefferson (598)

[Dimitri]

Hi,

Sorry for the late reply. I use it myself with lvm (not really raid,
but close) and haven't experienced any problems with it.

All your disks will just spin up and down at about the same time.

>  signature.asc
> < 1KViewDownload

[Samat K Jain]

On Friday 04 September 2009 10:38:14 am, Dimitri wrote:
> Sorry for the late reply. I use it myself with lvm (not really raid,
> but close) and haven't experienced any problems with it.
>
> All your disks will just spin up and down at about the same time.

Great, I'll try it!

The kind of things I'm worried about are perhaps one disk taking longer to spinup than another, and the Linux md driver subsequently removing that disk from the array. I could think up other horror scenarios but just wanted to know if they had happened to anyone yet before simply trying.

--
Samat K Jain <http://samat.org/> | GPG: 0x0x4A456FBA

You're not Dave. Who are you?
-- None (110)

[Dimitri]

Hi,

I don't have any experience with md raid.

But with lvm it sometimes happens that when you have one volume that's
spread over 2 disks and another one that's only 1 disk. It will
sometimes happen that only 1 disk spins down and then after some time
the other one will spin down or that only one spins up instead of 2,
depending on the volume that's being accessed. This never gave any
problems for me.

I think lvm is part of the md driver (don't shoot me if I'm wrong), so
I think you should be safe.

Please share your experiences.

Regards,
Dimitri

>  signature.asc
> < 1KViewDownload