Re: Virtual disks for an i partition

Rob,

We will likely just make the LS disk bigger at that point. Especially for the VERY low I/O rates we see on iDevCloud there is little reason for them to have all the disks the same size. Remember the size restriction is just for the Load Source, other disks can be all manner of wacky sizes if you feel the need to do that.

With POWER7 I think the smallest physical disk you can purchase today is 139GB. I think if you're migrating older 3 1/2" SAS drives you might have 70s in there yet. So except for the virtual environment the minimum size requirement isn't really a restriction any more.


- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 2/13/2013 2:53 PM, rob@xxxxxxxxx wrote:

I don't know where I was thinking that 35GB was the minimum size for a
load source. From what I've read it is still currently 17GB. Probably
based on that Power 7's implication that 35GB is the minimum. But I'm
hearing that 35GB may be required in the next release.
http://archive.midrange.com/midrange-l/201209/msg00500.html

Looks like your iDevCloud users may need to double disk if they're running
at minimum of 6 drives? But that's a good year off, I reckon.

Yeah, if I had the opportunity to unload/reload three of my guested lpars
I'd spread them out more. The one guested lpar that is nicely spread out
is going to go to dedicated disk when we upgrade to P7+. We just had a
yank on to get that lpar cranking without disrupting the other lpars
before scheduled downtime.

Rob Berendt