Re: Create More LUN in ASP

[Roberto José Etcheverry Romero <yggdrasil.raiker@xxxxxxxxx>]

I dont have experience on blades, but i can tell you of a client of
mine who had a 520 with 14 70gb drives and a BP sold them a 720
express with 2 600Gb SAS drives... It was pretty funny to see how the
client threatened the BP when they noticed the abysmal perfomance they
had with the shiny new p7... A few weeks later the BP filled the
machine with 600GB drives as compensation, dont know if 8 drives == 14
drives but at least it was better than 2 drives mirrored.
In a blade you just CANT add drives (unless the Blade IO Expansion
works for the Power Blades too) so you would be forced to use some HBA
to access an storage and that is not small change unless you have an
storage with unused space.
Also, are those drives mirrored or protected in any way?

Best Regards,


On Sun, May 6, 2012 at 5:55 PM, Karl Lauritzen <klauritzen@xxxxxxxxxx> wrote:
> roberto thanks for your help. Here is wrkdsksts to help explain.
>
> Size % I/O Request Read Write Read Write %
> Unit Type (M) Used Rqs Size (K) Ross Ross (K) (K)
> Busy
> 1 6B22 668106 58.4 90.3 6.1 9.7 80.6 7.2 6.0 4
> 2 6B22 381774 6.3 .0 .0 .0 .0 .0 .0 0
>
> I think adding more disks will help with IO my IT manager thinks it will
> make most of the 600g go unused so he wants to move our main home written
> application library to an ASP2 with more disk. Or do we just leave it as
> is and not get the best performance.
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