Re: Rép. : Question of a Newbie to POWER Systems

[DrFranken <midrange@xxxxxxxxxxxx>]

I agree with the 3/6. Likely with no RAID card providing cache for these 
drives so I stand by my initial guess that performance of these drives 
very likely a bottleneck.

In addition Mauri also followed up with a requirement to partition his 
machine and do remote copy. Thus the machine as currently configured 
will require some 'more power' so to speak.

OTTOMH the best direction here would be to install VIOS on these drives 
and use Fiber back to the SAN via SVC as he suggested. The SAN can then 
hold the other partitions. The SAN could also be used to mirror those 
partitions remotely solving that piece of the puzzle. More memory will 
be required of course as 8GB isn't enough for VIOS and a pair of IBM i 
partitions, i would start with 32GB there.

This is a Single VIOS solution (i.e. no redundancy) so a VIOS failure 
would take down the entire system. Additional I/O hardware could be 
added to support a second VIOS host however.

    - Larry "DrFranken" Bolhuis

On 3/28/2011 1:34 PM, John Jones wrote:
> Since the OP said
>
> "It contains 3 disks of 140 GB - Which are RAID-1 mirrored totalling 420GB
> effective."
>
> I was assuming it was 3 pairs/6 physical units.
>
>
> On Mon, Mar 28, 2011 at 11:49 AM, Porterfield, Sean<
> SPorterfield@xxxxxxxxxxxxxxxxxxxxxxx>  wrote:
>
> > Since he said RAID1-mirrored, I think it's really 4 drives rather than 3.
> >   If not, that would be the first thing to fix, because a disk is
> > unprotected.
> > --
> > Sean Porterfield
> >
> >
> > --
> JJ
> 4 Out of 3 people have trouble with fractions.