Re: Disk RAID/mirroring/hot spares, etc

[rob@xxxxxxxxx]

1.  Hot spare shouldn't be an issue.  I'll leave that up to DrFranken.

2.  I'm not too impressed with virtual tape.  Especially if your LTO is on 
a separate bus already.  If your LTO isn't, evaluate that possibility. 
That can often speed up your backup significantly.

3.  Fun.  But I think that will involve the SPENDMONEY command.  I think 
you may be diving into mirrored lpars and not mirrored ASP's here.  6.1 is 
a good start to reduce your expense but power 6 combined with 6.1 really 
reduces your expense with guested lpars.  You may want to talk to your BP 
about a HA solution.  But once you go down that path you may start 
thinking why a separate lpar and why not a separate box for not only the 
backup elimination window but also the high availability option?  See how 
that would snowball?  There's also some care and feeding of your HA 
solution.  Autonomics reduces this but there's still some.


Rob Berendt