Hello there,

Whilst I may not have particularly good answers for you, I nonetheless had to 
respond as no on else has so far, even if only to welcome you to the board. I'm 
pretty new to it myself, and it looks so far as though it may be improved by 
more people answer, so here I am :)

You ideas all sound very solid to me - I also am a Linux admin with some 
Solaris exposure. The general architecture of your idea sounds totally fine, 
and if LSI has the RAID drivers you should be all set. Do verify that the 
drivers actually work with the card in RAID mode and not just in non RAID mode, 
if you want to use hardware RAID - of course there is really no need to though 
as you can use raidz on the storage pool and use a zpool mirror on the root 
volume it you like - so no hardware RAID is needed. 

As for the SAS and SATA drives being used simultaneously on the same controller 
- that is a great question! I've never tried that myself, but I expect that it 
would most likely work fine.  Judging from Google results, it appears the 
general consensus is definitely yes: 
http://storageadvisors.adaptec.com/2005/11/01/sas-and-sata-in-the-same-enclosure-%E2%80%93-say-it-ain%E2%80%99t-so-joe/

I doubt this will have much of anything to do with Solaris really - as long as 
the controller presents the mix as available block devices I don't think the 
driver will have an issue - just my opinion though. 

However, just because you can mix them, you might see a pretty good performance 
hit mixing your 15,000 RPM SAS drives with 7,2000 SATA drives in the same 
raidz, but if the performance is still okay to suite your needs, then no big 
deal. I'd love to see some benchmarks for mixed and SAS only if you have a 
chance to do so.

In any event - welcome to the board and good luck in your storage box!

Cheers,
VegaBlue
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This message posted from opensolaris.org

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