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Re: Advice sought on moving to AMD64



Lennart Sorensen wrote:

I would prefer a hardware SATA raid like the 3ware cards if doing more

than 2 drives.
So, why not get SCSI that supports the same thing?

Lastly, all SATA drives have either IDE or SCSI interfaces anyways before they go to the SATA channel.

No quite a few new SATA drives are native SATA and are not IDE or SCSI
internally.
Ah, didn't know about that one actually, havn't researched SATA drives being manufactured in a while.

The scsi cable shared by all scsi drives in a system is fairly fragile,
and loosing it looses all drives, and in some cases a drive failure
takes out the bus too.  With a cable per drive that problem at least
goes away.

Thats what SCA is for. Easy to adapt into any SCSI system even if it does not defaultly support SCA with a $5 adapter. I've never had a bad drive ever take down the channel.

 It doesn't solve the issue of what happens if the controller
dies, but scsi has that issue too unless running multiple controllers on
the bus (which is an advantage of scsi very few people take advantage
off.  Maybe SAS will change that).

I used to be a scsi fan, and built machines that used scsi instead of
ide, but not anymore.  SAS I can see a point in, plain scsi I can't.
So you've got my interests in SAS. What kind of system is it exactly? Targeted market? Compatibility? Expected release? I'm thinking a search on google for 'SAS' would give me a lot of what I'm not looking for. lol


Nathan
----------------
Code is poetry.



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