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scsi raid card questions

S

sdadept

Limp Gawd
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Joined
Jul 3, 2004
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I'm down to deciding which scsi raid card to use for my server. I plan to buy 2 fujitsu u320 73 gig scsi drives and run them in raid 1 configuratino. Later I plan to upgrade that to a 0+1 array but thats in the future.

Currently I see the lsi 64bit pci-x ultra320 LSI20320RKIT listed at newegg for $115 which seems cheap. Also it says 'single drive' raid 0 and raid 1 support which doesn't make any sense. Does it mean single channel with multiple chained drives? ie, I could use 2 chained drives on the single channel in a raid 1 configuration?

I also see a bunch of adaptec cards.

my question is which of these cards should suit my needs for raid 1 and 0+1 support with u320 and pci-x 64? are there other cards that I haven't mentioned that might be more appropriate?
 
The "Single drive" limitation of that controller means it can create a single RAID volume drive. If I remember correctly, there can be up to 6 physical drives within the logical volume. You can place up to 15 devices on each channel of that controller and any subset of those (up to 6 drives, though) can be part of the RAID volume. The rest will act as standalone devices.

Unfortunately, that card will only support RAID 1 or RAID 0, it will not support a RAID 0+1 volume.
 
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