RAID: 4 x 15.3 Cheetahs on ATTO UL3D or use 320 box?

Santilli

Hairy Aussie
Joined
Jan 27, 2002
Messages
5,278
Hi
I'm getting ready to reconfigure my computer and here is my problem:
I don't know which array would be better for speed.

I've got 4 15.3's that I boot from using the Adaptec 21010S card, that raids the two 320 motherboard slots. Also attached to that is a 5 drive SCA box, currently without drives, that works on one channel.

The drive setup is getting about 80 mb/sec with the adaptec card, and, I have no doubt after talking to adaptec, that it's the card limiting the raid preformance. Same 4 drives would push 110 mb/sec on the ATTO UL3D card.

Now, would I be better off moving the array to the dual channel ATTO card, and booting from that card, or buying a newer generation drive, putting it in the SCA box, and using it, or a couple of them, to boot on one channel of the Adaptec card?

I think I just answered my own question. Since the SCA box works through the onboard scsi channels, and the Adaptec card works on those channels, to get maximum data transfer rates, I'll have to pull the adaptec raid card.

I could boot from one, 15.4 cheetah, in the SCA box...

Sounds like the best solution, for speed, is to use the array on the ATTO card, unitl as such time a single scsi drive exceeds 110mb/sec.

Card might be slightly faster in a PCI-X slot, since the 110 mb/sec was in a 32/33mhz pci slot.

What do you guys think of 212 for a 146 gig 10k Seagate Cheetah for storage?

s
 

Santilli

Hairy Aussie
Joined
Jan 27, 2002
Messages
5,278
I think I actually have one of those, somewhere: :mrgrn:

http://www.supermicro.com/products/motherboard/Xeon/E7505/X5DA8.cfm

PCI Expansion • 1x 64-bit 133/100/66MHz PCI-X (3.3V) slot
• 2x 64-bit 100/66MHz PCI-X (3.3V) slots
• 2x 32-bit 33MHz PCI-X (5V) slots

:mrgrn:

ATTO UL3D, 2906, 29160N , and Sonnet Trio sort of filll em up fast.
Hope to pull the 2906, or did I do that already?
Yes, I finally got a decent scsi cable that works with the pin down, supermicro designed motherboard connector. It's going to be a full, pull the whole darn thing apart, and recable, pretty soon. Have to install new heatsinks, quieter fans, new floppy, and redesign the array, or boot of a new 15.4, and need storage, like a refurb 146 gig 10k Cheetah, or two...

s
 
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