Drive questions (SCSI involved)

[Demon-Xanth]

On a card with both a 50 and a 68 pin SCSI connector, does attaching drives on the 50 pin (being only Ultra, or plain SCSI2) slow down U2W devices on the 68 pin?

Also, what speed differences will I see between the following configurations:

20GB IBM 34GXP
60GB Seagate Barracuda ATA IV
9GB Seagate Barracuda 9LP
2x9GB Seagate Barracuda 9LP in a stripped RAID array (Adaptec AAA-131U2 card)

In this case, price is no object since they'll all be in one system regardless.

 

[bacillus]

if the card is an adaptec U160 one then you should see no slowdown!

 

[Demon-Xanth]

The card's a U2W RAID card with 2MB cache

card info

 

[Demon-Xanth]

^

 

[Need4Speed]

Connecting SCSI Devices
The AAA-131U2/133U2 supports both internal and external SCSI devices. Each channel supports up to 15 SCSI devices?Ultra2 SCSI devices alone or a combination of Ultra2 and Ultra SCSI devices. Using Adaptec SpeedFlex ? technology, the 50-pin narrow connector on Channel A supports up to seven Fast/Narrow SCSI devices without affecting the performance of Ultra2 devices connected to Channel A internal and external Ultra2 connectors. Before connect-ing devices to the AAA-131U2/133U2, be sure to also review Setting
Up SCSI Devices on page 2-6.

RTM

 

[Demon-Xanth]

Damn, I missed that one. Thanks for pointing it out (yes, I had actualy gone through the manual)

 

[Need4Speed]

No problem. I assumed you must have missed it, since you went through the trouble of finding the website...thats why I politely said RTM and not RTFM