SCSI type compatibility

[Stephen Andreassend]

Hi,

Can an Ultra SCSI 3 disk (Seagate ST318437LC)
go on the same SCSI bus (c720 GSC built-in Fast/Wide SCSI Interface) as an Ultra SCSI Wide disk (SEAGATE ST19171W)?

Will there be SCSI resets?

Thanks,
Steve

[Naveen Shetty · Accepted solution]

Hi,

No..! It won't be possible to use a Ultra3 SCSI Disk on FWD SCSI Bus.

With Regds,
Naveen Shetty.

[Clemens van Everdingen]

Hi,

No this won't work ! Sorry.

C.

[Stephen Andreassend]

OK so the next question is, how can I make use of these 3 Ultra SCSI 3 disks I have?

I have 2 standard K570 servers with 1 internal Ultra Wide SCSI each on the forementioned bus.

Thanks,
Steve

[Clemens van Everdingen]

Hi,

see this link to all the info regarding these disks.
Also the installation manual might help you out.

http://www.seagate.com/support/disc/specs/scsi/st318437lc.html

C.

[Stephen Andreassend]

Thx, thats where I get my info from also, but I need to know what to do with them specifically in the HP world.

Basically I have 2 K570s, 2 K260s, 1 K360, and 1 C240 and I want to make use of these 3 disks I have been given.

[Michael Lampi]

You have several options with your Seagate Ultra-160 SCSI drives:

1. Connect to any Single Ended Narrow bus using an appropriate 68 to 50 SCSI cable. Low performance, but it will work.

2. Using a Fast-Wide-Diff to LVD SCSI converter, you can connect the drives to any of your HP F/W/D SCSI buses. Moderate performance, fairly universal application among your systems.

3. Install an Ultra-2 or Ultra-160 SCSI controller in your system. This will work on your systems with empty PCI slots, and provide visibly faster performance than any of the other options.

I would strongly recommend #3. The cost of such an interface board is not very high, and is fairly comparable to the F/W/D converter of #2.