The documents say you are supposed to NOT have SAN and tape
devices running on the same HBAs. 

        I would expect you would use 2 HBAs to connect to the SAN and 2
to connect to the tape drives. 2 cards have more than enough bandwidth
to support the 4 LTO3 drives.

Ben
 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Stef Coene
Sent: Tuesday, February 08, 2005 1:03 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Number of HBA's

Hi,

For a setup with:
- 4 x LTO3 drives in a IBM 3583 library
- 1 oracle database server: 40GB/1hr archives that needs to backuped
(AIX
LPAR) over the SAN
- 1 TSM server (AIX LPAR)

What with the HBA's?  Is it needed to split the tape and disk activity
and to put 4 HBA's in the oracle DB (2 HBA's for disk activitiy and 2
for tape)?

Idem for the TSM server.  2 HBA's or 4 HBA's?


Stef