10-21-2003 11:46 AM
I have several Sun servers each with two Qlogic HBAs. The two HBAs in the hosts are attached to separate fabrics (Brocade Silkworm 3800s). The disks are Hitachi and the servers are in zones for the appropriate LUNs. Now we are ready to add tape drives from STK into the mix. We were planning to use the same HBAs for both disk and tape access. We are planning to use Veritas Netbackup.
10-23-2003 12:21 PM
The way that rslinger zones is actually pretty good practice and also fairly common. The single server zones with Windows is mainly due to the fact the most versions of windows out there are not SAN aware. This means, they will go out and try to grab anything they see and think it is their disk (or tape).Keeping disk and tape separate via zones is also good practice.
10-29-2003 08:54 AM
We use separate HBAs for tape and disk where the vendors of the tape or disk are different. Otherwise we get support problems. As we use StK tapes but not their disks, we almost always have tape on a separate HBA. Also you cannot set the driver parameters ideally for both on one HBA. Server vendors also do not like you to buy 3rd party HBAs - worst case you may find server vendor and storage vendor have no HBAs they both support We usually zone one-HBA per zone to multiple targets. But on EMC Celerra we are using one zone per target tape drive. Seems to help, but unusual.
11-12-2003 07:10 AM
It is very interesting reading all the associated mails. Many ways to skin a cat, I totally agrre with all the mails, because it really does depend on your setup, however...Sorry
04-15-2007 07:59 AM
I think it's safe to say that best practices dictate that disk and tape not be mixed on the same HBA. However, in most cases, it will work - we've got our NetBackup master/media server using the same HBA for both but our two newer media servers have the traffic on separate HBAs. We've got the new HBAs for our master on our TODO list though.