1.

3.2 and below would be SSO.

3.4 and above would be San Media License. It replaces the SSO functionality.
It provides locking for multiple machine writes to a single tape drive (IE:
multi-hosted drive support). You don't get multi-hosted drives with a
regular Media License.

2.

It's totally different. Conceptually at least. In a SAN, you're configuring
how many drives a machine can use at one time, not how many drives are
actually cabled to the machine (because all would be visible by the
machine). Its a way of controlling load balancing in software. If you have
two machines & ten drives, you can configure them as: 5/5 or 7/3 or 9/1. It
all depends on how much each machine is backing up.

3.

No, I think SSO is still bantered around some, but a SAN Media license is
the same thing for 3.4 & above.


4.

Regular media server = all of them.
San media server = all of them.

Course you'd actually be able to do backups to them correctly with a SAN
Media server license. ;)  You don't need SSO for this config if you're
getting 3.4 or 4.5.

-----Original Message-----
From: Charlie . [mailto:maver3640 AT hotmail DOT com]
Sent: Thursday, September 27, 2001 2:32 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] SAN media vs "regular" media & SSO


Hello,

1. Could someone please explain the difference between a SAN media license 
and a "regular" media license. My understanding is that a media server, by 
default, can run backups (of itself or other clients) using a SCSI or FC 
interface to the tape drive. So what does a SAN media server license give 
me? Is it just saying it is "SAN compatible"?

2. If it is different, what do I have to do different in configuring a SAN 
media server as opposed to a regular media server?

3. SSO gives me the option to use all any of my drives in my SAN with any of

my media servers - right? Would I still need an SSO license with a SAN media

server license?

4. If I don't use SSO, how many drives would I be able to see and
use from my media servers?

FYI - I am working with a SAN environment, with 2 libraries with 26 drives 
total, HP master server, HP and NT clients. Most of the HP and NT clients 
would be "SAN" media server.

Thanks
Charlie


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