I'm responding only to the mainframe issue:

-TSM does not understand mainframe legacy filesystems (the legacy
filesystems contain the vast majority of mainframe files in most sites).

-Mainframe backup software does not understand UNIX or Windows filesystems.

So to backup mainframe legacy filesystems, you need mainframe backup
software.

However, it gets really confused because:

a)You can run a TSM server on the mainframe, to back up your Windows and
Unix servers..

b) There is a component of z/OS called OSS, or Open System Services
(actually I don't know what it's called these days, the name keeps changing)
, which uses a unix-style filesystem.  To back up individual files for that
filesystem ONLY, there is a TSM client.  So you can use your Windows or Unix
or mainframe TSM server to backup the mainframe unix-style filesystem.  But
not mainframe legacy filesystems.

c) Also, it's not uncommon to have the mainframe backup software sharing the
same tape library with open-systems TSM.  But they aren't sharing backup
duties.



On Wed, Mar 25, 2009 at 1:34 PM, Gill, Geoffrey L. <GEOFFREY.L.GILL AT saic DOT 
com
> wrote:

> About 4 years ago some people here decided to bring in Netbackup. No
> good reason at the time but everyone involved is making it sound as if
> TSM was the problem. In a meeting we had yesterday to discuss moving
> everything to TSM they are now making it sound like they can't get rid
> of it, no technical explanations of course. Some are arguing we should
> move the other way or that most companies use more than one system and
> so should we. Needless to say everyone in the room, besides me, just
> loves netbackup.
>
>
>
> I'd like to ask these questions to the group if you don't mind. Feel
> free to add whatever you like if you think there is a better question I
> should be asking
>
>
>
> 1.      What are you using in your infrastructure besides TSM?
>
>
>
> 2.      If you have more then one is it because TSM can't fit that
> situation?
>
>
>
> 3.      Would you prefer to have one? Which one and why?
>
>
>
> I also have a separate question for those with mainframes. I have
> absolutely no knowledge when it comes to TSM and the mainframe and would
> like someone to tell me how TSM and the mainframe integrate together.
> Our mainframe has some sort of backup software, I assume integrated with
> the operating system, so back things up. I was wondering if the
> mainframe can back up to the TSM server or if you must run a TSM server
> on the mainframe and back it up locally.
>
>
>
> Thanks all,
>
>
>
> Geoff Gill
> TSM Administrator
> PeopleSoft Sr. Systems Administrator
> SAIC M/S-B1P
> (858)826-4062 (office)
>
> (858)412-9883 (blackberry)
> Email: geoffrey.l.gill AT saic DOT com
>
>
>