Veritas-bu

Re: [Veritas-bu] Drive Multiplexing

2008-07-29 12:53:16
Subject: Re: [Veritas-bu] Drive Multiplexing
From: "Jeremy Finn" <jeremy.finn AT gmail DOT com>
To: veritas-bu AT mailman.eng.auburn DOT edu
Date: Tue, 29 Jul 2008 12:18:40 -0400
Dean and Justin,

Thank you very much for your replies.

I need to use ALL_LOCAL_DRIVES (I think) because there are two clients in my policy. Basically the backup runs like this:

1. - client1: make clones of production file systems
2. - client2: mount clones of client1's production file systems
3. - client2: back up client1's production file systems to local tape drive
4. - client2: back up client1's root volume group over the network.

client1 is only a client, client2 is a client and a media server.

Am I able to specify the pathnames in this configuration, or am I stuck with ALL_LOCAL_DRIVES?

Thanks again,
Jeremy

On Tue, Jul 29, 2008 at 11:30 AM, Justin Piszcz <jpiszcz AT lucidpixels DOT com> wrote:


On Tue, 29 Jul 2008, Dean wrote:

I don't really know why you would be getting 5 streams per mount point. I
have never seen this. But then, I haven't messed with include and exclude
lists like you describe.

Why not just setup a policy with the five mount points you want to backup
specified in it's selection list? With "allow multiple data streams"
enabled, you *should* get one stream per mount point. If I remember
correctly, you will need a NEW_STREAM directive before each mount point in
the selection list. (it's been a while)

NEW_STREAM
/mount_point_1
NEW_STREAM
/mount_point_2
...
etc
With >= 5.1 I do not think this is required anymore.
(e.g. the NEW_STREAM directive is not needed)

With <= 4.5_FPX I think it was required.

But agree with the concept, yup!



Then you can throttle the amount of streams you actually want mlutiplexed to
tape at one time at the schedule level or the storage unit level.

Symantec's advice seems wrong to me. I guess they misunderstood what you are
trying to achieve. Turning off multi-streaming in the policy will mean the
whole backup is a single stream, as you are seeing.

Cheers,
Dean



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