Wanda,
I'm suprised.....
I didn't tried it for a long time, but i can remember that the second
restore session was not allowed... TSM said something about "restartable
restore session already in progress" or something like that. Is that true?
Or is that just a memory leak.
I guess you can come in big troubles when you do a multiple restore of the
same filespaces. How do you handle that? Don't handle that and restore FS's
seperatly?Or isn't it a problem at all?
I'm still suprised.....
Maurice van 't Loo
The Netherlands
----- Original Message -----
From: "Prather, Wanda" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, August 16, 2001 5:56 PM
Subject: Re: Disaster Recovery - Question
> Not entirely true - you can start multiple restore sessions for a client.
>
>
> Doesn't make sense for small clients with only one disk, but for your
larger
> NT clients with multiple disks, or your AIX clients with multiple file
> systems, there is no reason at all not to open multiple TSM windows and
> start multiple restores, up until you exceed your throughput capacity.
>
> That's one of the reasons some people collocate by file space...you can
> restore the file spaces in parallel.
>
> -----Original Message-----
> From: Maurice van 't Loo [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, August 15, 2001 5:52 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Disaster Recovery - Question
>
>
> Don't forget that you restore serial, for one client there is only one
> restore session, so also 1 tapedrive is needed.
> You can save time when you can use collocation, but it takes more tapes;
up
> to 90 tapes in your case.
>
> So, you can only save time when you need to restore more than 6 clients at
> the same time.
> An other help could be to use the money for the 14 drives to buy disks and
> make a very large diskpool, so you can use caching. All data goes to tape,
> but stays also in the diskpool, when you need a restore, this will save A
> LOT of time when you have enough network bandwidth.
>
> Good luck,
> Maurice van 't Loo
> The Netherlands
>
> ----- Original Message -----
> From: "Pearson, Dave" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, August 15, 2001 10:32 PM
> Subject: Disaster Recovery - Question
>
>
> > Hi ,
> >
> > I have a couple of questions about your Disaster Recovery Plan,
> > How much parallelism does TSM recovery have. How many tape drives do
you
> > use for this plan?
> > We have 6 tape drives (3494 tape library with 3590 tape drive). We have
> > about 90 clients on TSM (AIX, NT, SUN)
> > Could we use 20 tape drive to recover all the clients in a shorter time
> then
> > just have 6 tape drive and take a looong time to do the recovery?
> >
> > Is anyone using Lanless backup on a server with the fibre network? How
is
> > this working for you?
> >
> > Thanks for you help
> >
> > Dave Pearson
> >
>
