Hi

What kind of server is it?

If it's a fileserver, you could use HSM to minimize restore time.

Another would be to either try to optimize performance, perhaps using
journal based backup to try to increase backup, and collocation to try to
optimize restore time. Or to build a backup backbone using for example
copperbased 1Gb ethernet. This is a fairly cheap solution.

Anyway, the best way to optimize performance would be to use
HSM(DiskXtender TSM). This way, you wouldn't have to restore files already
migrated to tape, only the stubfiles, which normally are 1-2% of migrated
information.

Normally about 40-60% of data on a fileserver could be migrated to tape.
And, the information stored on disk wouldn't grow that fast.

Best Regards

Daniel Sparrman
-----------------------------------
Daniel Sparrman
Daniel Sparrman
Exist i Stockholm AB
Bergkällavägen 31D
192 79 SOLLENTUNA
Växel: 08 - 754 98 00
Mobil: 070 - 399 27 51


                                                                                
                                   
                    Karel Bos                                                   
                                   
                    <Karel.Bos@NU        To:     ADSM-L AT VM.MARIST DOT EDU    
                                          
                    ON.COM>              cc:                                    
                                   
                    Sent by:             Subject:     Large server restore 
time?                                   
                    "ADSM: Dist                                                 
                                   
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Today I received a request to back-up a win2000 fileserver. They will start
with 200 gig. Based on servers we currently host I predict this server to
store 8755028 files and 756095 mb on the TSM server.

The TSM server is version 4.1.3 and runs on a 1gig 2 cpu AIX machine. The
library is a 3584L32 from IBM with 10 scsi lto drives. The TSM client will
be version 4.2.x. The network is 100mbps ethernet (which will not be THE
problem).

Smaller fileservers have a poor restore time (>26 hours), so this will
become a disaster.

Is there anyone out there who has something like this AND can keep the
restore time less than 24 hours (tested!). If so, tell me how, please.

Thanx,

Karel Bos
NUON ICT
Holland