Look out for the network speed on this!  100 Mb is 15 GB/hr.  1 GB is 50
GB/hr.  So, if you get 4 sessions going (4 nics on TSM) you could crank 200
GB/hr on the 1 Gb network.

Your milage will vary!


Fritz Hayes 

<snip>
> Subject: Re: bACKING UP A SERVER WITH 500gb
> 
> We are looking at the same issue. In our case, we need to perform IMAGE
> backups of 2-4 Terabytes of data, weekly.
> 
> We are looking at LTO2 (200GB native per cartridge).
> 
> Saw this blurb:
> 
> "The Ultrium LTO2 is the ideal choice for modern data centers where the
> backup window is shrinking, backing up 400 GB in less than two hours. This
> device has 60MB/s data transfer rate (compressed) with Data Rate Matching
> to
> accommodate host speeds between 10 MB/s and 30MB/s. LTO2 allows backup of
> 216.0 GB/hour (compressed). "
> 
> Of course this is a sales pitch (not mine, the vendors).
> 
<snip>
>         Subject:        bACKING UP A SERVER WITH 500gb
> 
> 
> i am using using tsm with primary disk storage pools (zos 3390's) and
> secondary storage pools
> 3590's
> 
> new server i installed has a file that is over 300gb's, changes daily
> i have had to exclude the folder that contains the file till i can find
> a storage medium that will have enough capacity
> 
> what are other folks doing to backup this amount of data
> 
> 
> Tim Brown
> Systems Specialist
> Central Hudson Gas & Electric
> 284 South Ave
> Poughkeepsie, NY 12601
> Phone: 845-486-5643
> Fax: 845-486-5921