Good day everyone,
Thank you for your input.
After careful review of my config I found a typo in my opt file and my data was 
being sent to an undersized STG and in turn was writing directly to tape. After 
correcting the include statement the throughput is where it should be for my 
primary site to primary site data transfers. ( 1gb between the two sites).

However, that does not address my remote sites. My remote sites are multiple 
TBs of data.
Does anyone have any suggestions of how to most efficiently backup/recover a 
large remote site with limited bandwidth ?

One alternate method we have used in the past, for the continental US, is 
restoring the data locally to the site the TSM server resides then copying the 
data to disks and shipping them overnight to the location. A little cumbersome 
and shipping fully populated disks is a concern but it is fairly efficient.

Any suggestions would be appreciated.

Thanks,
Duane



From: Ochs, Duane
Sent: Monday, August 24, 2009 11:54 AM
To: 'ADSM: Dist Stor Manager'
Subject: Large disk concerns/alternatives ?

Good day everyone,
I'm looking for some workable suggestions for larger lun backups.
I'm talking 1.5tb and larger lun sizes. I have a number of remote sites that 
have large quantities of hi-res image files and they need an offsite backup 
solution. Usually we are notified before the disks go into production and the 
backups grow as the disk is populated.
Normally not a big deal. Now we are in the middle of a large conversion for 
many remote sites which will require a full backup for all of the sites. And 
each has in excess of 6 tb of images. In addition we are also migrating a 
number of rogue sites to TSM which also have in excess of 4tb locally.

I tried a test and ran one disk as a full over a 1gb pipe to 2tb of TSM 
diskpool on Sata disks. It has been running for 3 days. Not only is it not 
acceptable in a real DR scenario (Currently we restore to the same site as the 
TSM server then move data back in order of importance),but,  it will also take 
weeks before I can safely say we are back to being fully backed up.

Other than local backups for each site... has anybody come across a similar 
scenario and care to offer some advice.

Some specifics: I have 3 TSM servers (AIX) with either a L700 or a T950 
library.  No data is backed up locally. All data is sent over the network to a 
remote TSM server.

Thanks,
Duane