I did professional services for that library, the best practices I found
that worked were 32 200GB tapes. Never had any problems at that level.
 Hope that helps.
jeremy

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Thorneycroft, Doug
Sent: Monday, June 12, 2006 3:49 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Quantum DX30 virtual tape library - cartridge sizing

I just had a Quantum DX30 VTL installed last week.
the configured available storage is 5.11 TB.
the installer set the cartridge size to 35 GB. which gave me
136 35 GB dlt carts for a total of 4.65 TB. meaning that almost 500GB of
disk space is unused.

Quantum support suggest using a larger cartridge size, but didn't give any
suggestions for what would be optimal.

Is anyone else using a DX30 (16X400 GB drives)?

If so, what cartridge size are you using, and how many carts did the
system give you?


Doug Thorneycroft
> Systems Analyst
> County Sanitation Districts of Los Angeles County
> 1955 Workman Mill Road
> Whittier, CA 90601
> Tel: (562)699-7411, Ext. 1058
> Fax:(562)695-6756
> www.lacsd.org
>
>
>