Thanks for the responses, but I have a follow up question. Perhaps, a more fundamental question is, how can I determine if compression is enabled on the 3494? Or, is it ON by default?
Mahesh >>> [EMAIL PROTECTED] 06/01/02 11:04AM >>> Yes, where cartirdge is FULL its estimated capacity is the real capacity. And if you have some files already expired the percentage will be less than 100. In other words if tape fills and then data on it expire it will reach 100% and later decrease. If expiration happens before tape gets filled you will never get 100%. Zlatko Krastev IT Consultant Please respond to "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] cc: Subject: Re: Compression If a cartridge is FULL, does the estimated capacity include files that have been expired on that cartridge? E.g. assuming a tape takes time to fill up, it's possible some of the files on that tape may expire before the tape reaches FULL status. It's also unlikely the space has yet been reclaimed. Once the tape reaches FULL status does the estimated capacity include those files that have expired? Regards, Gerald Wichmann Senior Systems Development Engineer Zantaz, Inc. 925.598.3099 (w) -----Original Message----- From: Bill Boyer [mailto:[EMAIL PROTECTED]] Sent: Friday, May 31, 2002 1:21 PM To: [EMAIL PROTECTED] Subject: Re: Compression Divide the amount of data on your FULL tape volumes by the native capacity. Here's a sample SQL statement. You'll need to filter it for your tape storagepools and only FULL volumes. select volume_name,cast(est_capacity_mb/xxxx as decimal(3,1)) from volumes Use these values for xxxx: 3590B 10240 (10GB native) 3590E 20480 (20GB native) Extended length cartriges double the value. Bill Boyer DSS, Inc. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of Mahesh Tailor Sent: Friday, May 31, 2002 3:01 PM To: [EMAIL PROTECTED] Subject: Compression Hello! Is there any way to find out how much compression I am getting on a IBM 3494 library? Thanks. Mahesh
