OK, I am guessing the client is already doing compression here and these are J tapes. If that is the case, this would be exactly what could happen. A J tape has 20GB of tape in it on an E drive. If you are already compressing the data you can actually increase the size of the data in when it is recorded on the 3590 drive as it tries to compress. But, I do know all of your configuration particulars and there could be something else here going on.
-----Original Message----- From: Fred Johanson [mailto:[EMAIL PROTECTED]] Sent: Monday, January 14, 2002 4:37 PM To: [EMAIL PROTECTED] Subject: Tape question One of my users has a special project to backup 800 Gb for a few days and then throw it away. Since we've just cleaned the test machine to put up V4R2, I agreed and let him have the test machine for 3-4 days. The machine is configured just like production, in particular the DEVC=TAPE: Device Class Name: TAPE Device Access Strategy: Sequential Storage Pool Count: 7 Device Type: 3590 Format: DRIVE Est/Max Capacity (MB): Mount Limit: DRIVES Mount Wait (min): 60 Mount Retention (min): 2 Label Prefix: ADSM Library: TSMLIB The drive is a 3590-E, which experience shows will hold 50-100 Gb, depending on compression. I put 30 new cartridges into the 3494, whcih should have sufficed him with room to spare. However, what I'm seeing consistently is a tape being marked full at 18.5-18.8 Gb. It appears that all the files are pretty much the same size, and there are lots of them. But what can I do to get more onto a volume???
