Mehdi, Windows can "allocate" a file in NTFS without having to write data into it. The Linux/Unix (including AIX) platforms have to write data into a file in order to create it to the desired size. You can actually see the progress of the file being created on Unix - cd into the directory in which the file is being created as result of your define volume TSM command, then do repetitive ls commands to see the progress.
Joerg Pohlmann 250-585-3711 -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of Mehdi Salehi Sent: Tuesday, March 02, 2010 01:25 To: [email protected] Subject: [ADSM-L] define volume takes a long time in AIX Hi, TSM volumes can be defined instantly in TSM server for Windows but take several minutes in TSM for AIX. What could be the reason? - AIX version is 5.3 with latest patch on both platforms - volume is defined on a single internal physical disk (no SAN, no RAID) - windows disk is a 500GB SATA, AIX disk is a 36GB 10K rpm SCSI drive - windows can define a 100GB volume in one second, but AIX defines a 30GB one in some minutes! Thanks, Mehdi
