What's compression set to? I know that has other implications, also. Look at the makesparsefile option for restore.
"Tivoli Storage Manager backs up a sparse file as a regular file if client compression is off. Set the compression option to yes to enable file compression when backing up sparse files to minimize network transaction time and maximize server storage space. " Thanks From: "Edmund R. MacKenty" <ed.macke...@rocketsoftware.com> To: LINUX-390@VM.MARIST.EDU Date: 07/21/2010 04:58 PM Subject: Re: Files on disk Sent by: Linux on 390 Port <LINUX-390@VM.MARIST.EDU> On Wednesday 21 July 2010 17:48, Dave Jones wrote: >Does that imply then that a TMC backed up sparse file could not be >restored to the same device it came off of? Would TMC attempt to restore >all 26G? I would expect so. If it doesn't know enough to preserve the sparseness of a file as it backs it up, I doubt it would be making a file sparse again upon restore just because some blocks contain all zeros. I'd look for some configuration option that makes it aware of sparse files. - MacK. ----- Edmund R. MacKenty Software Architect Rocket Software 275 Grove Street · Newton, MA 02466-2272 · USA Tel: +1.617.614.4321 Email: m...@rs.com Web: www.rocketsoftware.com ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ----------------------------------------- Please consider the environment before printing this email and any attachments. This e-mail and any attachments are intended only for the individual or company to which it is addressed and may contain information which is privileged, confidential and prohibited from disclosure or unauthorized use under applicable law. If you are not the intended recipient of this e-mail, you are hereby notified that any use, dissemination, or copying of this e-mail or the information contained in this e-mail is strictly prohibited by the sender. If you have received this transmission in error, please return the material received to the sender and delete all copies from your system. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/