> Tivoli may be looking at this for futures? As a matter of fact they will. Version 5.3 (expected 4th. quarter) will address several disk-only implementation enhancements. Kindest regards, Eric van Loon KLM Royal Dutch Airlines
-----Original Message----- From: Rushforth, Tim [mailto:[EMAIL PROTECTED] Sent: Thursday, June 17, 2004 17:05 To: [EMAIL PROTECTED] Subject: Re: Tier'ed library Using sequential-access File volumes with TSM seems to result in a lot of file level fragmentation. We are doing a mini-pilot with 25GB File volumes for the storage pool volumes for some nodes. These volumes end up very fragmented (some of the files are in 9000 fragments). This could have performance implications. Tivoli may be looking at this for futures? A VTL may address this. I did a quick restore test of a node as follows: 36 GB restored 219,170 objects On fragmented File Volumes: Time 34.6 minutes 17.7 MB/sec After defragmenting the file Volumes: Time 21.9 minutes 27.9 MB/sec It was not a controlled test as it was run on a production server so there could have been other things affecting the two tests. TSM Server 5.2.2.4 on Windows 2003 TSM Client 5.2.2.9 on Windows 2003 Tim Rushforth City of Winnipeg -----Original Message----- From: Tab Trepagnier [mailto:[EMAIL PROTECTED] Sent: June 16, 2004 8:48 AM To: [EMAIL PROTECTED] Subject: Re: Tier'ed library Milton, Thanks for the info. I briefly looked at Sepaton, but I had no idea they were that inexpensive. I will probably give them a second look. But one thing that I'm struggling with is "why a VTL?" Between random-access DISK volumes and sequential-access FILE volumes what does a VTL buy me that I couldn't implement using those two volume types in TSM? Thanks. Tab Trepagnier TSM Administrator Laitram, L.L.C. ********************************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. **********************************************************************