Try this in your dsm.opt file I have just copy and paste from the help menu in dsmc (C:\>dsmc help)
3.102.1 Regulating backup and archive sessions When you request a backup or archive, the client can use more than one session to the server. The default is to use a maximum of two sessions; one to query the server and one to send file data. The client can use only one server session if you specify a resourceutilization setting of 1. When you request a backup or archive, the client can use more than one session to the server. The default is to use a maximum of two sessions; one to query the server and one to send file data. The client can use only one server session if you specify a resourceutilization setting of 1. The client is also restricted to a single session if a user who is not an authorized user invokes a UNIX or Linux client with passwordaccess=generate specified. A client can use more than the default number of sessions when connecting to a server that is Version 3.7 or higher. For example, resourceutilization=10 permits up to eight sessions with the server. Multiple sessions can be used for querying the server and sending file data. Multiple query sessions are used when you specify multiple file specifications with a backup or archive command. For example, if you enter the following commands and you specify resourceutilization=5, the client might start a second session to query files on file space B. inc /Volumes/filespaceA /Volumes/filespaceB Whether or not the second session starts depends on how long it takes to query the server about files backed up on file space A. The client might Best Regards Christian Svensson Cell: +46-70-325 1577 E-mail: [email protected] Skype: cristie.christian.svensson ________________________________________ Från: ADSM: Dist Stor Manager [[email protected]] för Robert Ouzen Ouzen [[email protected]] Skickat: den 19 juli 2009 13:27 Till: [email protected] Ämne: Re: SV: Deduplication number of sessions Hi Christian The particular server I tried to backup is a Windows client with at least 10 volumes !!!! I espected to open at least 10 sessions tsm> i -su=yes Incremental backup of volume '\\mpeg3\d$' Incremental backup of volume '\\mpeg3\f$' Incremental backup of volume '\\mpeg3\g$' Incremental backup of volume '\\mpeg3\h$' Incremental backup of volume '\\mpeg3\i$' Incremental backup of volume '\\mpeg3\j$' Incremental backup of volume '\\mpeg3\k$' Incremental backup of volume '\\mpeg3\l$' Incremental backup of volume '\\mpeg3\m$' Incremental backup of volume '\\mpeg3\n$' Incremental backup of volume '\\mpeg3\o$' Incremental backup of volume '\\mpeg3\p$' Incremental backup of volume '\\mpeg3\q$' Regards Robert -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of Christian Svensson Sent: Sunday, July 19, 2009 2:20 PM To: [email protected] Subject: [ADSM-L] SV: Deduplication number of sessions Hi, That is probably because you only have 2 or 3 partitions on your server you try to backup. TSM can only stream 1 session per local partition on the client. Best Regards Christian Svensson Cell: +46-70-325 1577 E-mail: [email protected] Skype: cristie.christian.svensson ________________________________________ Från: ADSM: Dist Stor Manager [[email protected]] för Robert Ouzen Ouzen [[email protected]] Skickat: den 19 juli 2009 12:40 Till: [email protected] Ämne: Deduplication number of sessions Hi to all I am testing now Data Deduplcation wit Data Domain , my TSM server version is 5.5.2.0 . In my pilot environment I have node with the maxnummp option of 20 and still the backup open only 3 sessions. The Device type of the device class is FILE with mountlimit of 20 Any ideas ??? Regards Robert
