Installation and User's Guide

Set Accesssnapshotcachelocation, snapshotcachesize, snapshotfsidleretries, snapshotfsidlewait,snapshotproviderfs, presnapshotcmd, postsnapshotcmd.Note:1. You can use the include.fs option to set snapshot options on a per file systembasis.2. Use the snapshotcachelocation option to relocate the cache if necessary. You canspecify a snapshotcachelocation for a specific drive using the include.fs option.3. Open file support is only available for local fixed volumes (mounted to eitherdrive letters or volume mount points) formatted with FAT, FAT32 or NTFS filesystems. This support includes SAN-attached volumes that meet theserequirements.4. If the client is unable to create a snapshot, failover to non-OFS backup occurs;the same backup support that would be done if the OFS feature was notconfigured.5. To enable open file support in a cluster environment all systems in the clustershould have the OFS feature configured.Adaptive subfile backupsIf you perform a backup over a network device with limited bandwidth, such aswith a modem, you can reduce network traffic by using the subfilebackup option.In order to use this feature, you must first specify the adaptive subfile backupoptions during a normal backup.Associate a local snapshot with a server file spaceUse the snapshotroot option with the selective command in conjunction with anindependent software vendor application that provides a snapshot of a logicalvolume, to associate the data on the local snapshot with the real file space datathat is stored on the Tivoli Storage Manager server. The snapshotroot option doesnot provide any facilities to take a volume snapshot, only to manage data createdby a volume snapshot.The set access command gives users at other nodes access to your backup versionsor archived copies.You can also use the set access command to give users at other nodes access toyour backup images.You can give another user access to a specific file or image, multiple files orimages, or all files in a directory. When you give access to another user, that usercan restore or retrieve your objects. Specify in the command whether you aregiving access to archives or backups.When a node is exported to another Tivoli Storage Manager server, the access rulescan change on the importing server. If an access rule is applied to all file spaces onthe exporting server, the access rule on the importing server is restricted to onlythose file spaces that are imported. The file spaces are restricted in the access ruleon the importing server for security reasons. Additionally, the access rules do notrecognize the first occurrence of a wildcard character in the file specification whenyou restore or retrieve. This means that if you restore or retrieve with a wildcardcharacter in the file specification, subdirectories are ignored.Chapter 13. Using commands 657