Installation and User's Guide

Snapshotfsidlewaitsnapshot file system idle wait time before the online image backup operationfails. The range of values is zero through 99; the default is 99.ExamplesOptions file:include.image h: MYMC snapshotfsidledretries=2Command line:-snapshotfsidleretries=2Related information“Include options” on page 395“Postsnapshotcmd” on page 430“Presnapshotcmd” on page 436“Snapshotfsidlewait”Use the snapshotfsidlewait option during an online image backup or open filesupport operation to specify the amount of time that must pass in which there isno write activity (read activity is ignored) on a volume before a snapshot can betaken. This allows the disk to reach an idle state.This option is only valid if OFS or online image backup has been configured, andthe LVSA has been selected as the snapshot provider.While the snapshot provider gives a point-in-time image of the volume, it does notguarantee that there is no disk related activity while the snapshot is taken. Thismight lead to an image backup that requires you to run chkdsk before the imagebackup is accessed. A message indicates that a chkdsk is necessary when youaccess the volume after the restore. In the case of OFS, a file might not be able tobe read. If the file cannot be read, a warning of the file read problem appears inthe dsmerror.log as a failed backup file, and the file is backed up during the nextincremental backup. The snapshot file system idle wait period can decrease thelikelihood of creating a snapshot while disk activity is occurring on the volume bydelaying the creation of the snapshot until the disk is idle (with no write activity)for a specified amount of time. For example, if you specify a value of 2 seconds, aperiod of 2 seconds must pass without write activity on a volume before asnapshot can occur.This option is only valid if the LVSA is installed and configured on your systemallowing you to perform an online image backup or open file support operation.For an online image backup, you can use the snapshotfsidlewait with the backupimage command, the include.image option, or in your dsm.opt file whenperforming an online image backup. Place the include.image statement containingthe snapshotfsidlewait value in your dsm.opt file.For open file support operations, use the snapshotfsidlewait option in yourdsm.opt file or the with the include.fs option.Chapter 12. Processing options 471