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Tivoli Storage Manager for Windows Backup-Archive Clients Installation and User's Guide

Snapshotfsidlewait

Use the snapshotfsidlewait option with the backup image command or the include.image option when performing an online image backup to specify the amount of time that must pass in which there is no write activity (read activity is ignored) on a volume before a snapshot can be taken. This allows the disk to reach an idle, and more consistent state before the snapshot occurs. While the snapshot provider provides a point-in-time image of the volume, it does not guarantee that there is no disk related activity while the snapshot is taken. The Snapshot FS Idle Wait period can decrease the likelihood of creating a snapshot while disk activity is occurring on the volume by delaying 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, a period of 2 seconds must pass without write activity on a volume before a snapshot can occur.

Place the include.image statement containing the snapshotfsidlewait value in your dsm.opt file.

Supported Clients

This option is valid for the Windows 2000 client only.

Syntax

>>-SNAPSHOTFSIDLEWait- time------------------------------------><
 
 

Parameters

time
Specifies the amount of time that must pass during which there is no write activity on a volume before a snapshot can be taken. You may specify ms (milliseconds) or s (seconds) qualifiers with the value. If you do not specify a qualifier, the value you specify is interpreted as seconds. The range of values is zero through 999; the default is 1. A value of zero (0) indicates that the snapshot will occur immediately without waiting for a period of inactivity.

Examples

Options file:
include.image h: MYMC snapshotfsidlewait=500ms

Command line:
-snapshotfsidlewait=2s


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