Disk and File System Management3-17
you can have before exceeding your space limit. In this example, 13 daily snap-
shots is your limit.
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You can also use the filestats command to determine when most activity occurs
on a volume during a given day so that you can effectively schedule hourly snapshots.
The following example shows how you can use the filestats command to deter-
mine when most file changes occur in a volume within a 24-hour period:
filestats ages 1H,2H,3H,4H,5H,6H,7H,8H,9H,10H,11H,12H,
13H,14H,15H,16H,17H,18H,19H,20H,21H,22H,23H,24H volume vol0
snapshot hourly.0
If hourly.0 was taken at 8 a.m., and most file changes took place between 7H and 9H,
which corresponds to 3 p.m. and 5 p.m. in this example, you can schedule more snap-
shots during these hours, and fewer throughout the rest of the day. Scheduling more
snapshots before or during increased file activity decreases the time between file
changes and snapshots.
For information about managing snapshots, refer to the section, Managing Snapshot
Disk Consumption, in Chapter 9.
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Use the output from the filestats command for a summary of the following infor-
mation about files in a volume:
Size
Creation time
Modification time
Owner
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The following two arguments are required when using the filestats command:
volume
snapshot