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defragcron(8) System Manager's Manual defragcron(8) NAME defragcron - Schedules AdvFS file domains for defragmenting SYNOPSIS /usr/sbin/defragcron [-p] [-q] [-tnnn] [-b hh:mm] [-a hh:mm] [domain ...] /usr/sbin/defragcron [-p] [-q] [-tnnn] [-T mm] [domain ...] PARAMETERS Specifies one or more AdvFS file domains. If no domains are specified, the default action is for the utility to defragment all active AdvFS file domains. FLAGS Specifies that the domains are to be defragmented in parallel. If not specified, the default is to serially defragment the domains. Suppress informational messages. If not specified, the default is to produce informational messages. Specifies the aggregate I/O performance threshold, the point at which the domain should be defragmented. A number from 1-100. If not specified, the default is to always defrag- ment the domain. The performance threshold is based on the value returned by the defragment -nv command. If this value is lower than or equal to the value specified here, the domain is defragmented. If speci- fied, the utility will not run before this time and will return an error if the time is not yet reached. Specify time values using the 24-hour clock. If not specified, the default time is 01:00. If specified, the utility will not run after this time, and will return an error if the time has been passed. Specify time values using the 24-hour clock. If not specified, the de- fault time is 05:00. Specifies an exact time interval, in min- utes, for the defragment utility to run. If not specified, there is no default. If you use this flag, its action overrides the before and after time checking of the -a and -b flags. DESCRIPTION The defragcron utility runs the defragment utility to a schedule that you specify on all active AdvFS file domains or on the active domains you specify. The typical use of this utility is to run it as a command in the cron daemon. See cron(8). The utility does not attempt to defragment inactive file domains (those which have unmounted filesets). RESTRICTIONS You must have root user privileges to run this utility. All restrictions for the defragment utility are in effect for the de- fragcon utility. EXAMPLES The following example defragments all active domains that have an ag- gregate I/O performance threshold less than or equal to 60 for an in- terval of 240 minutes: # /usr/sbin/defragcon -q -t 60 -T 240 EXIT VALUES The utility returns a zero on success. Otherwise, it returns a 1 and an error diagnostic. FILES The command's path. The path of the defragment utility. RELATED INFORMATION Commands: crontab(1), cron(8), defragment(8) delim off defragcron(8)