Job Planning - Tru64 Unix; Suspending I/O Before Replicating Advfs Volumes - Tru64 Unix - HP 418800-B21 - StorageWorks Modular Smart Array 70 Storage Enclosure User Manual

• Continue. Continue a paused job instance. Procedure.
• Pause. Pause a job instance. Procedure.
Scheduled job event actions on the Schedule tab
• View Properties. View the interval (frequency) and start time of a scheduled job event. Procedure.
• Enable/Disable. Toggle a scheduled job event on or off. Procedure.
• Schedule Job. Schedule a job event. Procedure.
• Edit Schedule. Edit a scheduled job event. Procedure.
• Remove. Delete a scheduled job event. Procedure.
Job instance actions on the Monitor Job window
• Continue. Continues a paused job instance.Procedure.
• Pause. Pauses a running job instance. Procedure.
• Abort. Stops a running job instance. Procedure.
• Refresh. Refreshes the Monitor Job window.

Job Planning - Tru64 UNIX

Suspending I/O before replicating AdvFS volumes - Tru64 UNIX

If you plan to replicate an AdvFS host volume or volume group (fileset or domain) that has heavy I/O,
HP recommends that the job include steps to briefly suspend I/O of the appropriate mount points just
before the replication steps.
When generating a job template, select the option Suspend Source Before Replication to add the steps. If
creating a custom job, manually enter the steps. Below is an example.
Line Task
...
14
// Suspend the host application.
15
Launch ( $source_host, %suspend_command_line%, "", WAIT, "0" ) onerror pauseat E1:
16 DO {
$Rep1 = SnapshotHostVolume ( $source_hostvol_unc1, FULLY_ALLOCATED, SAME, NOWAIT ) onerror
17
pauseat E1:
18 //
19 } ALWAYS {
20 // Resume the host application.
21 Launch ( $source_host, %resume_command_line%, "", WAIT, "0" )
22 }
23
//
...
In the first Launch command (example, line 15) enter a host command or script file name to suspend I/O
(freeze the mount point). For example, the syntax for the freezefs utility is:
"freezefs –t -1 /mountPoint"
Be sure to include the -1 argument. This prevents the OS from automatically performing a subsequent
thaw. If omitted, the job can fail on the resume step (example, line 21).
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Jobs