VERITAS Storage Foundation 4.1 Oracle Administrator's Guide

Determining Space Requirements for Storage Checkpoints Prerelease 8 September 2005, 8:55am
166 VERITAS Storage Foundation for Oracle Administrator’s Guide
If you are restoring some of the files in the file system, you should first remove the data-full
Storage Checkpoints that are no longer needed. If you have very limited free space on the file
system, you may have to remove all data-full Storage Checkpoints in order for the restore to
succeed.
To avoid unnecessary Storage Checkpoint removal, use the VxDBA utility to set up a Monitoring
Agent to monitor file system space usage. When file system space usage exceeds a preset threshold
value (say, 95 percent full), the Monitoring Agent alerts the system administrator and optionally
grows the volume and the file system. Automatic notifications to the system administrator on the
status of space usage and file system resizing are available through electronic mail, the
syslogd(1M) program, or by logging messages to a simple log file. See “Managing File System
Space” on page 375 for more information.
Always reserve free disk space for growing volumes and file systems. You can also preallocate
sufficient space for each file system when the file system is first created or manually grow the file
system and logical volume where the file system resides. See the vxassist(1) and
fsadm_vxfs(1) manual pages for more information.