Veritas Storage Foundation™ for Oracle 5.0.1 Administrator's Guide

■ The dbed_ckptpolicy command can be used on file systems
using disk layout Version 6 and beyond.
■ The VxVM volume set and VxFS Multi-Volume File System features
must be enabled to use Storage Checkpoint allocation policies.
■ If you want to set a Storage Checkpoint allocation policy for a
particular file system in the database, the VxFS Multi-Volume File
System feature must be enabled on that file system.
■ The status of a Storage Checkpoint allocation policy is either
partial or complete. A partial policy is one that does not exist
on all file systems used by the database. A complete policy is one
that exists on all file systems.
■ After an allocation policy is assigned to a Storage Checkpoint, the
allocation mechanism attempts to satisfy requests from each device
in the order specified in the allocation policy. If the request cannot
be satisfied from any of the devices in the allocation policy, the
request will fail, even if other devices that have space exist in the
file system. Only devices listed in the policy can be allocated.
■ See the dbed_ckptpolicy(1M) manual page for more information.
Usage notes
To create a Storage Checkpoint allocation policy
◆
Use the dbed_ckptpolicy command as follows:
$ /opt/VRTS/bin/dbed_ckptpolicy -S FLAS11r1 \
-o create -p ckpt_sample
Output similar to the following is displayed:
File System: /snap_data11r1 (MVS volumes: datavol-b4vset,datavol1,
datavol2)
Assigned Data Policy: - (MVS Volumes: )
Assigned Meta Data Policy: - (MVS Volumes: )
Please enter the volume name(s), separated by space, for the policy
ckpt_sample [skip,quit]: datavol1
The following information will be used to create policy ckpt_sample
ckpt_sample /snap_data11r1 datavol1
This example assumes the following:
■ One MVS file system is used for datafiles
■ Filesystem /snap_data11r1 is created on volume set datavolvset
■ Volume set datavolvset contains volumes datavol-b4vset,datavol1,datavol2
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