Veritas™ File System 5.0.1 Administrator's Guide

extents on the volumes being removed are automatically relocated to other volumes
within the policy.
The following example redefines a policy that has four volumes by adding two
new volumes, removing an existing volume, and enforcing the policy for
rebalancing.
To rebalance extents
1
Define the policy by specifying the -o balance and -c options:
# fsapadm define -o balance -c 2m /mnt loadbal vol1 vol2 vol4 \
vol5 vol6
2
Enforce the policy:
# fsapadm enforcefile -f strict /mnt/filedb
Converting a multi-volume file system to a single
volume file system
Because data can be relocated among volumes in a multi-volume file system, you
can convert a multi-volume file system to a traditional, single volume file system
by moving all file system data onto a single volume. Such a conversion is useful
to users who would like to try using a multi-volume file system or Dynamic Storage
Tiering, but are not committed to using a multi-volume file system permanently.
See “About Dynamic Storage Tiering” on page 143.
There are three restrictions to this operation:
■ The single volume must be the first volume in the volume set
■ The first volume must have sufficient space to hold all of the data and file
system metadata
■ The volume cannot have any allocation policies that restrict the movement of
data
Converting to a single volume file system
The following procedure converts an existing multi-volume file system, /mnt1,
of the volume set vset1, to a single volume file system, /mnt1, on volume vol1 in
diskgroup dg1.
139Multi-volume file systems
Converting a multi-volume file system to a single volume file system