Veritas Storage Foundation™ for Oracle 5.0.1 Administrator's Guide

Table 1-1
Veritas Volume Manager features (continued)
BenefitFeature
Speeds the recovery of mirrored volumes after a system
crash.
Dirty Region Logging (DRL)
Increases the availability of mirrored volumes by only
resynchronizing changed data.
SmartSync Recovery Accelerator
Allows backup of volumes based on disk mirroring.
VxVM provides full-sized and space-optimized instant
snapshots, which are online and off-host point-in-time
copy solutions.
Volume snapshots
Separately licensed, optional feature that performs
quick and efficient resynchronization of stale mirrors.
FastResync is included with the Enterprise Edition and
is also included as part of the Veritas FlashSnap option
with the Standard Edition.
FastResync
Separately licensed, optional feature that supports
general disk group reorganization and allows you to
move volume snapshots to another host for off-host
backup.
Disk group split and join is included with the Enterprise
Edition and is also included as part of the Veritas
FlashSnap option with the Standard Edition.
Disk group split and join
Automatically restores data redundancy in mirrored
and RAID-5 volumes when a disk fails.
Hot-relocation
Allows for transparent failover, load sharing, and hot
plugging of physical disks.
Dynamic multipathing (DMP)
Allows several volumes to be represented by a single
logical mount device.
Volume sets
Allows you to resize a disk after it has been initialized
while preserving the existing data on the disk.
Dynamic LUN Expansion
Helps diagnose configuration problems with VxVM.Storage Expert
Separately licensed, optional feature that allows you
to use VxVM in a cluster environment.
Cluster Volume Manager (CVM)
21Introducing Veritas Storage Foundation for Oracle
How Veritas Volume Manager works