Volume Replicator 5.0 Release Notes - Storage Foundation ...

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22 Veritas Volume Replicator Release NotesSoftware limitationsRAID-5 volumeDisk Group Split and JoinVVR does not support Volume Manager RAID-5 volumes as part of RVGs.Hardware RAID-5 is supported.VVR does not support Disk Group Split and Join. This means that you cannot useDisk Group Split and Join on data volumes in an RVG. However, you can takesnapshots of data volumes and use DGSJ on the snapshots.Importing a disk group with VVR objectsVolumes in boot disk groupIf a private disk group containing VVR objects is imported on two nodes, as wellas the problems documented for VxVM objects, the SRL is corrupted and a fullresynchronization of the Secondary is required.It is not recommended to have replicated volumes in the boot disk group(bootdg).Selecting records using search expressionsAdding a SecondaryThe vxprint -e pattern command: Selecting RVG and RLINK records usingsearch expressions is not supported.When adding a Secondary to the RDS, the vradmin addsec command cannotbe entered from the host being added. If the RDS contains the Primary only, thecommand must be entered on the Primary.Issues related to replication in a shared environmentCreating a Primary RVG when the data volumes and SRL are on a shareddiskWhen creating a Primary whose data volumes and SRL are located on a shareddisk group, the vradmin createpri command must be issued on the masternode of the cluster.
Veritas Volume Replicator Release Notes 23Software limitationsVRW limitationsCreating a Secondary RVG when the data volumes and SRL are on ashared diskWhen adding a Secondary whose data volumes and SRL are located on a shareddisk group to a RDS, the vradmin addsec command requires the Secondaryhost name must be resolvable and up on the master node of the Secondarycluster.Replication not supported between Linux and HP-UX for shared diskgroupsReplication in a shared disk group is not supported between Linux and HP-UX.(592349)Increasing font sizeIncreasing the font size may cause problems in viewing and navigating thewizards.IBC messaging supportThis release of VRW does not support In-Band Control (IBC) messaging.VCS Agents for VVR limitationsOnlining and offlining the RVG resourcesCurrently a problem with Veritas Volume Manager affects the RVG resources.When many RVGs are defined, the number of requests to the Volume Managerto online or offline can overload the vxconfigd process of VxVM,preventing some RVGs from going online or offline.Workaround: The RVG resources have been set to allow only a single instance ofan RVG resource to be brought online or offline. This slows down the onliningand offlining of service groups containing RVGs.Limitations in the RVGSnapshot agentFire drill setup (fdsetup) supports applications using one disk group only. TheRVGSnapshot agent does not support volume sets.
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