NEC Storage ReplicationControl FileSystem Option
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The following is a description of the main functions of NEC Storage ReplicationControl FileSystem Option.
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The product separates disks after synchronizing all data on a file system not written to a disk by freeze synchronization of the file system on Volume Group (VG). The synchronization is performed per VG basis under Logical Volume Manager (LVM).
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By designating options upon execution of the command, the commands of LVM needed to activate separated disks as a new VG on the same host are automatically executed. A logical volume in the activated volume group can be mounted as it is. This function is useful when the separated disks are backed up by the same host.
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The product re-replicates a replicated volume after separation. If the separated replication volume is already activated as a new VG and mounted, the product performs replication after the replication volume is unmounted and then deactivated.
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FileSystem Option can be used for configuration with NEC Storage RemoteDataReplication(RDR) that performs replication between separate disk array devices.
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NEC Storage can configure up to three replicated volumes (RV) for one master volume (MV) and can synchronize each pair of MV and RV simultaneously. FileSystem Option can be used with this configuration.
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The product supports immediate separation function of NEC Storage DynamicDataReplication and NEC Storage RemoteDataReplication.
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Options used upon command execution can be set in a configuration file. The options can be set for each VG when complex options are repeatedly used or multiple VG configurations are used.
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