HP 12000 HP VLS Solutions Guide Design Guidelines for Virtual Library Systems - Page 127
Non-deduplicated Replication
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8 Non-deduplicated Replication If you have not enabled Accelerated deduplication on your VLS device , non-deduplicated replication can still provide a more reliable method of sending mission-critical data off-site compared to off-site using physical tape (because there is no need to load/unload physical media and ship it to the off-site location). VLS-to-VLS non-deduplicated replication options: • Using SAN-based Automigration Automigration also supports using a VLS as a destination library, as a device-to-device replication scheme over an extended SAN. To use a VLS as a destination library, designate one VLS as the source and a second VLS as the destination. The destination VLS is presented over an extended SAN so that it is visible to the source VLS. With Command View VLS, establishe an automigration policy and echo copy pools in the same way you set up automigration with a physical destination library. See Echo Copy Pools and Automigration Policy. The source VLS performs normal backups during your regular backup window. During the automigration window you defined, source virtual cartridges automatically migrate to matching virtual cartridges on the destination VLS. The VLS with the source library must support automigration; however, it is not necessary for the destination VLS to do so. If you have an earlier generation VLS system and you purchase a VLS6200, VLS6600, or VLS12000 Gateway, you can use the newer models to handle automigration as the source device. Earlier generation VLS devices can be used as destinations. NOTE: You cannot use device-to-device replication with the VLS9000 because its back-end storage ports are wired into its private SAN and cannot be connected to a public SAN. Figure 59 Site-to-site Replication • Using TCP/IP-based non-deduplicated replication You can configure an echo copy pool to a LAN/WAN destination library (which connects to a replication target on the target device). This provides an echo copy replication link over TCP/IP between the source and destination devices. ◦ You must be running VLS firmware version 2.3 on both the source and target VLS devices. ◦ This option only supports one replication link (node0 external LAN connection). ◦ The process to set up the non-deduplicated replication is very similar to the deduplication-enabled replication (see Replication Setup) except that there is no need for initialization step because the data is transferred in its entirety every time. 127