Reporting; Vls Initialization By Co-Location - HP StorageWorks 12000 - Virtual Library System EVA Gateway Manual

Figure 77 VLS Initialization by Co-location
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Co-location is practical if replication is being installed along with VLS technology from day 1. If
replication is being added to VLS already installed at different sites, WAN transfer is best for small
quantities of data and tape transfer for larger quantities of data. Again, for many-to-one or active-active
implementations, co-location is impractical and WAN transfer or tape transfer is best.
NOTE:
With co-location initialization, you ship the initialized target device to the other site and will have to
change the target device TCP/IP address. In this case, you need to use the "Re-Manage LAN/WAN
Replication Target" task in the source device GUI to re-link the source to the target s new address.
Continuing Role for Physical Tape
HP has insisted all along that virtual tape libraries and physical tape are not mutually exclusive but
complementary technologies. Replication makes disaster recovery easier and more automated than
ever before, but disk is not infallible and some astute users will still archive data to tape at the disaster
recovery site allowing three copies of the backup data. This is prevalent in industries that have
compliance or severe audit requirements. Physical tape also has a role to play in replication setup
(tape initialization/transfer) and in the recovery process (see
Device), so do not disregard those tape libraries; they still have a valuable role to play.

Reporting

You can view the replication status and history from both the source and target VLS devices.
176 Virtual Library Systems
Restore Directly from the VLS Target