Remote Host Access - Quantum DXi4700 User Manual

Chapter 9: Configuration
VTL Configuration
4. (Optional) If you are unloading cartridges from a drive, select the Force Unload (Virtual Tape Drives)
check box to force drives to unload the cartridges before ejecting them.
5. (Optional) To reduce the number of cartridges displayed in the table, enter a barcode or barcode range
in the Barcode Filter box and click Apply Filter.
Use a hyphen (-) to indicate a range, and use an asterisk (*) to indicate a wildcard. Separate multiple
entries with commas, and do not use spaces.
Example: Enter AAA* to display all cartridge barcodes beginning with AAA. Or enter AAA010-
AAA020 to display all barcodes in the specified range. Click the Quick Tip icon [?] for additional
examples.
6. Select the cartridges to unload.
Note: If necessary, use the controls at the bottom of the table to navigate between multiple pages
of results. Select the number of rows to display in the Show drop-down box.
7. Click Apply.
Cartridges are moved to a previous storage slot if available. Otherwise, they are moved to the first
available storage slot.
8. Return the partition to an online state (see

Remote Host Access

The Remote Host Access page allows you to configure virtual media changers and tape drives on the
DXi4700 to communicate with Fibre Channel hosts (initiators). You can add, edit, and delete hosts as well
as view Fibre Channel target ports on the DXi.
If you do not create and associate a host access group with a partition, the virtual devices are not visible from
the host, and drives cannot be destinations for move operations.
Fibre Channel Host Bus Adapters (HBAs) - Data Payload Size
The Fibre Channel HBAs used on the DXi4700 have a maximum data payload size per frame of 2048
bytes. The Fibre Channel specification allows a maximum data payload size of 2112 bytes per frame.
Fibre Channel HBAs used on backup hosts should be configured to use a maximum data payload size of
2048 bytes per frame. Failure to match the backup host maximum data payload size to the DXi4700
maximum data payload size may result in stalled data transfers.
To access the Remote Host Access page, on the VTL page, click the Remote Host Access tab.
The Remote Host Access page contains the following tabs:
Quantum DXi4700 User's Guide
Changing Partition Mode on page 215).
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