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RDX A8 User and Service Guide — Version 1.0
iv. Operation modes
The RDX A8 is capable of being configured during installation by the user to present up to
eight RDX cartridges to the host system (via the iSCSI Initiator) as one of two different configurations
of RDX based storage devices. Depending upon the intended application and data management/backup
application in use the correct mode needs to be selected to support unit operation. Please see the online
RDX A8 software-compatibility matrix for additional information or contact your reseller. Below is a brief
description of each operating mode.
Setting of the modes is covered on Page 34.
Mode 1—RDX A8 Tape Library:
The unit appears to the host application as an 8 slot library (autoloader, media changer) containing
one generic LTO tape drive. The application controls which cartridge is “inserted” in the one available
“tape drive”. This mode requires the use of a data management/backup applications which supports
a library (media changer) containing one tape drive.
Note that the RDX A8 unit is emulating the LTO tape format to the host application including the
actual file format recorded on the RDX cartridge. RDX cartridges which are recorded in this mode
are not write/read interchangeable with standard RDX docks.
Use of this mode requires the user to pre-format the standard RDX media to the
tape format mode. The RDX A8 unit identifies the current cartridge format via the OCP and
RDX A8 Manager interfaces.
Mode 2—RDX A8 JBOD (default setting):
The RDX A8 unit appears to the host operating system as 8 individual RDX cartridge drives,
each with their own drive letter.
Note that, depending on the host operating system, drive letters may only appear when an
RDX cartridge is inserted into a RDX A8 slot. Removal of media via cartridge eject may cause the
drive letter to disappear.
This mode may be used with Windows operating systems for standard disk operations or with
data management/backup application designed to operate with individual RDX storage units in
a grouped configuration.
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