HP StoreEver ESL G3 Tape Libraries - Manual (Page 19)

Control management blade (CMB)
The CMB performs unit status monitoring, including power and I/O present conditions. The CMB
also enables you to update drive firmware without using a firmware update (FUP) tape.
Ethernet expansion blade (EEB)
The EEB provides Ethernet connectivity to each LTO drive for MCB-to-drive communication purposes
only. The EEB is not in the data path. This EEB provides a control path to the drive for commands
as well as facilitates taking drive logs and downloading drive firmware. Each EEB has 6 Ethernet
ports to allow attachment to 6 LTO drives. The EEB provides Ethernet connectivity to the library
internal Ethernet and should not be connected to an external Ethernet source.
Picker (cartridge accessor)
The picker moves cartridges between storage cells, tape drives, and I/E stations. A picker is used
to Get or Put cartridges in a storage cell or a tape drive slot. It moves along an X and Y axis and
can pivot 180 degrees. A barcode scanner on the picker assembly identifies cartridges located
in storage slots.
Import/Export stations
I/E stations enable you to import and export cartridges without interrupting normal library
operations. A 24–slot I/E station comes installed on the front of the control module. Optionally,
additional I/E stations can be added to both standard EMs and HDEMs in larger libraries. See
Figure 1 (page 11) and Figure 2 (page 15) to see the location of the I/E station.
Each 24-slot I/E station contains four removable magazines for a total of 24 LTO tape cartridges.
Each 72-slot I/E station contains twelve removable magazines for a total of 72 LTO tape cartridges.
NOTE: The I/E station cannot be configured as a storage location, but it can be part of a logical
division of library resources known as partitions. For information about partitions, see “Working
with partitions” (page 27) .
A library I/E station configuration can accommodate one 24–slot I/E station in the control module
and up to seven 72–slot I/E stations, with a maximum of 528 I/E slots per library. The I/E station
placement options available in your library are dependent on the date of purchase and firmware
version installed on your library:
•
Libraries shipped before May 2013 and running a firmware version prior to 663H, I/E stations
cannot be placed in EMs in positions 9–16.
•
Libraries shipped after May 2013 and running firmware version 663H or later, I/E stations
can be placed in EMs throughout the library.
NOTE: If you have a dual robot library, the left parking module cannot contain an I/E station.
If you have a dual robot library, the last frame (also referred to as the right parking module) of a
library can support a 24–slot I/E station but cannot support a 72–slot I/E station.
Extended I/E option
The number of I/E slots in a library is usually associated with the number of I/E slots in an actual
physical I/E station, but this physical slot count might limit how many I/E slots are available to a
host application.
Extended I/E configurations remove such limitations by increasing the I/E slot count for a partition
with storage slots that will be reported to a host as I/E slots. Therefore, Extended I/E allows you
to configure partitions with I/E slots beyond the number of physical I/E slots configured in the
library. As a result, the host can export more media than previously allowed.
Picker (cartridge accessor) 19