Library Overview; Physical Description - HP E Series User Manual

1 Library overview

The HP StorageWorks Enterprise Modular Library (EML) E-Series is a self-contained, fully automated tape
cartridge storage and retrieval system. The EML is a part of the Extended Tape Library Architecture
(ETLA), using HP controller-based manageability interfaces communicating over a SAN to provide
reliability, security, network awareness, and diagnostic features to tape libraries.
This chapter covers the following EML topics:
• Physical description, page 13
• Functional

Physical description

The EML arrives fully contained in a 42U rack on a shock pallet. The rack contains one power distribution
unit (PDU) mounted on the side, and two extension bars (power strips) containing10-amp outlets mounted
to the rear rails. The front and rear doors are perforated to allow sufficient air circulation, with the split
rear doors allowing full access to library modules, without blocking rack aisles.
The EML is orderable in three HP rack configurations:
• Model 103e (see
operator control panel (OCP), load port, card cage (with a preinstalled library robotics controller and
Interface Manager card), and mounting space for up to four tape drives. A total of 103 Linear
Tape-Open (LTO) slots (98 permanent and 5 configurable) are available. Tape drives and Fibre
Channel (FC) interface controllers are ordered separately.
• Model 103e bundle with drives and media—The same as the model described above, with four HP
Ultrium 460 tape drives, FC interface controller, media, cables, and cleaning cartridge included. The
tape drives and interface controller come preinstalled in the rack.
• Model 245e (see
configuration, plus an 8U drive expansion module with load port, and a 4U card cage expansion
module. A total of 245 LTO slots (230 permanent and 15 configurable) are provided with eight tape
drives allowed. Tape drives and FC interface controllers are ordered separately.
In addition, HP provides kits that enable you to expand the library configuration to 42U (with 2U at the
top of the rack reserved for customer use). An additional power distribution unit (PDU) and redundant
power supplies can be added to the EML to provide failsafe power features (see
PDU" on page 125 for guidelines). A fully-configured rack can provide a maximum of 442 LTO slots (407
permanent and 35 configurable) with as many as 16 tape drives (see
their slot and tape drive capacities, are listed in
Components described in the following sections comprise an orderable EML or can be installed in an EML
for additional capacity.
description, page 23
Figure 1)—A 12U design consisting of a base module that contains a robot, an
Figure 2)—A 24U design consisting of the components in the Model 103e
Figure
Table 24 in Appendix A.
Enterprise Modular Library E-Series user guide
"Installing a redundant
3). All configurations, with
13