Dell PowerVault 136T LTO/SDLT (Tape Library) - Manual (Page 3)

ends of the bus must be terminated and a terminator is shipped with each library. Although the Dell PowerVault 136T LTO Library can be attached
to a wide SCSI bus, it is not a wide SCSI device and its SCSI ID must be in the range of 0 to 7. The default SCSI ID for the Dell PowerVault 136T
LTO Library is 0.
NOTE: Typically, 7 is the ID set for a SCSI adapter.
The Dell PowerVault 136T LTO Library can also be connected to a Fibre Channel Host Storage Area Network (SAN) via the Dell PowerVault
136T Fibre Bridge. The Fibre Bridge module translates (bridges) the SCSI protocol between the two media types.
Remote Management Unit (RMU)
The Remote Management Unit (RMU) resides in each system and is pre-installed at the factory. The RMU allows remote access via a Web
browser to the library. Microsoft Internet Explorer version 4.0 and above, as well as Netscape Navigator versions 4.01, 4.5, 4.7X and above are
supported by the RMU.
The user is able to remotely access library status and the library Operator Panel via the RMU. The RMU also allows the user to remotely update
firmware in the RMU, the drives, and the library's controller, retrieve library command and error logs, and make configuration changes. The RMU
supports Simple Network Management Protocol (SNMP) version 2.0 and acts as an SNMP-server. The RMU acquires Tape Alert 3.0 compatibility
information from the library over the serial interface port and sends that information to an SNMP server. The RMU also detects a power loss and
generates an SNMP trap for notification. For more information, refer to
Remote Management Unit (RMU) .
Functional Description
The Dell PowerVault 136T LTO Library configuration must include at least one tape drive. A maximum of 6 drives can be included. The Dell
PowerVault 136T LTO Library system contains cartridges, library control hardware, tape drives and a robotic system. The tape cartridges are
stored in removable magazines. The magazines are designed such that tape cartridges can only be inserted in the proper orientation. Once
inserted, the tape cartridges will be retained in the magazine such that they remain in place even when the magazine is inverted and shaken lightly.
The magazines can only be inserted one way into the mounting columns in the library.
The library robotics system moves cartridges between storage slots, tape drives and the Mailbox. A picker is used to get/put cartridges in a
storage slot or a tape drive feed slot. A barcode scanner on the picker identifies the cartridge or slot. The Mailbox allows cartridges to be added or
removed from the Dell PowerVault 136T LTO Library without interrupting the operation of the Library.
The cartridge storage slots and cartridge picker are accessed for maintenance purposes by opening the front door of the Dell PowerVault 136T
LTO Library. The tape drives, power supplies, and host interface PCBA are accessed from the back of the Dell PowerVault 136T LTO Library for
maintenance purposes.
Requests issued from the host result in cartridge movement in the library. The primary requests issued are for mounting and dismounting
cartridges to and from the tape drives and for importing and exporting cartridges to or from the library. The host has records of the physical
location of a cartridge in the library. The physical location is also managed by the library. Each cartridge needs a machine and operator-readable
external label to identify a volume serial number (volser) in the library during initial inventory and any time a cartridge is added to the library. The
library stores the physical location of the cartridge in an inventory database based on the cartridge volser. All host requests for operations involving
movement or use of a cartridge need only reference the physical location of the cartridge for the library to perform the request.
In addition to requesting movement of cartridges in the library, the host can obtain status, performance, configuration information, and information
about the cartridges stored in the Dell PowerVault 136T LTO Library.
Functional Units
The Dell PowerVault 136T LTO Library consists of the following functional units:
l
Tape drives in Drive Modules
l Library control hardware
l
Cartridge storage
l Robotic system
l Mailbox
Tape Drives
The Dell PowerVault 136T LTO Library currently supports the following tape drives:
l LTO type drive
All tape drives are packaged in a common Drive Module that is designed for quick removal and replacement. The Drive Module is a Field
Replacement Unit (FRU) that is returned for repair.
Library Control Hardware
The library control hardware controls all operations in the Dell PowerVault 136T LTO Library, including the interaction between the library and
operators. The library firmware creates and maintains the Dell PowerVault 136T LTO Library configuration, the physical location of the robotic