4. ADMINISTRATIVE WORKSTATION MAINTENANCE
Overview
This chapter covers maintenance of the Netra
1
t 1120, Netra 20 and Netra 240
(Administrative Workstation) located at the DRM office. Although procedure steps
involving software commands can be performed via the ASM (via an OA&M
cut-through), someone must be present at the DRM office to perform any hardware
portions. The Administrative Workstation (AW) requires very little corrective
maintenance and no routine maintenance.
In the event of a complete workstation failure, the entire AW should be replaced. In
the rare case of a duplex hard disk failure, both hard disks must be replaced. Once the
new workstation is installed with the appropriate interface cable connections, the
software must be reloaded from backup tapes (created and kept current after the
initial installation) and the SunOS + emulator tape or CD-ROM (accompanied the
initial switch installation).
The following tapes and CD-ROM were provided with the switch hardware and
contain all the necessary software to operate the switch:
1. SUN OS + Emulator - contains the SUN OS software and the 3B21 emulator
software resident on the AW (provided during switch installation).
2. TOP (Tape Operating Procedure) - contains the necessary tape loading software.
3. Switching Module Text - contains the switching module text data normally
resident in the switching module.
4. AM Text - Contains the emulated Administrative Module (AM) text data. There
may be 1 or 2 AM text tapes.
5. AM ODD/ECD - Contains the emulated AM Office Dependent Data (ODD) and
the necessary Equipment Configuration Database (ECD).
6. Switching Module ODD - Contains the switching module ODD necessary for call
processing.
Note: Tapes 2 through 6 provided for installation will NOT work for office recovery
resulting from workstation replacement. These tapes must be made after initial
installation and kept current using the backup procedures in 235-105-210, 5ESS
®
Switch Routine Operations and Maintenance Procedures.
See “Perform Office Dead Start Recovery,” Procedure 7.1, for loading the software from
the tape to the AW.
Digital Audio Tape (DAT) Tape Drive Unit
The Digital Audio Tape (DAT) tape drive unit connected to or built into the AW
provides permanent storage for switch data. The DAT tape drive unit uses a tape
cassette that loads and unloads from the unit in a simple manner.
The DAT tape drive unit is designed to use 4mm data-grade DDS cartridge media.
Look for the DDS label on the tape cartridge to be sure you are using data-grade tape
and not audio-grade tape. The tape cartridge should be of the same temperature as
the drive for 24 hours prior to use. Table 4-1 lists the format and supported tape sizes
and tape capacities in native (non-compressed) mode.
1. Trademark of Sun Microsystems, Inc.
235-200-150
March 2006
ADMINISTRATIVE WORKSTATION MAINTENANCE
Issue 3.00M Page 4-1
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