Procedure 11.35: DEGROW AMA PARTITION FOR SMD-MHD PAIR ON 3B20D MODEL 3 -
5E9 AND LATER
OVERVIEW
This procedure degrows the AMA partitions on a pair of Duplex Disk Drives (SMD or SCSI). The degrowth pair of
Duplex Disk Drives must contain only AMA data. This Section is to be used in those
5ESS
®
-2000 switch offices
operating on the 5E9 and later software releases.
Any primary AMA data residing on the degrowth disk pair be completely transferred to secondary data.
Hardware Description
The 340-Mb disks are high speed, random access memory devices that are used for mass data storage in the
computer. The disks are connected to the computer via a disk file controller, duplex dual serial bus selector, and a
dual serial channel. The disk file controller can communicate with as many as six disk drives.
The 340-Mb disks are located in the disk frame (J1C186A-1). Also, power supplies (KS-22997, L2) and power
switches (ED-4C481) are located in the disk frame.
The drives are installed in enclosures that are acoustically insulated to reduce noise level near the unit and to
provide electromagnetic compatibility shielding.
References
The following documents should be available when performing this degrowth:
Office Equipment List Drawing.
Prerequisite Conditions
The degrowth pair of Duplex Disk Drives must be the highest-numbered pair in the office line-up.
If the degrowth disks contain SM~ODD, the disks will have to be reconfigured. The subsequent degrowth procedure
will fail until the disk reconfiguration is performed (See Section 10.21 of this document).
Assure that the system has been running sanely without any problems within the past 24 hours and that the
following conditions are met:.
Assure that within the past 24 hours the processor has not experienced any terminal suspends, initializations,
diagnostic failures, or overloads.
Assure that disks drives are in the duplex mode. Keep all IOPs and both MTTYCs ACTIVE in order to do port
switch during the procedure. The MTTYC Port Switch must be in AUTO position. Assure Control Units (CUs)
have been in active-standby mode (with the exception of routine maintenance and diagnostic requests).
SYS NORM indicator should be on and verify that the system is running on the primary ROOT file system.
The office must be running on Software Release 5E9 or later.
NOTE:
Throughout this procedure, a single data stream office does not have to be specified as an ST1 or an ST2.
However, a dual stream office
must
be specified as either an ST1 or an ST2.
235-105-210
October 1999
Copyright © 1999
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Summary of Contents for 5ESS-2000
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