Procedure 11.8: DUMP AMA BLOCK TO RECEIVE-ONLY PRINTER
OVERVIEW
This procedure explains how to dump the three disk blocks, corresponding to a given AMA block, to the receive-only
printer (ROP). (At the point where the sequence number is found, the
OP:AMA:SEQ,BLK=x;
can be used to output
the contents of the AMA sequence number block. This command applies to all generics for 5E8 and later.
Immediately after the point where the sequence number and associated partitions are known, this command will
output all blocks on each stream that is equipped associated with the associated partitions more than one block may
have the same sequence number - possible since the sequence number is reset once 999999 is reached. If more
than one sequence number block is listed, the associated partition will also be listed). Although there is a simple
equation that can be used in certain situations, the simple equation does not cover all cases. Therefore, this
procedure uses general equations which can be applied to all situations.
Since primary data does not necessarily start at the beginning of a partition and data
wraparound
can occur (that is,
primary data at both the beginning and end of a partition, with secondary data in between), this procedure is rather
complicated. Two examples of the most common usage are provided after the procedure (the simple equation is
used where possible).
The problem is to find the disk blocks associated with a given sequence number (SN) on a given stream.
PROCEDURE
1.
At the master control center (MCC), type and enter the following command:
OP:AMA:MAPS,a;
Where:
a
= ST1 if AMA data goes to the ST1 data stream.
a
= ST2 if AMA data goes to the ST2 data stream.
Response:
REPT AMA DISK MAPS FOR STREAM a
WRITE PARTITION b READ PARTITION c
PARTITION d DISK MAP:
FPO: e LPO: f FPS: g LPS: h
FSO: i LSO: j FSS: k LSS: l
FBO: m LBO: n FBS: o LBS: p
Where:
a
= Data stream ST1 or ST2.
b
= Partition number in which the disk writer will write AMA data.
c
= Partition number from which AMA data will be taken during a teleprocessing or tape
session.
d
= Partition number from which the disk map is read.
NOTE 1:
In the following information,
offsets
are measured in disk blocks from the beginning of the
partition. Each disk block is 512 bytes in size.
NOTE 2:
In the following information,
sequence numbers
are at the corresponding AMA block taken from the
disk map. Each AMA block is 1536 bytes in size.
Where:
e
=
First primary offset (FPO).
f
=
Last primary offset (LPO).
235-105-210
October 1999
Copyright © 1999
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