Copy Export Operation - IBM TS7700 Series User Manual

August 15, 2017

Copy Export Operation

Once the export list file volume has been written to the TS7700 that is to execute the copy export operation,
you will need to initiate the operation.
Pre-Execution Checking
But before you initiate the operation, you may want to check to ensure that the TS7700 has the needed
physical drives and scratch physical volume resources and that it is not near the limit of the number of
physical volumes that can have a status of copy exported. You should also be sure that the I/O station is
empty. If you had migrated from a B10 or B20 VTS to the TS7700 using the outboard migration method,
you may have data that is still in the older VTS format. The TS7700 cannot export data in the old format, so
you should check to see if any of the data to export was written with the old format. Also, if that data was
assigned to a pool that is now to be used for copy export, the older format VTS volumes are likely primary
volumes and cannot be exported.
To check that the TS7700 has at least four available physical tape drives, you can use the Library Request
host console command that specifies the PDRIVE request. This will return status on all of the physical
drives in the TS7700. If there are fewer than four physical drives available, you will need to call for service
to repair drives prior to performing the copy export operation.
Here is an example of the data returned by the PDRIVE request:
PHYSICAL DRIVES V1
SERIAL NUM
000007878161 3592E05E
000007878175 3592E05E
000001365176 3592E05E
000001365177 3592E05E
000001365137 3592E05E
000001365181 3592E05E
000007878194 3592E05E
000007878312 3592E05E
It shows that the TS7700 has eight available drives.
To check that the pool to be exported has sufficient scratch physical volumes and that the TS7700 is under
the 2000 volume limit for copy exported volume on all pools, you can use the Library Request host console
command that specifies the POOLCNT request. This will return the counts for the scratch physical volumes
by pool and also the number of physical volumes that have a status of copy exported by pool. Ensure that
the pool you are going to export has at least one scratch physical volume and that the total across all pools
for physical volumes with a status of copy exported is less than 2000. If there are insufficient scratch
volumes available for the pool, you should address that prior to attempting to execute copy export. If the
copy export operation needs a scratch volume and one is not available, it will stop and wait for up to 60
minutes for you to make scratch volumes available. If scratch volumes are not made available within 60
minutes, the copy export operation is terminated. If the TS7700 is already at the 2000 volume limit (it could
be over by a few volumes), you will need to reduce that number before a copy export can be executed. See
the section on Reclamation of Copy Exported Physical Volumes. At code release level R1.6 and higher, the
2000 volume limit can be changed to a maximum of 10000.
Here is an example of the data returned by the POOLCNT request, with pools 3 & 4 being used as
secondary pools for copy export:
© Copyright IBM Corporation, 2017
TYPE MODE AVAIL
E05E Y
E05E Y
E05E Y
E05E Y
E05E Y
Y
Y
E05E Y
ROLE POOL PVOL
RCLS 01 S70470
MIGR 01 JA8149
RCLT 01 S70421
MIGR 01 JA8145
RCLS 03 310112
IDLE 00
IDLE 00
RCLT 03 S70479
LVOL
Z09866
Z04381
Z09866
Z08629
XC4487
XC4487
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