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If you receive the error CMMVC7160E "The change volume could not be associated because the I/O group has insufficient free bitmap space" (or similar) then you must increase the bitmap space. To do so, you must issue commands to the SVC. Open an ssh (putty, etc) session to the SVC. First, list the IO groups with the command 'lsiogrp'
id name node_count vdisk_count host_count site_id site_name
0 io_grp0 2 285 36 2 A
1 io_grp1 0 0 36
2 io_grp2 0 0 36
3 io_grp3 0 0 36
4 recovery_io_grp 0 0 0
Then list the details for the IO group with the problem, for example 'lsiogrp 0'
id 0
name io_grp0
node_count 2
vdisk_count 285
host_count 36
flash_copy_total_memory 104.0MB
flash_copy_free_memory 102.3MB
remote_copy_total_memory 52.0MB
remote_copy_free_memory 51.4MB
mirroring_total_memory 20.0MB
mirroring_free_memory 20.0MB
raid_total_memory 40.0MB
raid_free_memory 37.5MB
maintenance no
compression_active no
accessible_vdisk_count 285
compression_supported yes
max_enclosures 10
encryption_supported no
flash_copy_maximum_memory 552.0MB
site_id 2
site_name A
Note the "flash_copy_free_memory". If this is at or near zero, then it must be increased.
Use the command 'chiogrp -feature flash -size xxxx 0' to change the size to xxxx megabytes, then use lsiogrp again to verify it was extended.
Then try your SVC command again (i.e. creating a change volume, etc).
[{"Type":"MASTER","Line of Business":{"code":"LOB57","label":"Power"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SWG60","label":"IBM i"},"Platform":[{"code":"PF012","label":"IBM i"}],"Version":"7.1.0"}]
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Document Information
Modified date:
07 January 2020
UID
ibm11168846