Now the logical volume is only “incorrectly” mirrored with regard to hdisk59 and hdisk60. The situation is identical to hdisk38 and hdisk39. However, there is an additional complication here: this time there is no free physical partition on either physical volume available.
We consider here hdisk59 (DC01). The case for hdisk60 (DC02) could be used analogously. In the data center DC01 there is the physical volume hdisk27, which has a few free physical partitions. The physical volume hdisk27 is currently not used by our logical volume! We temporarily migrate one physical partition from hdisk59 (DC01) to hdisk27 (DC01):
# migratelp lv_scc/6895/2 hdisk27
0516-1291 migratelp: Mirror copy 2 of logical partition 6895 of logical volume
lv_scc migrated to physical partition 2036 of hdisk27.
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We have thus gained a free physical partition on hdisk59 (DC01).
To reduce this to case A1, we have to migrate at least one physical partition of mirror copy 1 to hdisk59 in a logical partition that occurs in the logical volume after the highest occurrence of hdisk59. This logical partition must be correctly mirrored between the data centers! We use the highest logical partition (40117) and migrate the physical partition from mirror copy 1 from hdisk45 (DC01) to hdisk59 (DC01):
# migratelp lv_scc/40117/1 hdisk59
0516-1291 migratelp: Mirror copy 1 of logical partition 40117 of logical volume
lv_scc migrated to physical partition 1 of hdisk59.
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