Chapter 10. Copy services 577
10.7.19 Remote Copy configuration limits
Table 10-10 lists the Metro Mirror and Global Mirror configuration limits.
Table 10-10 Metro Mirror configuration limits
For further details on the configuration limits, please see V8.1.x Configuration Limits and
Restrictions for IBM Storwize V5000 and V5030F at the following link:
https://ibm.biz/BdjSJd
Parameter Value
Number of Metro Mirror or Global Mirror
Consistency Groups per system
256
Number of Metro Mirror or Global Mirror
relationships per system
4096
Number of Metro Mirror or Global Mirror
relationships per Consistency Group
No limit is imposed beyond the Remote Copy
relationships per system limit.
Total volume size per I/O Group There is a per-I/O Group limit of 1024 terabytes (TB) on
the quantity of master and auxiliary volume address
spaces that can participate in Metro Mirror and Global
Mirror relationships. This maximum configuration uses all
512 MiB of bitmap space for the I/O Group and allows 10
MiB of space for all remaining copy services features.
Total number of Global Mirror with
Change Volumes relationships per
system
256
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