HP XP P9000 Continuous Access Synchronous for Mainframe Systems User Guide

- A split command is in progress.
- I/O processing begins.
In such a case, resynchronize the consistency group and then run the split command again.
Host access after suspension
You can specify settings for read/write access to the P-VOL and S-VOL in consistency groups after
pairs are suspended. These settings are specified using RAID Manager or Business Continuity
Manager.
• The RAID Manager settings for Cnt Ac-S are optional.
• The Business Continuity Manager settings for Cnt Ac-S Z are required.
The following tables show the effects of the settings on read and write access.
Cnt Ac-S Z P-VOLCnt Ac-S P-VOLSettingInterface
WriteReadWriteRead
NYNYWrite access prohibitedRAID Manager
*
YYYYNo option selected
NYNYWrite access prohibitedBusiness Continuity
Manager
YYYYWrite access permitted
* The effect on read/write shown in this table applies to the Cnt Ac-S P-VOL. When RAID Manager is used with a
Cnt Ac-S Z P-VOL, the effect is the same as "No option selected."
Cnt Ac-S Z S-VOLCnt Ac-S S-VOLSettingInterface
WriteReadWriteRead
NNNYRead access permittedRAID Manager
*
YYYYRead/Write access permitted
NNNYNo option selected
NNNYWrite access prohibitedBusiness Continuity
Manager
YYYYWrite access permitted
* The effect on read/write shown in this table applies to the Cnt Ac-S S-VOL. When RAID Manager is used with a Cnt
Ac-S Z S-VOL, the effect is the same as "No option selected".
Pair status before and after a split operation
Pairs in the same consistency group must be in PAIR/Duplex status when you begin the split
operation in order to maintain consistency. Otherwise, when the operation completes, pair status
will be inconsistent.
Consistency group planning 45