Software

Cache Residency
Manager
Volumes that have Cache Residency Manager settings can be assigned to Business Copy pairs, and
Cache Residency Manager operations can be performed on Business Copy P-VOLs and S-VOLs.
Caution: See “Performance Considerations” on page 45 for important information on performing quick
restore operations on volumes that have Cache Residency Manager settings.
LUN Manager
LUN Security operations do not affect Business Copy operations. Volumes that are under secure ports
and/or that are assigned to World Wide Name (WWN) groups and/or LUN groups can also be
assigned to Business Copy pairs. Volumes that are assigned to Business Copy pairs can also be assigned
to secure ports, WWN groups, and/or LUN groups for LUN Security.
Note: Business Copy S-VOLs cannot be accessed by any host except when the pair is split.
Data Retention Utility
Business Copy can create pairs using volumes to which access attribute is set by Data Retention Utility.
However, you cannot create a Business Copy pair specifying the volume with S-VOL Disable attribute as
an S-VOL.
The following table shows whether you can or cannot specify the volume with access attribute as a
P-VOL or S-VOL of a Business Copy pair.
Table 4 Access Attribute and Availability as a Volume of Business Copy Pair
Access Attribute
Availability as a Volume of Business Copy Pair
P-VOL S-VOL
Read/Write
OK OK
Read Only (Volume)
OK OK
Protect
OK OK
S-VOL Disable
OK
NO
The following table shows whether you can or cannot perform the Business Copy operations to the
volume with S-VOL Disable attribute.
Table 5 Availability of Business Copy Operations to the Volume with S-VOL Disable
Attribute
Business Copy Operations
Availability of Business Copy Operations
P-VOL S-VOL
Paircreate
OK
NO
Pairsplit
OK
NO
Paircreate and Pairsplit *
OK
NO
Forward Pairresync
OK
NO
Backward Pairresync
NO NO
Suspend
OK
NO
Delete
OK OK
* Paircreate and Pairsplit means that you simultaneously create and split Business Copy pairs (see
“Performing Pair Creation and Pair Splitting”onpage76).
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About Business Copy Operations