Supported operations and options

True Copy User Guide for VSP One Block

Version
10.5.x
Audience
anonymous
Part Number
MK-23VSP1B020-06
ft:lastEdition
2026-05-04

The following table lists TC/TCz operations and indicates whether the operation is supported by CCI.

Category

Operation type

Option

CCI support

Pair operations

Create TC pairs

(no option)

Yes

Initial Copy Type

Yes

Copy Pace1

Yes1

Initial Copy Priority

No (fixed to 32)

Difference Management

No (fixed to Auto)

CFW Data

Yes

Whether the primary storage system keeps using the pair or splits the pair if DFW data cannot be copied to the S-VOL

Yes

Host I/O Time Stamp Transfer

Yes

Split pairs

(no option)

Yes3

SSB Transfer (F/M = FB)

Yes

Primary Volume Write

Yes

Resync pairs

(no option)

Yes

Primary Volume Fence Level

Yes

Copy Pace1

Yes1

Copy Priority

No (fixed to 32)

CFW Data

No (use the current setting)

Host I/O Time Stamp Transfer

Yes (use the current setting)2

Delete pairs

(no option)

Yes3

Delete Mode

Yes

Edit pair options

(no option)

No

Path operations

Add remote connections

(no option)

Yes

Minimum Paths

No (fixed to 1)

RIO MIH Time (sec)

No (fixed to 15 sec.)

FREEZE Option

No (fixed to Disable)

Round Trip Time (msec)

No (fixed to 1 msec)

Remove remote connections

(no option)

Yes

Add/remove remote paths

(no option)

Yes

Add/remove SSIDs

(no option)

Yes

Change RCU options

(no option)

Yes

Minimum Paths

Yes

RIO MIH Time (sec)

Yes

FREEZE Option

Yes

Round Trip Time (msec)

Yes

Other operations

Edit remote replica options

(no option)

Yes

Change CU options

(no option)

No

View history

(no option)

No

Notes:

  1. For CCI, you use the track size parameter with basically the same track settings: if you specify 1-3, 3 tracks are used, and if you specify 4-15, 15 tracks are used.
  2. You can only specify "enable" for the -transfer_ts option (Host I/O Time Stamp Transfer) of the raidcom add remote_copy_pair command if Remote Copy Function Switch #36 is enabled.

    Specify "enable" for the -transfer_ts option if you want to use the following functions for TCz pairs:

    • ATTIME Suspend when used in a 3DC cascade configuration. The Host I/O Time Stamp Transfer option is necessary to support the ATTIME Suspend of an SIz pair that is cascaded with the TCz S-VOL/URz P-VOL in the intermediate site.
    • In a 3DC cascade configuration when the related URz restore journal is in an extended consistency group.
  3. If you issue a split or delete instruction from CCI to the S-VOL of a TrueCopy for Mainframe pair in duplex status, the P-VOL enters Suspend status and an F/M = FB message is output to the host connected to the primary storage system.