The following table lists the requirements for the ATTIME suspend function for ShadowImage for Mainframe combined with TrueCopy for Mainframe
| Item | Description |
|---|---|
| Supported versions | To use the ATTIME suspend function, the primary site, the secondary sites, and Business Continuity Manager must all support the ATTIME suspend function. In the following case, the ATTIME suspend function can be used for the primary volume of a ShadowImage for Mainframe pair combined with the primary volume of a TrueCopy for Mainframe pair: Business Continuity Manager version is 02-00 or greater In the following case, the ATTIME suspend function can be used for the primary volume of a ShadowImage for Mainframe pair combined with the secondary volume of a TrueCopy for Mainframe pair: Business Continuity Manager version is 9.9.0 or later |
| Interface | You can operate the ATTIME suspend function (register, cancel, and check split time) from Business Continuity Manager. You cannot operate the function from CCI, PPRC commands, GDPS, or CSM. |
| Host I/O timestamp transfer | When you use the ATTIME suspend function, run the raidcom add remote_copy_pair command with the -transfer_ts option to enable host I/O timestamp transfer. If the timestamp transfer option is not enabled, the consistency of the data in the consistency group of the ShadowImage for Mainframe pair is not guaranteed. For details about how to enable host I/O timestamp transfer, see (4) Operation flow (on page xx). |