TrueCopy operations take place between a primary storage system and a secondary storage system. The primary storage system communicates with the secondary storage system over dedicated Fibre Channel or iSCSI data paths called remote copy connections.
- Managing host I/O operations to the P-VOL.
- Managing initial copy and update copy operations between the P-VOL and the S-VOL.
- Managing pair status and configuration information.
The secondary storage system is responsible for the following:
- Managing copy operations issued by the primary storage system to the S-VOL.
- Assisting in the management of pair status and configuration (for example, rejecting write I/Os to the S-VOL).
If the primary storage system is VSP 5000 series, the secondary system can be VSP 5000 series, VSP G1x00, VSP F1500, VSP, VSP E series, VSP G130, or VSP G/F350, G/F370, G/F700, G/F900.
For VSP 5000 series,the CU can function simultaneously as a primary storage system for one or more P-VOLs and as a secondary storage system for one or more S-VOLs. This configuration requires that data paths and ports are configured for both copy directions.
If the primary storage system is VSP G/F350, G/F370, G/F700, G/F900, the secondary system can be VSP 5000 series, VSP G1x00, VSP F1500, VSP E series, VSP G/F350, G/F370, G/F700, G/F900, VSP G200, G400, G600, G800, VSP F400, F600, F800, or HUS VM.
If the primary storage system is VSP E990, the secondary system can be VSP E series, VSP G/F350, G/F370, G/F700, G/F900, VSP G200, G400, G600, G800, VSP F400, F600, F800, VSP 5000 series.