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Hitachi TAGMASTORE MK-90RD011-25 User Manual

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Chapter 4 Performing CCI Operations

1. horctakeover Communication with the primary

site is disabled. Accordingly, SVOL-takeover is
executed SVOL-SSUS-takeover. The secondary
volume is R/W-enabled.

2. -x mount

The file system is mounted for R/W using the CCI
subcommand.

3. chkdsk

Conformability of the file system is checked.

4. Server software activation

The server DB software is activated, and the
database is rolled back and rolled forward.

5. Application activation

The user program is activated.

Takeover

Command

1. horctakeover
2. -x mount
3. chkdsk
4. Server software activation
5. Application activation

User’s Script

User’s Environment

Activation from

HA software

Manual activation

Execution

Log

S-VOL

SMPL or SVOL_SSUS

End of pairing.
R/W is enabled.

HORC

Manager

Figure 4.26 Application/Example of TrueCopy Takeover (Windows-based System)