Chapter 9.3.3. Creating multiple identical copies of a VDisk

Page 153

Chapter 9. Copy services 153 7. After the Consistency Group is prepared, you can then quiesce the host by forcing the host and the application to stop I/ Os and flush any outstanding write I/ Os to disk. This process differs for each application and for each operating system. One guaranteed way to quiesce the host is to stop the application and unmount the VDisks from the host. 8. As soon as the host completes its flushing, you can the start the Consistency Group. The FlashCopy start completes very quickly ( at most, a few seconds). 9. When the Consistency Group has started, you can then unquiesce your application ( or mount the VDisks and start the application), at which point ...

Get SAN Volume Controller: Best Practices and Performance Guidelines now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.