O'Reilly logo

Storage Networking Fundamentals: An Introduction to Storage Devices, Subsystems, Applications, Management, and Filing Systems by Marc Farley

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 17

1: What is point-in-time copy used for?
A1: Answer: To re-create consistent data for business continuity
2: Can you use host write caching with point-in-time copy?
A2: Answer: Yes, but you must flush host buffers before detaching secondary storage.
3: Which type of point-in-time copy requires the most storage capacity?
A3: Answer: Whole volume snapshots
4: True or false: By default, backup systems automatically create historical copies of data.
A4: Answer: False. They make backup copies that are eventually overwritten. You should make separate tapes or tape pools for historical archiving.
5: True or false: File system snapshots create extra copies of data.
A5: Answer: False. They keep old data blocks from being returned to the free block pool. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required