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Inside Windows Storage: Server Storage Technologies for Windows® 2000, Windows® Server 2003, and Beyond by Dilip C. Naik

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9.4. Local and Remote Mirroring

Mirroring was mentioned in Section 9.1 but not examined in detail. Mirroring is simply making a duplicate copy of the data available to ensure that another copy of the data is available in case the primary data store becomes unavailable for some reason.

Some popular reasons for mirroring or replication include the following:

  • To provide a disaster recovery solution

  • To provide load distribution or content distribution

  • To provide high availability

  • To use a secondary volume for data warehousing, backup, or testing with live data

Mirroring is local or remote. Local mirroring can happen at various levels:

  • Application level in the host server. The application issues two identical write requests to two different disks, as ...

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