Practical implications of Windows high-end storage backup and restore

This chapter excerpt briefly discusses the practical implications of the volume shadow copy service.

Inside Windows Storage This chapter excerpt from Inside Windows Storage, by Dilip C. Naik is printed with permission from Addison-Wesley/Prentice Hall, Copyright 2003.

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High-end storage, which can track metadata on a per-sector basis, allows backup/restore operations to be more efficient by allowing changes to be tracked very closely and having backup operations deal with just changed data.

To be certain that a snapshot is consistent from an application's point of view, it is essential to have the operating system (including file systems) and the application participate in the process of flushing the cache and temporarily suspending write operations while the snapshot is made. The volume shadow copy service shipping with Windows Server 2003 provides the needed operating system and file system support, as well as architecture for the needed application support. Microsoft Exchange and Microsoft SQL Server are two important applications that will take advantage of this architecture.

It remains to be seen how quickly other vendors adopt and support the volume shadow copy architecture.


WINDOWS BACKUP AND RESTORE TECHNOLOGIES

  Introduction
  Tip #1: Reasons for backup and restore
  Tip #2: Backup problems
  Tip #3: Backup classifications
  Tip #4: Windows 2000 backup utility
  Tip #5: Techniques to create a volume snapshot
  Tip #6: XP and Windows 2003 volume shadow copy service
  Tip #7: Windows-powered NAS devices and snapshots
  Tip #8: Network Data Management Protocol
 Tip #9: Practical implications
  Tip #10: Summary

About the author: Dilip C. Naik has more than twelve years of experience in various roles at Microsoft, including software engineer, program manager, and technical evangelist. His contributions include writing CIFS/SMB code, CIFS-related RFCs, code and documentation for the Windows NT Installable File System Kit, as well as Windows Management Instrumentation (WMI) and performance/management (including storage management) features for the Windows platform. Dilip has also represented Microsoft on a number of industry standards organizations.

This was first published in April 2005

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