Microsoft® Windows Server™ 2003 Inside Out

Managing Shadow Copies in Computer Management

Shadow copies are configured on a per-volume basis. Each volume on a server that has shared folders must be configured separately for shadow copying.

Tip

Defragment volumes before enabling shadow copies

Shadow copies can become corrupted on volumes that are heavily fragmented. It is recommended that you defragment volumes before enabling shadow copies.

Troubleshooting: Be careful when defragmenting

If you defragment a volume while shadow copies are enabled, the oldest shadow copies can be lost. Shadow copy loss can occur because the shadow copy provider uses a copy-on-write approach that uses a 16-kilobyte ...