HP 4000S Guia do Utilizador descarregar pdf (Página 110)

Shadow Copies

110 NAS 4000s and 9000s Administration Guide

Recovering an Overwritten or Corrupted File

Recovering an overwritten or corrupted file is easier than recovering a deleted file because the

file itself can be right-clicked instead of the folder. To recover an overwritten or corrupted file

use the following procedure:

1. Right-click the overwritten or corrupted file and click Properties.

2. Select Previous Versions.

3. To view the old version, click View. To copy the old version to another location, click

Copy... to replace the current version with the older version, click Restore.

Recovering a Folder

To recover a folder use the following procedure:

1. Position the cursor so that it is over a blank space in the folder that will be recovered. If the

cursor hovers over a file, that file will be selected.

2. Right-click the mouse, select Properties from the bottom of the menu, then click the

Previous Versions tab.

3. Choose either Copy or Restore.

4. Choosing Restore enables the user to recover everything in that folder as well as all

subfolders. Selecting Restore will not delete any files.

Backup and Shadow Copies

As mentioned previously, Shadow Copies are only available on the network via the client

application and only at a file or folder level as opposed to the entire volume. Hence the

standard backup associated with a volume backup will not work to back up the previous

versions of the file system. To answer this particular issue, Shadow Copies are available for

back up in two situations. If the backup software in question supports the use of Shadow

Copies and can communicate with underlying block device, it is supported and the previous

version of the file system will be listed in the backup application as a complete file system

snapshot. Lastly, if the built in backup application NTbackup is utilized, the backup software

forces a snapshot and then uses the snapshot as the means for backup. The user is unaware of

this activity and it is not self evident although it does address the issue of open files.

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HP 4000S Guia do Utilizador Página 110