HP B6960-90078 manual Backing Up Unix Disks as Disk Image Objects, 166

Backup

Backing Up UNIX Systems

NOTE It is recommended to have root permission on mounted NFS filesystems.

When to Use NFS Use NFS backup in either of the following situations:

Backup

•A system to be backed up is not a part of the Data Protector cell.

•You want to back up system platforms that are not supported by Data Protector.

To back up a filesystem using NFS, follow the procedure described in “Example of Creating a Backup Specification” on page 155 until you get to the Backup Object Summary page of the wizard. Proceed as follows:

1.In the Backup Object Summary page, click Manual Add.

2.Click the UNIX Filesystem button, and then click Next.

3.In the General Selection page, select a client and manually add the mount point in the Mountpoint text box. See online Help for details.

Backing Up UNIX Disks as Disk Image Objects

What Is a Disk A disk image backup is a high-speed backup of disks, disk partitions,

Image Backup? or logical volumes without tracking the file and directory structure stored on these data sources. Data Protector stores the disk image structure at the character level.

When to Use a Disk Image Backup

Where to Find Rawdisk Sections

Use a disk image backup in any of the following situations:

•You have lots of small files and a high backup speed is required.

•A full disk backup is needed, for example, for disaster recovery or before a major software update.

•A direct disk-to-disk connection is not possible and you want to duplicate a filesystem to another disk. The latter must be identical to the original disk.

On the HP-UX and Solaris systems, the rawdisk sections are usually listed in the /dev/rdsk directory. On HP-UX, raw logical volumes can be found in /dev/vg<XX>. The first letter of the new logical volume must be r, for instance /dev/vg01/rlvol2.

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