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Chapter 5, NetBackup Configuration 81

Configuration Tips

Maximum Pathname Length

For frozen image backups, the maximum pathname length is 1000 characters (as opposed

to 1023 characters for backups that do not use a frozen image method). This is because the

frozen image is created on a new mount point which is added to the beginning of the file

path. If this new mount point plus the original file path exceeds 1023 characters, the

backup fails with a status code 1, “the requested operation was partially successful.”

Refer to the NetBackup DataCenter System Administrator’s Guide for other NetBackup

file-path rules.

Frozen Image Source

◆ If the entries in the file list are regular files, specify the frozen image source as the

mounted file system that contains the files. Do not specify an individual file as the

frozen image source. See “Example 1: Basic File List Entries” on page 82. When the

backup occurs, only the files in the file list are backed up, not the entire file system.

◆ In the file list, be sure to specify absolute path names. Refer to the NetBackup

DataCenter System Administrator’s Guide for UNIX for help specifying files in a file list.

◆ If the file list includes files that do NOT reside within a frozen image source, and the

Allow frozen image clients attribute is selected, the backup will fail.

◆ If an entry in the file list is a symbolic (soft) link to another file, ServerFree Agent

backs up the link, not the file to which the link points. This is standard NetBackup

behavior. To back up the actual data, include the file path to the actual data in the file

list. The frozen image source should be the mounted file system that contains the

actual data. See “Example 2: Symbolic Links” on page 83.

◆ On the other hand, a raw partition can be specified in its usual symbolic-link form

(such as /dev/rdsk/c0t1d0s1): you do not have to specify the actual device name

that /dev/rdsk/c0t1d0s1 is pointing to. For raw partitions, ServerFree Agent

automatically resolves the symbolic link to the actual device.

◆ The Cross mount points policy attribute is not available for policies that are

configured for frozen images. This means that NetBackup will not cross file system

boundaries during a backup of a frozen image. A backup of a high-level file system,

such as / (root), will not back up files residing in lower-level file systems unless those

file systems are also specified as separate entries in the file list. To back up /usr and

/var, for instance, both /usr and /var must be included as separate entries in the

file list.

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Seagate ST39175LW Guía para resolver problemas Pagina 95