Administrator Guide

Environment Variable Description Used In Default Value
TYPE Species the type of backup and restore application. The valid values are:
• dump – NDMP server generates inode-based le history
• tar – NDMP server generates le-based le history
Backup
and
Restore
dump
FILESYSTEM Species the path to be used for the backup. The path must be a
directory.
Backup None
LEVEL Species the dump level for the backup operation. The valid values are 0
to 9.
Backup 0
HIST Species how le history is to be generated. The valid values are:
• d – Species that node/dir-format le history will be generated
• f – Species that le-based le history will be generated
• y – Species that the default le history type (which is the node/dir
format) will be generated
• n – Species that no le history will be generated
Backup y
DIRECT Species whether the restore is a Direct Access Retrieval. The valid
values are Y and N.
Backup
and
Restore
Y
UPDATE Species whether the dump level and dump time for a backup operation
should be updated on the NDMP server so that subsequent backups can
reference the dump level from previous backups. The valid values are Y
and N.
Backup Y
EXCLUDE Species a pattern for matching to directory and le names that are not
to be backed up. This environment variable is a list of strings separated
by commas. Each entry is matched against nodes encountered during
backup. The string can contain an asterisk (*) as the wildcard character,
but the asterisk must be the rst or last character of the pattern. A
maximum of 32 comma-separated strings are supported.
Backup No exclude
pattern is
specied by
default
RECURSIVE Species whether the restore should be recursive. The valid values are Y
and N. If this environment variable is set to N, only les that are the
immediate children of the restore target are restored.
Restore Y
RESTORE_OVERWRITE Species whether the restore operation should overwrite existing les
with the backup data. The valid values are Y and N.
Restore Y
LISTED_INCREMENTAL Species whether an additional directory listing is added to the backup
stream during incremental backup so that the restore operation can
handle les and directories deleted between the incremental backups.
This environment variable controls behavior similar to the listed
incremental option of the tar application. The valid values are Y and
N.
During backup, if this variable is set to Y, an additional directory listing is
added to the backup data stream. Because of the additional processing
required, this option could impact the backup data stream size and
performance.
During restore, if this variable is set to Y and the backup data stream was
generated with this variable set to Y, the NDMP server will handle
deleting les and directories that are deleted between incremental
backups. Setting this variable to Y requires additional processing time and
increases the backup data stream size (the size of the increase depends
on the number of elements in the backup data set). If this feature is not
important in your environment, this variable should not be set.
Backup
and
Restore
N
454 FluidFS Administration