Dell PowerVault NX3500 - Manual (Page 12)

12
NDMP Environmental
Variables Supported
Description Default
file based file history will be generated. The value “y” specifies that
the default file history type (which is the node/dir format) will be
generated. The value “n” means that no file history will be
generated.
DIRECT Specifies whether the restore is a Direct Access Retrieval. Valid
values are “Y” and “N”.
Y
UPDATE Specifies whether the dump level and dump time for a backup
operation should be updated on the NDMP Server so subsequent
backups can reference the dump level from previous backups.
Valid values are “Y” and “N”.
Y
EXCLUDE Specifies a pattern for matching to files that are not to be backed
up. The environment variable is a list of string separated by
comma. Each entry will be used to match to nodes encountered
during backup. The string can contain an asterisk (“*”) as the wild
card character. At most 32 comma separated strings will be
supported. Entries containing “,” should be escaped with the “\”
character. Entries containing the “\” character should also be
escaped with the “\” character.
No
default
exclude
pattern
RECURSIVE Specifies whether the restore should be recursive or not. Valid
values are “Y” and “N”. If this variable is set to “N”, then only the
files that are the immediate children of the restore target are
restored.
Y
RESTORE_OVERWRITE Specifies whether the restore operation should overwrite existing
files with the backup data. Valid values are “Y” and “N”.
Y
LISTED_INCREMENTAL This environment controls behavior similar to the “listed
incremental” option of the tar application. Using this environment
variable, the user can specify whether additional directory listing is
added to the backup stream during incremental backup so that
the recovery operation can handle files and directories deleted
between the incremental backups.
During backup, if this variable is set, then additional directory
listing will be added to the backup data stream. Because of the
additional process required, this could impact the backup data
stream size and performance.
During recovery, if this variable is set and if the backup data
stream was generated with this variable turned on, then NDMP
server will handle deleting files and directories that are deleted
between incremental backups.
Setting this variable will require additional processing time and
enlarge the backup data stream size (how much it change will
depend on the number of elements in the backup data set). If this
feature is not important to the end user, it should not be set.
N