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Backup
Backing Up OpenVMS Systems
Chapter 5202
Files can be backed up from mounted FILES-11 ODS-2 or ODS-5
volumes only.
Limitations • Any file specifications that are entered into the GUI or passed to the
CLI must be in UNIX style syntax:
/disk/directory1/directory2/filename.ext.n
— The string should begin with a slash, followed by the disk,
directories, and filename, separated by slashes.
— Do not place a colon after the disk name.
— A period should be used before the version number instead of a
semi-colon.
— File specifications for OpenVMS files are case insensitive.
For example:
An OpenVMS file specification of:
$1$DGA100:[USERS.DOE]LOGIN.COM;1
must be specified in the form:
/$1$DGA100/Users/Doe/Login.Com.1
• There is no implicit version number. You always have to specify a
version number. Only file versions selected for the backup will be
backed up. If you wish to include all versions of the file, select them
all in the GUI window, or, using the CLI, include the file
specifications under the Only (-only) option, including wildcards for
the version number, as follows
/DKA1/dir1/filename.txt.*
•If the Do not preserve access time attributes (-touch) option
is enabled during a backup, the last accessed date will be updated
with the current date and time on ODS-5 disks. On ODS-2 disks, this
option has no effect, and all the dates remain unchanged.
• Rawdisk backups are not available on OpenVMS. There is no
equivalent to a “BACKUP/PHYSICAL”.
•The Backup POSIX hard links as files (-hlink), Software
compression (-compress), and Encode (-encode) options are not
available on OpenVMS.