Backup and Restore 2 Manual

Backup and Restore 2 Overview
Backup and Restore 2 Manual—522696-019
1-6
Open System Services (OSS)
A hard-linked file has multiple file names associated with a single inode number. The
inode number is the internal storage pointer to the disk file. Ordinary files and named
pipes can be hard-linked files. To back up or restore hard-linked files, you must back
up and restore the complete set of files.
Named Pipes
A named pipe is an OSS file used for unidirectional, FIFO, interprocess
communication. One process writes to the named pipe and another reads from it.
Specifying a named pipe causes the named pipe to be backed up as a named pipe.
Ordinary Files
Specifying an ordinary file causes that file to be backed up.
Restricted-Access Filesets
Unless explicitly denied, the super ID has unconditional access to all resources on the
system. The super ID can login to the system as any user without a password for
administrative maintenance or other activities.
The Restricted-Access filesets provide for securing highly sensitive customer data by
preventing the super ID (255, 255 in the Guardian environment, 65535 in the OSS
environment) from accessing files it does not own. When accessing a file in a
restricted-access fileset, the super ID is restricted by the same file permissions and
owner privileges as any other user ID; It has no special privileges.
The members of the Safeguard SECURITY-OSS-ADMINISTRATOR security group can
access restricted filesets. Additionally, the members can back up and restore files from
and to the restricted-access filesets when the PRIVSOARFOPEN file privilege for the
BR2DS, BR2DMA, BR2ODS, and BR2ODMA executables are set.
For information on Restricted-Access filesets and the PRIVSOARFOPEN file privilege,
see the Security Management Guide and the Open System Services Management and
Operations Guide.
Unrestricted Filesets
The super ID has unconditional access and privileges on unrestricted filesets. The
members of the SECURITY-OSS-ADMINISTRATOR security group can access
unrestricted filesets only if they have appropriate privileges and the filesets have the
required permissions set.
Note. Restricted-access filesets are supported only on OSS file systems and on systems
running J06.11 and later J-series RVUs and H06.22 and later H-series RVUs.