Backup Requirements; Client Access To An Spd Server Domain; Libname Created With Backup= Option; Example Libnames.parm Statements - SAS Scalable Performance Data Server 4.5 Administrator's Manual

Backup Requirements

Client Access to an SPD Server Domain

The client that performs the backup does not have to execute on the same machine as the
SPD Server. However, the client must be able to access the physical path of the SPD Server
domain that is being backed up. Access by the client to the physical path of the domain can
be direct or through a network connection.

LIBNAME Created with BACKUP= Option

Before a table is eligible for backup, you must create the SPD Server LIBNAME domain
using the
entries from a data's server's libname parameter file, libnames.parm, to explain how
domains are processed with and without the

Example Libnames.parm Statements

No Backup Statement and Can Backup Statement Examples
libname=nobackup pathname=/usr/foo/test;
libname=canbackup pathname=/usr/foo/test BACKUP=YES;
The entry for the LIBNAME domain called
usr/foo/test
through this domain definition are ineligible for backup. In contrast, the entry for the
LIBNAME domain
test
are eligible for backup.
When spdsbkup performs a backup, it checks every table in
based on our example parameter file entries, spdsbkup backs up only the eligible tables
in
BACKUP=NO
of these is in effect will be able to be backed up.
Incremental Backups Requires a Prior Full Backup
Before you can do an incremental backup of an SPD Server table, you must do a full backup
of the table. You have two alternatives for the full backup:
•
•
After a full backup has been performed for an SPD Server table, you can then proceed with
an incremental backup strategy. The first incremental backup saves all table changes that
were performed after the last full backup date. Each successive incremental backup saves
the changes that were made after the previous incremental backup.
option in the parameter file. Here are two example LIBNAME
BACKUP=YES
, but no
BACKUP=
canbackup
, has the
BACKUP=YES
. On the client connections created using pass-through or LIBNAME, the
canbackup
LIBNAME option can be used to override. Tables that are created when either
Use the system's full backup utility, and then inform spdsbkup of the system's last full
backup date.
Use spdsbkup to perform a full backup, if none has been done before.
Example Libnames.parm Statements
BACKUP=
nobackup
option is specified. For this reason, tables created
, which also creates tables in the directory
option. As a consequence, tables created through this domain
option:
creates tables in the directory
/usr/foo/
. However,
/usr/foo/test
235
/