Oracle8i
Enterprise Edition for Windows NT Getting Started
Release 8.1.5 for Windows NT A68694-01 |
|
This chapter provides information on backing up and recovering
your database.
Specific topics discussed are:
Backing up and recovering your Oracle8i database is
one of the most critical operations that a database administrator (DBA)
performs. For this reason, it is extremely important to choose the correct
tools. The table below describes available backup and recovery tools and
makes recommendations on which tool to use with your:
Tool | Description | Analysis of Tool | To Use this Tool, See... |
---|---|---|---|
Oracle Enterprise Manager Backup Manager |
The Oracle Enterprise Manager Database Application Tools include a Backup Manager for backing up and recovering your Oracle8i database. The Backup Manager:
The Backup Manager enables you to back up and recover your database through a graphical user interface (GUI). This GUI enables you to use either of the two backup subsystems: |
Highly recommended for backing up and recovering your Oracle8i database because of capabilities and ease of use. Works in conjunction with Recovery Manager (RMAN.EXE). Backing up to tape requires an optional media management layer (MML) from a third-party vendor, such as Legato Storage Manager (LSM). LSM is included on your Oracle8i Enterprise Edition for Windows NT CD-ROM. |
Oracle Enterprise Manager Administrator's Guide. |
(RMAN.EXE) in command line mode |
Recovery Manager in command line mode is an Oracle8i tool that manages the process of backing up, restoring, and recovering files. Recovery Manager is automatically installed with Oracle8i Utilities. Recovery Manager uses a special PL/SQL interface to the server for invoking backup functions. The user is unaware of this interface and instead interfaces only with a command line. |
Command line usage only. Must clearly understand the command line syntax described in Oracle8i Backup and Recovery Guide before using. Backing up to tape requires an optional MML from a third-party vendor. |
Chapter 3, "Database Tools Overview" for instructions on accessing this tool and Oracle8i Backup and Recovery Guide for instructions on using this tool. |
Third-party vendor products |
Third-party vendors such as Legato provide tape backup software that works with Backup Manager and RMAN.EXE. |
Can back up to tape. Contact your third-party vendors for additional information. |
Legato Storage Manager Administrator's Guide and other third-party vendor documentation. |
OCOPY |
An Oracle executable that behaves like Windows NT's XCOPY command. OCOPY is needed when performing a hot backup manually (that is, backing up a tablespace that is in offline backup mode). |
Command line usage only. Can back up only to disk. Can only perform local backups. |
"Backing Up Files with OCOPY" and "Recovering Files with OCOPY" in this chapter. |
Use OCOPY for both hot and raw database file backups of the
following file types:
This table describes the two copy modes in which to use OCOPY:
This table describes the syntax to use when backing up all file types to hard disk or multiple diskettes:
Note: Always use a fresh diskette for each OCOPY procedure; do not use OCOPY to back up a file onto a diskette that contains part or all of another file backed up using OCOPY. |
The table below describes the syntax to use when recovering
all file types from hard disk or multiple diskettes.
Restore From... | File Type to Restore | Syntax |
---|---|---|
Hard Disk1 |
FAT or NTFS files |
Use the Windows NT COPY command. |
|
Logical raw |
C:\> OCOPY new_file \\.\c: |
|
Physical raw |
C:\> OCOPY new_file \\.\physicaldriveN |
Multiple diskettes2 |
FAT or NTFS files |
Note: First insert the diskette containing the initial part of the backed up file. |
|
Logical raw |
C:\> OCOPY /R a: \\.\c: |
|
Physical raw |
C:\> OCOPY /R a: \\.\physicaldriveN |
1
These
are files originally backed up without the /B option.
2 These are files originally backed up with the /B option. |
When running backups to tape drivers using LSM, you must
add LSM's BIN directory to the PATH. The default location of the directory
is C:\WIN32APP\NSR\BIN.
To add this directory to the PATH: