Veritas NetBackup™ 8.0Lotus Notes管理员指南-UNIX、Windows和Linux-版本8.0 (Veritas NetBackup™ 8.0 Lotus Notes Administrator's Guide for UNIX, Windows, and Linux Release 8.0)

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DescriptionTransaction logging

style

When you enable archive-style logging, transaction log

extents are generated as needed and are limited in number

only by the capacity of your mass storage. Archive-style

transaction log extents must be backed up, unlike

circular-style and linear-style transaction log extents, which

cannot be backed up. They can be used as the incremental

backup for all logged databases. Backups of the archive-style

transaction log extents ensure that the transaction log extents

are marked as available to be recycled. These backups also

prevent your mass storage from filling up. Unlike circular-style

and linear-style logging, archive-style logging does not limit

the point in time to which a database can be recovered. With

archive-style logging enabled, a logged database can be

recovered to any point in time. This time can be any time

between when the database itself was last backed up to the

current time.

Archive

See “About recycling Lotus database transaction log extents” on page 13.

See “About supported Lotus Notes database configurations” on page 9.

About recycling Lotus database transaction log

extents

Following either a successful full backup or differential incremental backup,

archive-style transaction log extents are marked as ready to be recycled. The

database agent does not delete the successfully backed up transaction log extents.

The Domino server manages when a transaction log extent is recycled.

See “About Lotus database transaction logging styles” on page 12.

See “About supported Lotus Notes database configurations” on page 9.

About Lotus Notes backup operations

NetBackup provides the following methods to perform backups:

■ Automatic backups

■ Manual backups

■ User-directed backups

13Introduction to NetBackup for Lotus Notes

About recycling Lotus database transaction log extents

For more information on these backup methods and other administrator-directed

activities, see the NetBackup Administrator’s Guide, Volume I.

With automatic backups, the NetBackup administrator can schedule backups to

occur automatically and unattended, under the control of the NetBackup master

server.

The manual backup lets the administrator initiate a full backup or incremental backup

that is set up in the policy manager. The manual backup option can be useful for

the following situations:

■ To test a configuration

■ When workstations miss their regular backups

■ Before installing new software (to preserve the old configuration)

■ To preserve records before a special event such as when companies split or

merge

In some cases, it may be useful to create a policy and schedule that you use only

for manual backups. Create a manual backup policy by defining a single schedule

that does not have a defined backup window (and therefore never executes

automatically).

User-directed backups require a User Backup schedule type to be defined in the

Lotus-Notes policy. User-directed backups of Lotus Notes databases are similar to

backups of normal files.

A user backup of Lotus Notes databases and transaction log extents is identical to

a full backup with one exception. Transaction log extents are not marked as ready

to be recycled after they are successfully backed up. Because transaction log

extents are not recycled, a user backup is similar to a snapshot of the databases

at a given point in time. The content of ongoing full and incremental backups is not

affected. A user backup is not automatically scheduled and must be initiated on the

target client machine.

See “About supported Lotus Notes database configurations” on page 9.

See “About Lotus database transaction logging styles” on page 12.

See “About performing backups and restores of Lotus Notes databases” on page 46.

See “About directives in the backup selections list for Lotus Notes policies”

on page 39.

See “About backups of Windows network shared folders and UNIX NFS directories”

on page 41.

14Introduction to NetBackup for Lotus Notes

About Lotus Notes backup operations

About Lotus Notes restore operations

An administrator can use the NetBackup client to browse for NetBackup for Lotus

Notes backups and select the ones to be restored and recovered. The database

agent supports both restore operations and recovery operations. A restore operation

lets a user restore any previously backed up Lotus Notes databases.

The following operations are performed during a database restore:

■ The Lotus Notes database is taken offline.

■ The Lotus Notes database (file data) is restored.

■ The Lotus change information is applied.

If recovery of logged databases is requested, it is done after all logged and all

unlogged databases are restored.

■ The Lotus Notes database is recovered (transactions from transaction logs are

applied).

■ The Lotus Notes database is brought online.

Once the restore is complete, NetBackup attempts to recover all logged databases

that were restored. The logged databases that were restored are rolled forward to

a specific point in time by using the appropriate transactions from the required

transaction logs. Then the databases are brought back online. Any required

transaction logs are restored automatically as part of the recovery operation if they

were previously backed up and recycled. Do not restore transaction log extents

manually.

With a server-directed restore, an administrator can browse Domino Server

databases and select the ones you want to restore. NetBackup lets you select the

NetBackup server from which files are restored, view the backup history, and select

items to restore. You can select a specific client or other clients that were backed

up by the selected NetBackup server.

When you redirect to a different client, you can restore to a client other than the

one that was originally backed up. You can redirect the Lotus databases or

directories. The administrator can direct restores to any NetBackup client (regardless

of which client performed the backup). To redirect a restore, the administrator can

use the NetBackup Administration Console on the master server or the Remote

Administration Console.

For the configuration that is needed for this type of redirected restore, see the

NetBackup Administrator’s Guide.

Redirecting a restore to a different path allows a user to restore Lotus Notes

databases to directories that are different from the directories from which the

databases were backed up.

15Introduction to NetBackup for Lotus Notes

About Lotus Notes restore operations

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