Seagate ST39175LW Anleitung zur Fehlerbehebung PDF herunterladen (Seite 104)

Cache for nbu_snap (Parameter Value field)

90 NetBackup ServerFree Agent System Administrator’s Guide

Cache for nbu_snap (Parameter Value field)

Note the following regarding the cache for nbu_snap, specified in the Parameter Value

field of the Frozen Image Client Configuration display:

◆ The cache specifies a raw disk partition: either a logical volume or physical disk. This

is used for storing the portions of the frozen image source that are changed by

incoming write requests while the snapshot is in progress.

◆ Do not specify an active partition containing valuable data. Any data in that partition

will be lost when the nbu_snap snapshot process is complete.

◆ Enter the full path name of the raw partition. Do not specify wildcards (such as

/dev/rdsk/c2*) as paths.

◆ Specify the actual character special device file. nbu_snap will not work for block

special device files.

Basic Requirements For Cache Partition

◆ Must reside on the same host as the frozen image source that you have specified.

◆ For offhost backup, the host containing the frozen image source and cache must be

visible to NetBackup (refer to the chapter titled “SAN Configuration for ServerFree

Agent”).

◆ Must be unmounted.

◆ Must have enough space to hold all the writes to the partition that may occur during

the backup. Note that backups during nonworking hours normally require a smaller

cache than a backup during peak activity.

◆ If an offhost backup method is used, the disk containing the cache must meet the

requirements spelled out under “Disk Requirements for Offhost Backup” on page 122.

1 2 ... 99 100 101 102 103 104 105 106 107 108 109 ... 181 182

Keine Kommentare

Seagate ST39175LW Anleitung zur Fehlerbehebung Seite 104