Adaptec APA-358 Bedienungsanleitung PDF herunterladen (Seite 55)

to 2GB, if this option were checked. The default setting is

not checked.

Note > If the disk drive is larger than the backup tape leaving the disk

partially un-partitioned is a viable interim backup solution.

Pause During User I/O

With this setting enabled, SnapBack will pause the backup

when user I/O is sent to the server, giving the user top

priority. To maintain server responsiveness during backup,

leave this option set (the default).

Spanning/Cascading

This setting allows SnapBack to span tapes when backing

up large hard drives or cascade across multiple tape drives.

In order to span or cascade, this option must be checked.

The default is not checked.

Note > Spanned or cascaded tapes cannot be mounted by TD-ROM.

NT Services Management

The SnapBack Open Transaction Manager requires a very

brief period of time (called the quiescent window) where

there are no disk writes before the backup can begin. Some

applications continually write to the server hard drives

making it impossible to achieve this quiescent window.

When SnapBack does not start a backup due to too much

server activity, you have the following choices:

1. Change the application’s writing habit. Example,

Microsoft Exchange server polls the hard drive every 5

seconds as a default. This is configurable in Exchange,

SnapBack Live! 55

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Adaptec APA-358 Bedienungsanleitung Seite 55