Oracle Secure Backup 10.3, Руководство по установке и настройке, Страница: 101 / 174

Adding Tape Devices to an Administrative Domain
Configuring and Managing the Administrative Domain 5-19
■
Storage element range or list
Select this option for a numeric range of storage element addresses. Enter a
range in the field, for example,
1-20 .
■
All
Select this option to specify all storage elements. For tape libraries with single
tape drives, you can select this option to use all tapes. This is the default
setting.
■
None
Select this option to indicate that no storage elements have yet been specified.
If you select
All or Storage element range or list , then this option is no longer
visible.
Oracle Secure Backup allows all tapes to be accessed by all tape drives. The use list
enables you to divide the use of the tapes for tape libraries in which you are using
multiple tape drives to perform backups. For example, you might want the tapes
in half the storage elements to be available to the first tape drive, and those in the
second half to be available to the second tape drive.
20.
Click OK to save your changes.
Discovering Tape Devices Automatically on NDMP Hosts
Oracle Secure Backup can detect changes in tape device configuration for some types
of hosts accessed by NDMP, such as a
filer , and it can automatically update the
administrative domain device configuration based on this information,.
Oracle Secure Backup detects and acts on these kinds of changes:
■
Tape devices that were not previously part of the administrative domain are
discovered. For each such tape device, Oracle Secure Backup creates a device with
an internally-assigned name and configures a device attachment for it.
■
If a previously configured tape device has an attachment, then Oracle Secure
Backup adds an attachment to the existing device.
■
If a previously configured tape device has lost an attachment, then Oracle Secure
Backup deletes the attachment from the device.
Oracle Secure Backup detects tape devices that have multiple attachments by
comparing the serial numbers for each tape device reported by the operating system.
Oracle Secure Backup also determines whether any discovered tape device is
accessible by its serial number. If the tape device is accessible by serial number, then
Oracle Secure Backup configures each device attachment to reference the serial
number instead of any logical name assigned by the operating system.
To discover tape devices attached to an NDMP host:
1.
On the Hosts page select the name of the NDMP host in the list of hosts.
2.
Click Discover .
If changed tape devices are discovered, then the Oracle Secure Backup Web tool
displays a message similar to the following:
Info: beginning device discovery for host_name
host_name _c0t0l0 (new library)
WWN: [none]
new attach-point on host_name , rawname c0t0l0
host_name _c0t0l1 (new drive)