Oracle Secure Backup 10.3, Installation And Configuration Manual

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Adding Tape Devices to an Administrative Domain
5-18 Oracle Secure Backup Installation and Configuration Guide
9.
In the Debug mode list, select yes or no . The default is yes .
10.
In the World Wide Name field, enter a worldwide name for the tape device, if
required.
11.
If the tape drive is located in a tape library, then select the tape library by name
from the
Library list.
12.
In the DTE field, enter the data transfer element (DTE) .
13.
In the Automount field, select yes (default) or no to specify whether automount
mode is on or off. Enable the automount mode if you want Oracle Secure Backup
to mount tapes for backup and restore operations without
operator intervention.
14.
In the Error rate field, enter an error rate percentage or leave this field blank to
accept the default setting. The default is 8 .
The error rate is the ratio of restored write errors that occur during a backup job
divided by the total number of blocks written, multiplied by 100. If the error rate
for any backup is higher than this setting, then Oracle Secure Backup displays a
warning message in the
backup transcript .
Oracle Secure Backup also issues a warning if it encounters a SCSI error when
trying to read or reset the tape drive error counters. Some tape drives do not
support the SCSI commands necessary to perform these operations. To avoid these
warnings, error rate checking can be disabled by selecting
None .
15.
In the Blocking factor field, enter the blocking factor or leave this field blank to
accept the default setting. The default is 128 bytes.
The blocking factor value specifies how many 512-byte records to include in each
block of data written to tape. The default value is 128, which means that Oracle
Secure Backup writes 64K blocks to tape.
16.
In the Max Blocking factor field, enter the maximum blocking factor.
The largest value supported for the maximum blocking factor is 4096. This
represents a maximum tape block size of 2MB.
17.
In the Drive usage field, enter the amount of time the tape drive has been in use
since it was last cleaned and then select the time unit from the adjacent list.
18.
Leave the Current tape field empty during initial configuration. Update the tape
drive inventory after configuration, as described in "Updating a Tape Device
Inventory" on page 5-12.
19.
In the Use list group, select one of these options to configure the use list:
See Also:
"Tape Device Names" on page 5-11 for more information
on World Wide Names
Note: This option is not available for standalone tape drives.
See Also:
"Tape Drives" on page 1-5 for more information on
blocking factors and maximum blocking factors
Note: Device and operating system limitations might reduce this
maximum block size.