HP 20-Feb User Manual

Page 151

Advertising
background image

Chapter 4

Troubleshooting Common Problems 149

Chapter 4

The library is not efficiently

backing up data.

■

Check the network bandwidth from the host computer.

■

Check that the library’s drive(s) are on their own SCSI bus and

not daisy-chained to another tape drive or the hard drive.

■

Check that the server and file system have the processing

power and memory needed to stream the tape drive.

■

Ensure that the drive is clean. (See

Cleaning a Drive

on

page 87.)

■

Try a new tape. A marginal tape can cause performance

problems due to bad spots on the tape requiring retries.

■

Ensure that the backup software is using fixed-length records

(or blocks) to maximize throughput and has not defaulted to a

smaller record size. (64K should be sufficient.)

■

Ensure that the data is being compressed, however do not turn

on both software and hardware compression.

■

Check the size of the files. Backing up several small files can

impact performance.

Operations

Cannot remember the

administration menu

password.

■

Contact your service representative.

Need to abort internal test

cycle.

■

Press

[STOP]

. The current test loop completes, then the test stops.

It may take a few minutes to stop the current test loop.

Table 27

Troubleshooting Table

Problem

Solution

Advertising