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