HP 20-Feb manual Try a new tape. a marginal tape can cause performance

Table 27	Troubleshooting Table
Problem			Solution
The library is not efficiently		■	Check the network bandwidth from the host computer.
backing up data.		■	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		Chapter
			page 87.)
		■ Try a new tape. A marginal tape can cause performance
			problems due to bad spots on the tape requiring retries.	4
		■ 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		■	Contact your service representative.
administration menu
password.
Need to abort internal test		■	Press [STOP]. The current test loop completes, then the test stops.
cycle.			It may take a few minutes to stop the current test loop.

Chapter 4 Troubleshooting Common Problems 149