Quantum FastStor 2 Uživatelská příručka stáhnout pdf (Strana 49)

Troubleshooting Matrix 49

Autoloader Performance

The autoloader is not efficiently

backing up data

• Check the network bandwidth from the host system. If you

are backing up data over a network, consider comparing

to a local-only backup.

• Make sure the autoloader and tape drive are on their own

SCSI bus and not daisy-chained to another tape drive or

to the hard drive being backed up.

• Make sure the autoloader is connected to a LVD SCSI bus

and there are no SE devices on the same bus, because

this will cause the entire bus to negotiate down to SE

speed.

• Clean the tape drive. See Cleaning the Tape Drive for

instructions.

• Try a new cartridge. A marginal cartridge can cause

performance problems due to bad spots on the tape

requiring retries.

• Backing up compressed data will lower performance.

• Check the size of the files. Small file size can impact

performance.

• Confirm that the backup application is utilizing block sizes

of at least 32KB, preferably 64KB. Refer to the backup

application documentation for details.

Cleaning

Cannot load the cleaning

cartridge

• Make sure you are using an allowed cleaning cartridges

(see

Specifications).

• Contact your service representative.

Media Attention LED Issues

Contamination by loose debris

• Avoid contamination by ensuring that the autoloader is

installed in a clean, contamination-free environment.

Cartridges should be stored vertically in their plastic

cases. Continue cleaning the tape drive as needed.

Contamination by head staining

(Caused by adhesion of

chemicals that are present in

the tape media to the head

surface)

• One or two passes with a cleaning cartridge should

resolve the Media Attention LED caused by normal head

staining. If a cleaning cartridge is unsuccessful in

resolving a cleaning light after 3 or more attempts, the

cleaning cartridge may be contaminated and should NOT

be used in another drive.

Non-acclimated media • A cartridge should be acclimated for at least 24 hours

before being used, particularly if it has been stored at a

substantially different temperature or level of humidity

than the autoloader.

Problem Solution

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 67 68

Komentáře k této Příručce

Žádné komentáře

Quantum FastStor 2 Uživatelská příručka Strana 49

Komentáře k této Příručce

Související produkty a manuály pro Páskové automatické zavaděče a knihovny Quantum FastStor 2