Fujitsu P3AM-5382-03ENZ0 Installing, Starting Up And Maintaining page 71

Chapter 4 Troubleshooting
4.2 Troubleshooting Table
Bad performance
Media attention
LED issues
FUJITSU Storage ETERNUS LT20 S2 LTO Library Installing, Starting Up and Maintaining
Problem
Contamination by loose debris
Non-acclimated media
Cartridge is incompatible
Expired cleaning cartridge
Bad/defective/contaminated
media
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Solution
•
Try a new cartridge. A marginal cartridge can cause
performance problems due to bad spots on the tape
requiring retries.
•
Backing up data that compresses poorly or is already
compressed 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.
•
Check the network bandwidth from the host
computer. If you are backing up data over a network,
consider comparing to a local-only backup.
•
Make sure the backup server has enough memory to
handle the bandwidth of the backup or restore.
•
Clean the tape drive. See "3.4.8.6 Cleaning Tape
Drive" (page 67) for instructions.
Avoid contamination by ensuring that the library is
installed in a clean, contamination-free environment.
Cartridges should be stored vertically in their plastic
cases. Continue cleaning the tape drive as needed.
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 library.
Use only cartridges that are compatible with the drive
type.
•
Make sure you are using an Ultrium universal
cleaning cartridge (see "3.4.8.6 Cleaning Tape Drive"
(page 67)).
A cleaning cartridge is good for Ultrium universal
libraries: 50 cleans.
If the Media Attention LED is cleared and - although the
drive has been cleaned - immediately re-displays each
time a particular cartridge is reloaded that cartridge
should be suspected as being defective.
•
Export the cartridge and load a known good cartridge.
In some cases, a cartridge can be worn out, have a
defective Cartridge Memory, or have been formatted
as a Firmware Upgrade Cartridge.
•
Any cartridge that is suspected of being defective or
contaminated should NOT be reused in any drive.
P3AM-5382-03ENZ0