NEO S-Series User Guide
10400666-001
© 2014 Overland Storage, Inc.
Page 10
Troubleshooting table
3.2
Problem
Solution
Poor throughput performance
•
Try a new tape. A marginal tape 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 with:
OCP, see
Chapter Cleaning tape drives, Page
Error! Bookmark not
defined..
RMU, see
Chapter Cleaning tape drive(s), Page
Error! Bookmark not
defined..
Cleaning
Cannot load the cleaning
cartridge
•
Make sure you are using an Ultrium universal cleaning cartridge.
See
Chapter Tape cartridge type, Page
Error! Bookmark not defined..
•
Contact your service representative.
Device Not Detected on SCSI Bus
Connected to a high voltage
differential SCSI bus/host
adapter
•
Attach device to a LVDS SCSI host adapter/bus.
•
SCSI cable length exceeded, use shorter cable, or removes other devices
from the bus.
•
Check for conflicting SCSI IDs.
•
Check that the HBA supports LUN scanning and this feature is enabled.
•
Device not properly terminated. See
Chapter Termination, Page 8
.
•
Power up device before powering up the host computer.
•
Check that the device has been powered up and is not in an error state.
•
Check the SCSI connector for bent pins.
