Post Last Edit by adamskulz23 at 25-5-2010 07:04
bukan naikkan rpm hdd..
ko penah try oc proc x?
4. Read Speed too High – As the speed of drives has got faster and faster drives have become less tolerant to even the smallest of scratches in many cases, if possible it might be worth lowering the read speed of the drive when encountering any cyclic redundancy errors .
http://www.computer-adviser.com/cyclic-redundancy-error.html
Details:
The cyclic redundancy check (CRC) error is generic innature and can be caused by numerous factors. Typically this means that atape read/write error has occurred. This is usually caused by dirty read/writeheads in the tape drive. Clean the tape drive and try the job again. If theproblem persists, consider trying a different tape. Finally, the problem couldbe with cabling, termination or other hardware issue."
The following listcontains the most common reasons for this error and potential ways to resolvethe problem:
1. Contaminated read/write heads of the tapedevice:
Check with the hardwaremanufacturer for proper cleaning techniques.
2. Bad media as there may be hard read/writeerrors :
Replace the media. Try a newtape that is certified by the hardware manufacturer.
For more information about"soft" and "hard" write errors ,Please click on thelink http://support.veritas.com/docs/229641.
3. Tape driver:
Load the appropriate Backup Exectape driver. The latest Backup Exec tape drivers can be downloaded fromthe Symantec Technical Support Web site at http://www.symantec.com/business/support/downloads.jsp?pid=15047 .
4. SCSI controller wide negotiation:
If the device is a wide (68 pin)SCSI device, then wide negotiation may and should be used. If the device is anarrow (50 pin) SCSI device, disable wide negotiation. Use the manufacturer'sSCSI setup program to disable wide negotiation on the SCSI controllercard.
5. SCSI controller transfer rate is toofast:
Use the manufacturer's SCSIsetup program to lower the SCSI transfer rate. Check with the controller andbackup device manufacturer for the proper configuration for SCSI transferrate.
6. SCSI controller synchronous negotiationenabled:
Use the manufacturer's SCSIsetup program to disable synchronous negotiation on the SCSI controller card.Check with the controller and backup device manufacturer for the properconfiguration for SCSI synchronous negotiation.
7. Incorrect termination or badcables:
Verify that the SCSI cable isgood and is configured to provide proper SCSI termination. Do not mix passiveand active termination.
8. Confirm that the tape drive is functioningproperly:
Check with the tape drivemanufacturer for diagnostic software to test the condition of the tape drivehardware.
9. General SCSI problems:
Isolate the tape drive on itsown controller card.
http://seer.entsupport.symantec.com/docs/192216.htm | 
Post time 24-5-2010 12:21 PM
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