Description | Initialization of media with large block size fails with the following error: | |
| ERROR: Medium 052007, volume 3: Init failed (12053: SCSI driver error. 'Buffer too large. See | |
| error.log for details.'). | |
| (Windows system specific) | |
Explanation | This problem occurs because some Windows SCSI or FS host bus adapter (HBA) drivers | |
| (particularly Adaptec and QLogic) do not support large block sizes by default. You can enlarge | |
| the scatter/gather list value to increase the transfer size beyond 64 KB. | |
Workaround | You need to change the registry setting that allows the lists to be expanded to up to 255 | |
| elements. Manually update the registry as follows: | |
| 1. | Run Registry Editor (regedit) to edit the system registry. |
| 2. | Under My Computer, expand HKEY_LOCAL_MACHINE, SYSTEM, CurrentControlSet, |
|
| Services, DriverName, Parameters, and Devicen. DriverName is the name of the miniport |
|
| driver, for example AIC78XX, and n in Devicen is the bus number assigned at initialization. |
| 3. | Select Edit > New > DWORD Value and enter MaximumSGList in the text box. |
| 4. | |
|
| equals to 255). Make sure that the Hexadecimal radio button is selected and click OK. |
| 5. | Exit the Registry Editor and restart the system. |
Description | Volume overflow when initializing empty medium volumes. |
Explanation | In some cases if a medium is bad, this might not be detected immediately by the drive. It is |
| possible that the tape drive skips bad areas of the medium until it reaches the end of the |
| medium. |
| If this happens, then a misleading SCSI error is reported. For example: |
| fse_Error: 11005: Medium overflow (physical EOM). |
| Volume Overflow ([0x00,0x02] |
| The current operation fails. The next time an attempt is made to use this medium, the drive |
| detects it is bad and marks it accordingly. |
Workaround | None |
252 Troubleshooting