Windows NT Backup may have a problem restoring files from a Sytos Plus tape if the file is in a backup session that spans two Sytos Plus tapes and the file itself is entirely on the second tape. If this occurs, you can restore the file by rerunning Backup after setting the following Windows NT Registry key to 0:
HKEY_CURRENT_USER\Software\Microsoft\Ntbackup
\Backup Engine\Use fast file restoreAfter restoring the file, reset the keyto 1.
When restoring or cataloging a Sytos Plus tape under Windows NT, you might get the error "An error occurred during translation of data to or from the tape in the drive." This is because the backup error correction code (ECC) flag value in the Registry has been incorrectly set by the data on the tape. The value in the Registry is an override. To correct this problem, edit the following Registry key:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Ntbackup\Translators
\Sytos Plus ECC flagSytos Plus ECC Flag REG_DWORD 0, 1, or 2
Valid values are as follows:
Value | Description |
0 (Off) | NTBACKUP assumes that there is no software ECC on the tape. |
1 (On) | NTBACKUP assumes that there is software ECC on the tape. |
2 (Auto) | NTBACKUP determines whether a Sytos tape was written with software ECC by checking the data on the tape. |
Values should be set accordingly for the following types of tape:
Tape | Value |
4mm DAT | 0 |
8mm DAT | 0 |
1/4 in. 525 | 0 |
1/4 in. 150 | 1 |
Default: 2
Note If you have previously run the version of Windows NT Backup included with Windows NT 3.1, delete the Windows NT Backup entries in the Registry prior to running the upgrade version of Windows NT Backup. Otherwise, the ECC flag will not appear.