The information in this article applies to:
SUMMARY
This article explains how you can make Windows NT Backup run faster when
you back up data from universal naming convention (UNC) shares. You will
notice the biggest performance gains when backing up many small files. In
some tests, backup jobs that previously took three hours to complete
finished in one hour.
MORE INFORMATION
To make Windows NT Backup run faster:
Why This Change Makes Windows NT Backup Run FasterWhenever Windows NT Backup encounters a file that could be a POSIX file, it requests that Windows NT open the file in a POSIX-compatible way (the path and filename match the filename case exactly).Because the workstation service has the wrong case for the device path registry settings (the first character is lowercase), Windows NT refuses to open the file when Windows NT Backup requests POSIX semantics. As a result, Windows NT returns ERROR_FILE_NOT_FOUND. Windows NT Backup then tries to open the file without specifying POSIX semantics, which works correctly. Performance suffers because Windows NT Backup has to attempt to open a file twice. STATUSThis design was changed in Windows NT version 3.51. The string for System\CurrentControlSet\Services\LanmanWorkstation\networkprovider is now \Device\LanmanRedirector by default. Additional query words: 3.10 ntbackup prodnt
Keywords : |
Last Reviewed: February 26, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use. |