Attempts to made backup on the network drive are failed

MS SQL Server 2000 Enterprise Edition Service Pack 3
on MS Windows Advanced Server Service Pack 4
Attempts to made backup on the network drive are failed.
There are two databases with this feature. One has 1400Mb data and 100Mb
log. Another has 4410Mb data and 1000Mb log.
First database has about 80% successful attempts. Second - only 10%. However
there are a lot of databases about 300-500Mb that are backed up successfully
always and one that has 4100Mb data and 1000Mb log, that is backed up
successfully always.
Backups on the local drives are always successful.
Copying entire catalog \data (about 20Gb mdf and ldf files) on the same
network drive is always successful.
Symptoms:
After issuing this statement:
backup database LargeDB to
disk='\\server001\backup2\mssql\LargeDB_20031209.bak' with stats=1
we have result:
1 percent backed up.
2 percent backed up.
3 percent backed up.
................
97 percent backed up.
98 percent backed up.
99 percent backed up.
Processed 563608 pages for database 'LargeDB', file 'LargeDBData' on file 1.
100 percent backed up.
Processed 1 pages for database 'LargeDB', file 'LargeDBlog' on file 1.
Server: Msg 3013, Level 16, State 1, Line 1
BACKUP DATABASE is terminating abnormally.
SQL Server log contains two records:
BackupDiskFile::RequestDurableMedia: failure on backup device
'\\server001\backup2\mssql\LargeDB_20031209.bak'. Operating system error
64(error not found).
BACKUP failed to complete the command backup database LargeDB to
disk='\\server001\backup2\mssql\LargeDB_20031209.bak' with stats=1
Application event log contains two records:
18210 :
BackupDiskFile::RequestDurableMedia: failure on backup device
'\\server001\backup2\mssql\LargeDB_20031209.bak'. Operating system error
64(error not found).
3041 :
BACKUP failed to complete the command backup database LargeDB to
disk='\\server001\backup2\mssql\LargeDB_20031209.bak' with stats=1
System event log has no records
Events logs from file server has no records.
Attempt to restore from the "unsuccessful" backup file always is successful.
What should I do?|
| MS SQL Server 2000 Enterprise Edition Service Pack 3
| on MS Windows Advanced Server Service Pack 4
|
| Attempts to made backup on the network drive are failed.
| There are two databases with this feature. One has 1400Mb data and 100Mb
| log. Another has 4410Mb data and 1000Mb log.
| First database has about 80% successful attempts. Second - only 10%.
However
| there are a lot of databases about 300-500Mb that are backed up
successfully
| always and one that has 4100Mb data and 1000Mb log, that is backed up
| successfully always.
| Backups on the local drives are always successful.
| Copying entire catalog \data (about 20Gb mdf and ldf files) on the same
| network drive is always successful.
|
| Symptoms:
| After issuing this statement:
| backup database LargeDB to
| disk='\\server001\backup2\mssql\LargeDB_20031209.bak' with stats=1
| we have result:
| 1 percent backed up.
| 2 percent backed up.
| 3 percent backed up.
| ................
| 97 percent backed up.
| 98 percent backed up.
| 99 percent backed up.
| Processed 563608 pages for database 'LargeDB', file 'LargeDBData' on file
1.
| 100 percent backed up.
| Processed 1 pages for database 'LargeDB', file 'LargeDBlog' on file 1.
| Server: Msg 3013, Level 16, State 1, Line 1
| BACKUP DATABASE is terminating abnormally.
|
| SQL Server log contains two records:
| BackupDiskFile::RequestDurableMedia: failure on backup device
| '\\server001\backup2\mssql\LargeDB_20031209.bak'. Operating system error
| 64(error not found).
| BACKUP failed to complete the command backup database LargeDB to
| disk='\\server001\backup2\mssql\LargeDB_20031209.bak' with stats=1
|
| Application event log contains two records:
| 18210 :
| BackupDiskFile::RequestDurableMedia: failure on backup device
| '\\server001\backup2\mssql\LargeDB_20031209.bak'. Operating system error
| 64(error not found).
| 3041 :
| BACKUP failed to complete the command backup database LargeDB to
| disk='\\server001\backup2\mssql\LargeDB_20031209.bak' with stats=1
| System event log has no records
|
| Events logs from file server has no records.
|
| Attempt to restore from the "unsuccessful" backup file always is
successful.
|
| What should I do?
--
Go to the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanworkstation\param
eters\SessTimeout
Increase this value to 600 (10 minutes) and see how you go.
Hope this helps,
--
Eric Cárdenas
SQL Server support