Error: "BACKUP failed to complete" on x64 bit platforms (4257897)

The SQL LiteSpeed Log may either show no errors,be truncatedprior to completing, and/or no LiteSpeed log may even be createdwhen the LiteSpeed logging parameter is added to the script or GUI.

The LiteSpeed error log may include:
LiteSpeed backup process terminated abnormally.
or
SQL Server error log may show the following:
BackupMedium::ReportIoError:write failure on backup device VDI_83E47416-E978-4EA1-8F94-EF4492865171_1. Operating system error 995(The I/O operation has been aborted because of either a thread exit or an application request.).

SQL Server error log may show a message similar to:
2008-10-19 12:32:16.96 Backup BACKUP failed to complete the command BACKUP DATABASE northwind. Check the backup application log for detailed messages.

Application Event Viewer may show a message similar to:
Faulting application SQLLitespeedx64.exe, version 5.0.0.3, faulting module SQLLitespeedx64.exe, version 5.0.0.3, fault address 0x00000000000d0d45
Faulting application SQLLitespeedx64.exe, version 1.0.3.0, faulting module SQLLitespeedx64.exe, version 1.0.3.0, fault address 0x00000000000d0615.Faulting application SQLLitespeedx64.exe, version 5.0.0.3, faulting module SQLLitespeedx64.exe, version 5.0.0.3, fault address 0x00000000000d0482

Software Defect

WORKAROUND:
Replace the 64-bitSQLLitespeed executable with the 32-bit version.

1. Take the SQLLitespeed32.exe from a server running the 32-bit application or request from Quest Support. This is located under the following path:
..\Program Files\Quest Software\LiteSpeed SQL Server\Engine

2. Copy the file into the 64-bit server under the same path.

3. Rename the original SQLLitespeed.exe (e.g. SQLLitespeed.exe.old)

4. Rename the newly copied SQLLitespeed32.exe to SQLLitespeed.exe

STATUS:
This issue is resolved in the LiteSpeed for SQL Server 5.2 Service Pack 1.

The LiteSpeed for SQL Server Service Pack 1 is available on SupportLink.
Download the LiteSpeed for SQL Server 5.2 Service Pack 1 for KnowledgeBase Solution 61094 (LiteSpeed 5.2.0_SP1.zip) from SupportLink at the following location:

https://support.quest.com/SUPPORT/index?page=downloadsentitlement&file=3005566

NOTE: To apply this service pack, you must have LiteSpeed for SQL Server 5.2.0.1240 installed. This service pack includes .MSP files for Windows 32-bit, Windows 64-bit and 64-Bit Itanium so please select according to your environment.

What is the difference between the 32 and 64 bit executables?

The primary reason for having a 64-bit version of an application is to take advantage of higher memory limits (beyond the default 32-bit limitation of 2GB) or to interface more seamlessly with other products or libraries within a system. The LiteSpeed product should not exhibit any functional behavior differences between the 32-bit version and 64-bit version. The source code baseline is the same for both compilations of the product. In addition, the 32-bit version will run on 64-bit platforms.