I had received two emails from one of my servers over the weekend. The first tells me that a LightSpeed backup job failed:
JOB RUN: 'LiteSpeed Backup Template Vertex Fast Compression User Databases (version 5)' was run on 1/18/2014 at 12:15:00 AM
DURATION: 0 hours, 0 minutes, 35 seconds
STATUS: Failed
MESSAGES: The job failed. The Job was invoked by Schedule 76 (Scheduled Backup). The last step to run was step 1 (Step1).
The second is from a job I have that periodically emails me when unusual SQL Server log entries appear:
LogDate | ProcessInfo | Text |
2014-01-18 00:15:28.830 | spid57 | FastCompression Alert: 62405 : FastCompression backup sequence has failed LSN verification |
When I look at the Job History detail for the failed step of the job that failed, I see this:
| Date | 1/18/2014 12:15:00 AM |
| Log | Job History (LiteSpeed Backup Template Vertex Fast Compression User Databases (version 5)) |
| Step ID | 1 |
| Server | VTX-DEVSQL-01\DEV776 |
| Job Name | LiteSpeed Backup Template Vertex Fast Compression User Databases (version 5) |
| Step Name | Step1 |
| Duration | 00:00:35 |
Sql Severity 16
Sql Message ID 62405
Operator Emailed
Operator Net sent
Operator Paged
Retries Attempted 0
Message
Executed as user: VERTEX\ssa_service. ...ftware, Inc. Selecting differential backup: No specified criteria require a full at this time. Executing SqlLiteSpeed.exe: Write new differential backup B:\VTX-DEVSQL-01$DEV776\VertexBilling_Model\\VertexBilling_Model.litespeed.f10.d5.bkp > Backing Up: 0%...100% Complete > Processed 40 pages for database 'VertexBilling_Model', file 'VertexBilling_Model' on file 1. > Processed 1 pages for database 'VertexBilling_Model', file 'VertexBilling_Model_l LiteSpeed for SQL Server 7.5.0.539 Copyright 2013 Quest Software, Inc. SmartCleanup last deleted backups on '2014-01-10 00:16:00'. Continuing with backupsetid 10820 Following files have been deleted: B:\VTX-DEVSQL-01$DEV776\VertexBilling_Model\VertexBilling_Model.litespeed.f9.d6.bkp [SQLSTATE 01000] (Message 1) LiteSpeed for SQL Server 7.5.0.539 Copyright 2013 Quest Software, Inc. Selecting differential backup: No specified criteria require a full at this time. Executing SqlLiteSpeed.exe: Write ... The step failed.
When I look at the SQL Server log for the entry regarding the backup of the VertexBilling_Model database, I see this (which doesn't seem to indicate a problem):
| Date | 1/18/2014 12:15:03 AM |
| Log | SQL Server (Current - 1/20/2014 2:00:00 PM) |
| Source | Backup |
Message
Database differential changes were backed up. Database: VertexBilling_Model, creation date(time): 2013/01/02(15:04:44), pages dumped: 416, first LSN: 3072:697:1, last LSN: 3072:699:1, full backup LSN: 3072:644:37, number of dump devices: 2, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'VDI_0FF20617-AC32-40A6-8E2C-D9CE04BFF47F_0', 'VDI_0FF20617-AC32-40A6-8E2C-D9CE04BFF47F_1'}). This is an informational message. No user action is required.
The backup on the night of the 19th completed without error. I am running LiteSpeed 7.5.0.539.
How can I determine the cause of the failed LSN verification on the night of the 18th?
Thanks,
Mark