We are having an issue after upgrading from 6.5 to 7.6 where our transaction log backups are now taking significantly longer because the SQL Backup service just sits idle for anywhere from 20 seconds to around 5 minutes before starting the next backup. This is when there are no other backups running.
Here you can see it sitting for about 20 seconds:
And then here this one just sat for around 5 minutes.
We're backing up around 80 databases, and previously the job would complete in about 15-20 minutes, and now it is taking close to an hour.
Here you can see it sitting for about 20 seconds:
| Quote: |
2/13/2014 2:40:02 PM: Backing up ALMIS48_23 (transaction log) to: 2/13/2014 2:40:02 PM: I:\MSSQL\LogShip\Stage\\LOG_SCSQLPVOS0800_ALMIS48_23_20140213_144002.sqb 2/13/2014 2:40:03 PM: BACKUP LOG [ALMIS48_23] TO VIRTUAL_DEVICE = 'SQLBACKUP_DB0A0DE2-B228-40A5-8147-1A031B8805A3', VIRTUAL_DEVICE = 'SQLBACKUP_DB0A0DE2-B228-40A5-8147-1A031B8805A301', VIRTUAL_DEVICE = 'SQLBACKUP_DB0A0DE2-B228-40A5-8147-1A031B8805A302', VIRTUAL_DEVICE = 'SQLBACKUP_DB0A0DE2-B228-40A5-8147-1A031B8805A303', VIRTUAL_DEVICE = 'SQLBACKUP_DB0A0DE2-B228-40A5-8147-1A031B8805A304', VIRTUAL_DEVICE = 'SQLBACKUP_DB0A0DE2-B228-40A5-8147-1A031B8805A305', VIRTUAL_DEVICE = 'SQLBACKUP_DB0A0DE2-B228-40A5-8147-1A031B8805A306', VIRTUAL_DEVICE = 'SQLBACKUP_DB0A0DE2-B228-40A5-8147-1A031B8805A307' WITH BUFFERCOUNT = 32, BLOCKSIZE = 65536, MAXTRANSFERSIZE = 1048576, NAME = N'Database (ALMIS48_23), 2/13/2014 2:40:02 PM', DESCRIPTION = N'Backup on 2/13/2014 2:40:02 PM Server: SCSQLPVOS0800 Database: ALMIS48_23', FORMAT 2/13/2014 2:40:03 PM: Backup data size : 8.125 MB 2/13/2014 2:40:03 PM: Compressed data size: 155.000 KB 2/13/2014 2:40:03 PM: Compression rate : 98.14% 2/13/2014 2:40:03 PM: Processed 2 pages for database 'ALMIS48_23', file 'ALMIS48_23_Log' on file 1. 2/13/2014 2:40:03 PM: BACKUP LOG successfully processed 2 pages in 0.171 seconds (0.051 MB/sec). -------------------------------------------------------------------------------- 2/13/2014 2:40:21 PM: Backing up msdb (transaction log) to: 2/13/2014 2:40:21 PM: I:\MSSQL\LogShip\Stage\\LOG_SCSQLPVOS0800_msdb_20140213_144021.sqb 2/13/2014 2:40:21 PM: BACKUP LOG [msdb] TO VIRTUAL_DEVICE = 'SQLBACKUP_395E6B1A-16C5-40C0-B905-E662B75D8619', VIRTUAL_DEVICE = 'SQLBACKUP_395E6B1A-16C5-40C0-B905-E662B75D861901', VIRTUAL_DEVICE = 'SQLBACKUP_395E6B1A-16C5-40C0-B905-E662B75D861902', VIRTUAL_DEVICE = 'SQLBACKUP_395E6B1A-16C5-40C0-B905-E662B75D861903', VIRTUAL_DEVICE = 'SQLBACKUP_395E6B1A-16C5-40C0-B905-E662B75D861904', VIRTUAL_DEVICE = 'SQLBACKUP_395E6B1A-16C5-40C0-B905-E662B75D861905', VIRTUAL_DEVICE = 'SQLBACKUP_395E6B1A-16C5-40C0-B905-E662B75D861906', VIRTUAL_DEVICE = 'SQLBACKUP_395E6B1A-16C5-40C0-B905-E662B75D861907' WITH BUFFERCOUNT = 32, BLOCKSIZE = 65536, MAXTRANSFERSIZE = 1048576, NAME = N'Database (msdb), 2/13/2014 2:40:21 PM', DESCRIPTION = N'Backup on 2/13/2014 2:40:21 PM Server: SCSQLPVOS0800 Database: msdb', FORMAT 2/13/2014 2:40:22 PM: Backup data size : 17.625 MB 2/13/2014 2:40:22 PM: Compressed data size: 2.990 MB 2/13/2014 2:40:22 PM: Compression rate : 83.03% 2/13/2014 2:40:22 PM: Processed 1279 pages for database 'msdb', file 'MSDBLog' on file 1. 2/13/2014 2:40:22 PM: BACKUP LOG successfully processed 1279 pages in 0.113 seconds (88.383 MB/sec). -------------------------------------------------------------------------------- 2/13/2014 2:40:40 PM: Backing up VLMI08000000 (transaction log) to: 2/13/2014 2:40:40 PM: I:\MSSQL\LogShip\Stage\\LOG_SCSQLPVOS0800_VLMI08000000_20140213_144040.sqb 2/13/2014 2:40:40 PM: BACKUP LOG [VLMI08000000] TO VIRTUAL_DEVICE = 'SQLBACKUP_6BDA1579-0E22-4343-9EE5-E35F9227CD25', VIRTUAL_DEVICE = 'SQLBACKUP_6BDA1579-0E22-4343-9EE5-E35F9227CD2501', VIRTUAL_DEVICE = 'SQLBACKUP_6BDA1579-0E22-4343-9EE5-E35F9227CD2502', VIRTUAL_DEVICE = 'SQLBACKUP_6BDA1579-0E22-4343-9EE5-E35F9227CD2503', VIRTUAL_DEVICE = 'SQLBACKUP_6BDA1579-0E22-4343-9EE5-E35F9227CD2504', VIRTUAL_DEVICE = 'SQLBACKUP_6BDA1579-0E22-4343-9EE5-E35F9227CD2505', VIRTUAL_DEVICE = 'SQLBACKUP_6BDA1579-0E22-4343-9EE5-E35F9227CD2506', VIRTUAL_DEVICE = 'SQLBACKUP_6BDA1579-0E22-4343-9EE5-E35F9227CD2507' WITH BUFFERCOUNT = 32, BLOCKSIZE = 65536, MAXTRANSFERSIZE = 1048576, NAME = N'Database (VLMI08000000), 2/13/2014 2:40:40 PM', DESCRIPTION = N'Backup on 2/13/2014 2:40:40 PM Server: SCSQLPVOS0800 Database: VLMI08000000', FORMAT 2/13/2014 2:40:42 PM: Backup data size : 8.938 MB 2/13/2014 2:40:42 PM: Compressed data size: 796.500 KB 2/13/2014 2:40:42 PM: Compression rate : 91.30% 2/13/2014 2:40:42 PM: Processed 310 pages for database 'VLMI08000000', file 'VLMI08000000_Log' on file 1. 2/13/2014 2:40:42 PM: BACKUP LOG successfully processed 310 pages in 0.147 seconds (16.425 MB/sec). -------------------------------------------------------------------------------- 2/13/2014 2:41:06 PM: Backing up VLMI08000000_objects (transaction log) to: 2/13/2014 2:41:06 PM: I:\MSSQL\LogShip\Stage\\LOG_SCSQLPVOS0800_VLMI08000000_objects_20140213_144106.sqb 2/13/2014 2:41:06 PM: BACKUP LOG [VLMI08000000_objects] TO VIRTUAL_DEVICE = 'SQLBACKUP_EA6092B6-F7B5-453B-891B-7682AFC87D4C', VIRTUAL_DEVICE = 'SQLBACKUP_EA6092B6-F7B5-453B-891B-7682AFC87D4C01', VIRTUAL_DEVICE = 'SQLBACKUP_EA6092B6-F7B5-453B-891B-7682AFC87D4C02', VIRTUAL_DEVICE = 'SQLBACKUP_EA6092B6-F7B5-453B-891B-7682AFC87D4C03', VIRTUAL_DEVICE = 'SQLBACKUP_EA6092B6-F7B5-453B-891B-7682AFC87D4C04', VIRTUAL_DEVICE = 'SQLBACKUP_EA6092B6-F7B5-453B-891B-7682AFC87D4C05', VIRTUAL_DEVICE = 'SQLBACKUP_EA6092B6-F7B5-453B-891B-7682AFC87D4C06', VIRTUAL_DEVICE = 'SQLBACKUP_EA6092B6-F7B5-453B-891B-7682AFC87D4C07' WITH BUFFERCOUNT = 32, BLOCKSIZE = 65536, MAXTRANSFERSIZE = 1048576, NAME = N'Database (VLMI08000000_objects), 2/13/2014 2:41:06 PM', DESCRIPTION = N'Backup on 2/13/2014 2:41:06 PM Server: SCSQLPVOS0800 Database: VLMI08000000_objects', FORMAT 2/13/2014 2:41:06 PM: Backup data size : 4.000 MB 2/13/2014 2:41:06 PM: Compressed data size: 18.500 KB 2/13/2014 2:41:06 PM: Compression rate : 99.55% 2/13/2014 2:41:06 PM: Processed 0 pages for database 'VLMI08000000_objects', file 'VLMI08000000_objects_Log' on file 1. 2/13/2014 2:41:06 PM: BACKUP LOG successfully processed 0 pages in 0.013 seconds (0.000 MB/sec). -------------------------------------------------------------------------------- 2/13/2014 2:41:26 PM: Backing up VLMI15000000 (transaction log) to: 2/13/2014 2:41:26 PM: I:\MSSQL\LogShip\Stage\\LOG_SCSQLPVOS0800_VLMI15000000_20140213_144126.sqb 2/13/2014 2:41:26 PM: BACKUP LOG [VLMI15000000] TO VIRTUAL_DEVICE = 'SQLBACKUP_5597AA3F-284D-4BE7-A456-51F5478C5ADC', VIRTUAL_DEVICE = 'SQLBACKUP_5597AA3F-284D-4BE7-A456-51F5478C5ADC01', VIRTUAL_DEVICE = 'SQLBACKUP_5597AA3F-284D-4BE7-A456-51F5478C5ADC02', VIRTUAL_DEVICE = 'SQLBACKUP_5597AA3F-284D-4BE7-A456-51F5478C5ADC03', VIRTUAL_DEVICE = 'SQLBACKUP_5597AA3F-284D-4BE7-A456-51F5478C5ADC04', VIRTUAL_DEVICE = 'SQLBACKUP_5597AA3F-284D-4BE7-A456-51F5478C5ADC05', VIRTUAL_DEVICE = 'SQLBACKUP_5597AA3F-284D-4BE7-A456-51F5478C5ADC06', VIRTUAL_DEVICE = 'SQLBACKUP_5597AA3F-284D-4BE7-A456-51F5478C5ADC07' WITH BUFFERCOUNT = 32, BLOCKSIZE = 65536, MAXTRANSFERSIZE = 1048576, NAME = N'Database (VLMI15000000), 2/13/2014 2:41:26 PM', DESCRIPTION = N'Backup on 2/13/2014 2:41:26 PM Server: SCSQLPVOS0800 Database: VLMI15000000', FORMAT 2/13/2014 2:41:26 PM: Backup data size : 4.375 MB 2/13/2014 2:41:26 PM: Compressed data size: 65.000 KB 2/13/2014 2:41:26 PM: Compression rate : 98.55% 2/13/2014 2:41:26 PM: Processed 18 pages for database 'VLMI15000000', file 'VLMI15000000_Log' on file 1. 2/13/2014 2:41:26 PM: BACKUP LOG successfully processed 18 pages in 0.021 seconds (6.463 MB/sec). -------------------------------------------------------------------------------- 2/13/2014 2:41:47 PM: Backing up VLMI15000000_objects (transaction log) to: 2/13/2014 2:41:47 PM: I:\MSSQL\LogShip\Stage\\LOG_SCSQLPVOS0800_VLMI15000000_objects_20140213_144147.sqb 2/13/2014 2:41:48 PM: BACKUP LOG [VLMI15000000_objects] TO VIRTUAL_DEVICE = 'SQLBACKUP_60E9C5DE-33A5-4414-99D8-3DDEC109CB39', VIRTUAL_DEVICE = 'SQLBACKUP_60E9C5DE-33A5-4414-99D8-3DDEC109CB3901', VIRTUAL_DEVICE = 'SQLBACKUP_60E9C5DE-33A5-4414-99D8-3DDEC109CB3902', VIRTUAL_DEVICE = 'SQLBACKUP_60E9C5DE-33A5-4414-99D8-3DDEC109CB3903', VIRTUAL_DEVICE = 'SQLBACKUP_60E9C5DE-33A5-4414-99D8-3DDEC109CB3904', VIRTUAL_DEVICE = 'SQLBACKUP_60E9C5DE-33A5-4414-99D8-3DDEC109CB3905', VIRTUAL_DEVICE = 'SQLBACKUP_60E9C5DE-33A5-4414-99D8-3DDEC109CB3906', VIRTUAL_DEVICE = 'SQLBACKUP_60E9C5DE-33A5-4414-99D8-3DDEC109CB3907' WITH BUFFERCOUNT = 32, BLOCKSIZE = 65536, MAXTRANSFERSIZE = 1048576, NAME = N'Database (VLMI15000000_objects), 2/13/2014 2:41:47 PM', DESCRIPTION = N'Backup on 2/13/2014 2:41:47 PM Server: SCSQLPVOS0800 Database: VLMI15000000_objects', FORMAT 2/13/2014 2:41:48 PM: Backup data size : 4.000 MB 2/13/2014 2:41:48 PM: Compressed data size: 20.000 KB 2/13/2014 2:41:48 PM: Compression rate : 99.51% 2/13/2014 2:41:48 PM: Processed 0 pages for database 'VLMI15000000_objects', file 'VLMI15000000_objects_Log' on file 1. 2/13/2014 2:41:48 PM: BACKUP LOG successfully processed 0 pages in 0.012 seconds (0.000 MB/sec). -------------------------------------------------------------------------------- |
And then here this one just sat for around 5 minutes.
| Quote: |
-------------------------------------------------------------------------------- 2/13/2014 2:43:08 PM: Backing up VOS06000037_objects (transaction log) to: 2/13/2014 2:43:08 PM: I:\MSSQL\LogShip\Stage\\LOG_SCSQLPVOS0800_VOS06000037_objects_20140213_144308.sqb 2/13/2014 2:43:08 PM: BACKUP LOG [VOS06000037_objects] TO VIRTUAL_DEVICE = 'SQLBACKUP_5FF6A99E-0A5C-4BC7-AE85-D55C1E686FC9', VIRTUAL_DEVICE = 'SQLBACKUP_5FF6A99E-0A5C-4BC7-AE85-D55C1E686FC901', VIRTUAL_DEVICE = 'SQLBACKUP_5FF6A99E-0A5C-4BC7-AE85-D55C1E686FC902', VIRTUAL_DEVICE = 'SQLBACKUP_5FF6A99E-0A5C-4BC7-AE85-D55C1E686FC903', VIRTUAL_DEVICE = 'SQLBACKUP_5FF6A99E-0A5C-4BC7-AE85-D55C1E686FC904', VIRTUAL_DEVICE = 'SQLBACKUP_5FF6A99E-0A5C-4BC7-AE85-D55C1E686FC905', VIRTUAL_DEVICE = 'SQLBACKUP_5FF6A99E-0A5C-4BC7-AE85-D55C1E686FC906', VIRTUAL_DEVICE = 'SQLBACKUP_5FF6A99E-0A5C-4BC7-AE85-D55C1E686FC907' WITH BUFFERCOUNT = 32, BLOCKSIZE = 65536, MAXTRANSFERSIZE = 1048576, NAME = N'Database (VOS06000037_objects), 2/13/2014 2:43:08 PM', DESCRIPTION = N'Backup on 2/13/2014 2:43:08 PM Server: SCSQLPVOS0800 Database: VOS06000037_objects', FORMAT 2/13/2014 2:43:08 PM: Backup data size : 4.125 MB 2/13/2014 2:43:08 PM: Compressed data size: 24.000 KB 2/13/2014 2:43:08 PM: Compression rate : 99.43% 2/13/2014 2:43:08 PM: Processed 2 pages for database 'VOS06000037_objects', file 'VOS06000037_objects_Log' on file 1. 2/13/2014 2:43:08 PM: BACKUP LOG successfully processed 2 pages in 0.022 seconds (0.488 MB/sec). -------------------------------------------------------------------------------- 2/13/2014 2:48:47 PM: Backing up VOS06000039_objects (transaction log) to: 2/13/2014 2:48:47 PM: I:\MSSQL\LogShip\Stage\\LOG_SCSQLPVOS0800_VOS06000039_objects_20140213_144847.sqb 2/13/2014 2:48:47 PM: BACKUP LOG [VOS06000039_objects] TO VIRTUAL_DEVICE = 'SQLBACKUP_F9C14C12-06AF-4E17-BE1A-5739B9649162', VIRTUAL_DEVICE = 'SQLBACKUP_F9C14C12-06AF-4E17-BE1A-5739B964916201', VIRTUAL_DEVICE = 'SQLBACKUP_F9C14C12-06AF-4E17-BE1A-5739B964916202', VIRTUAL_DEVICE = 'SQLBACKUP_F9C14C12-06AF-4E17-BE1A-5739B964916203', VIRTUAL_DEVICE = 'SQLBACKUP_F9C14C12-06AF-4E17-BE1A-5739B964916204', VIRTUAL_DEVICE = 'SQLBACKUP_F9C14C12-06AF-4E17-BE1A-5739B964916205', VIRTUAL_DEVICE = 'SQLBACKUP_F9C14C12-06AF-4E17-BE1A-5739B964916206', VIRTUAL_DEVICE = 'SQLBACKUP_F9C14C12-06AF-4E17-BE1A-5739B964916207' WITH BUFFERCOUNT = 32, BLOCKSIZE = 65536, MAXTRANSFERSIZE = 1048576, NAME = N'Database (VOS06000039_objects), 2/13/2014 2:48:47 PM', DESCRIPTION = N'Backup on 2/13/2014 2:48:47 PM Server: SCSQLPVOS0800 Database: VOS06000039_objects', FORMAT 2/13/2014 2:48:47 PM: Backup data size : 4.125 MB 2/13/2014 2:48:47 PM: Compressed data size: 20.500 KB 2/13/2014 2:48:47 PM: Compression rate : 99.51% 2/13/2014 2:48:47 PM: Processed 1 pages for database 'VOS06000039_objects', file 'VOS06000039_objects_Log' on file 1. 2/13/2014 2:48:47 PM: BACKUP LOG successfully processed 1 pages in 0.036 seconds (0.203 MB/sec). -------------------------------------------------------------------------------- |
We're backing up around 80 databases, and previously the job would complete in about 15-20 minutes, and now it is taking close to an hour.