Now days, as it’s very common and normal trends, The DB size as 100~150…. n GBs are being considered the normal, and even many databases are crossing the terabyte range. In general practice commonly a DBA or sometime Developer starts backups in one process that take a long time and Database is continuing to grow, this back time will increase accordingly, to reduce the backup time, it’s always suggested take backup in Disk instead of tape in off hours. It’s my personal opinion always take backup to San Disk and then archive it to Tape. Disk capacity is matter because it’s directly proportional to costing/expense and to reduce backup size we can use compression. As we know taking a Full backup is very intensive I/O process as every data page in the database must be read and then written to another file. It’s my personal observation, having multiple physical disks, we can achieve higher I/O rates and complete the backup process more quickly with in addition to writing to multiple files, it is also helpful to write to different physical disks to alleviate the I/O bottleneck.
Here are steps, How to take Backup on multiple disks / multiple files using SSMS.
Step 1) Right Click on Database à Task à Back Up
It will shows screen as
Step 2) Click on Add from Destination section and set there multiple physical disk with multiple files by clicking on ADD button again and again.
And finally suppose we have set 2 disk with 2 files it will show like as below
Step 3) Click on OK, Backup will start with 2 physical disks.
The sample script for this process will be as below,
BACKUP DATABASE [VirendraTest] TO DISK = N’C:\VirendraTestOnCdrive.bak’,
DISK = N’E:\VirendraTestOnEdrive.bak’ WITH NOFORMAT, NOINIT,
NAME = N’VirendraTest-Full Database Backup’, SKIP, NOREWIND, NOUNLOAD, STATS = 1
Please suggest, your finding.