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SQL Server webinar series #18. Don’t Lose Your Data: backup, restore and verification May 22, 2012 4-5PM (BST: GMT+1). Goals. Identify common backup problems Learn how to verify backups Use Red Gate SQL Backup Pro 7 to automate this process. Agenda. Common backup problems DBCC
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SQL Server webinar series #18 Don’t Lose Your Data: backup, restore and verificationMay 22, 2012 4-5PM (BST: GMT+1)
Goals Identify common backup problems Learn how to verify backups Use Red Gate SQL Backup Pro 7 to automate this process
Agenda Common backup problems DBCC CHECKSUM VERIFYONLY RESTORE SQL Backup Pro
Grant Fritchey Product Evangelist for Red Gate Software Email: grant.fritchey@red-gate.com Twitter: @gfritchey Blog: http://www.simple-talk.com/community/blogs/scary/
Common backup problems Inappropriate backup types Insufficient disk space Differential only Broken backup chain Corrupted backup file Improperly configured backups
DBCC Backups are a page level copy of the database Check structure offline Still need to check physical structure
CHECKSUM • Mathematical construct based on the page • PAGE_VERIFY • Not None • Validates page read & write • Not what is read or written • Stored with backup • Additional overhead on the system
VERIFYONLY Validates Backup set Some header fields Checksum (if used in backup) Sufficient disk space Doesn’t check entire header
RESTORE The only complete verification of a backup A backup is just a file until it gets restored Also verifies that you know how to restore
SQL Backup Pro • Full support for properly configured backup • Automated restore testing • Reporting and alerting built-in
Backup Testing • “You’re only as good as your last restore” - Kimberly Tripp • DBCC • Against Production • Against a Backup • CHECKSUM • Added overhead • VERIFYONLY • Header only without checksum • RESTORE • Like nuking from orbit, the only way to be sure
Goals • Identify common backup problems • Learn how to verify backups • Use Red Gate SQL Backup Pro to automate this process
Webinar registrants offer SQL Backup Pro 7 Exclusive discount offer for all webinar registrants Email: dba.info@red-gate.com Call: + 44 (0) 1223 437 921 Quote code “May webinar” 14-day free trial www.red-gate.com
Grant Fritchey • Product Evangelist for Red Gate Software • Email: grant.fritchey@red-gate.com • Twitter: @gfritchey • Blog: http://www.simple-talk.com/community/blogs/scary/
How would you… ? Questions? What happens when… ? Why does… ? When do I… ? This webinar is being recorded and the video will be available on www.sqlservercentral.com by Monday.