Top 4 Reasons for Slow Backups
Do your backup jobs seem to run incredibly slow? Afraid your server will still be backing up accounts well outside your scheduled backup window and continue running during normal business hours? Well, you are not alone as this is one concern almost every hosting provider runs into from time to time. Knowing how to quickly identify and resolve these issues are not always easy. However, we have found that almost every major cause for slow backups falls into at least one of the following four categories:
1. Poor IO
Users sometimes are not aware of disk IO limitation and will try to backup 20 plus servers into one single huge SATA disk. This is usually a single disk, in either local or remote destinations. We are using tools such as
2. Huge Accounts
(with 100K+ INODES)
While huge account size shouldn’t really affect performance on the second backup and above (as it’s incremental), a good amount of inodes count (usually 100k and above) could dramatically reduce the job performance. This usually happens with accounts holding lot’s of emails, causing
3. Crazy Directory Backups
(trying to backup “ / ” in 1 backup job)
Besides ‘regular’ accounts backups, JetBackup has the ability to
4. Network Latency
Creating backup jobs over WAN inside one data center or across multiple data centers could dramatically reduce the backup job performance as we are completely dependent on our WAN performance. This sometimes gets even worse when a few local servers are all backing up to the same remote destination at the same time causing both network bottleneck & IO bottleneck (on the remote destination).
With JetBackup, detecting poor performance for a backup job is quite easy. Simply log into the JetBackup panel inside your WHM and go to the backup jobs section. From there you will be able to see your backup jobs which will all have a star rating from 1 to 5. When you hover over the performance rating we give you a list of recommendations on how to increase the performance of your backup job.
Have you come up with any other tips or tricks to speed up your existing backups? Please feel free to share it with the rest of the JetApps community on our forum: https://forum.jetapps.com .
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