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Old 02-04-2010, 01:25 AM  
Varius
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Join Date: Jun 2004
Location: New York, NY
Posts: 6,890
Quote:
Originally Posted by clickhappy View Post
I have my own server and every night at 3:00am EST it runs a backup, and for about 15 minutes my sites are either down or extremely slow.
is this normal?
Depends how you are doing the backup... tar generally isn't well supported on most Linux kernels and will cause server load/slowdowns especially if you are tarring very large amounts of data, or directory structures with many subfolders and files.

Kernel tweaks or even an upgrade could help, check if you are swapping a lot during the process, changing to a hard drive with more RPM could also help...more RAM/CPU may have a minimal positive effect...
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