Nagios Support Forum

Thanks @rkennedy and @eloyd,

I get it. Another question, if I have a huge disk, could I keep all the index every day, and don't need delete them?

In other words, in the Backup & Maintenance page, I set Delete indexes older than to 0 day,

like this

Can it affect the memory performance?

Yes, you can keep them all on the disk.

Nope, this will just close the indexes, but still leave them available for you to open at any time. It will not affect your memory usage unless you open them, to search through.