I'm searching for System Management Tool on Linux which allows actual health status and historical trendanalysis as well as alerts. [S.M.A.R.T. ,Software-RAID, Network, File-System Fill-up Status, integrity checking, CPU, RAM,NW-speed, etc.]
I see that it can be done manually using mon and some spreadsheet tool. I also already saw big brother [not open source] and nagios [not yet tried].
As it is only needed to survey a single file server with a Software RAID i don't wanna go into overkill-solutions.
The best thing would be a webmin-extension or add-on.