configuring alerts for 10g database

[kavitharajamani]

I want to configure an alert when my system tablespace is 90% full. How?

[excowboy]

kkrm,

would you be so kind and respond to answers on threads you've opened before starting new threads ? For example:
http://communities.vmware.com/message/1932447#1932447
I would really appreciate it.

As far as i know you can only use absolute values for an alert condition and not a relative or a percentage value. So if the unit for the metric Freespace is Byte, you can only setup a Byte size as a limit.

Mirko