I am using Red Hat Enterprise linux 5 and am trying to install Zimbra collaboration suite and got error message :
Checking for suggested prerequisites...
FOUND: perl-5.8.8
MISSING: sysstat does not appear to be installed.


The suggested version of one or more packages is not installed.
This could cause problems with the operation of Zimbra.

I have tried to google for sysstat rpm but could not find any for RHEL 5. I do not want to continue installation without this file. Any suggestions regarding this problem?