if server uptime is something relevant, reset is never a solution, but a defeat

better is
killing e restarting
Code:
[zimbra@zimbra ~/libexec ]$ cat ../zmstat/pid/zmstat-df.pid
17860
[zimbra@zimbra ~/libexec ]$ ps ax|grep 17860
17860 ? S 0:05 /usr/bin/perl -w /opt/zimbra/libexec/zmstat-df
26422 pts/0 R+ 0:00 grep 17860
[zimbra@zimbra ~/libexec ]$ kill -9 17860
[zimbra@zimbra ~/libexec ]$ ps ax|grep 17860
26869 pts/0 S+ 0:00 grep 17860
[zimbra@zimbra ~/libexec ]$ /usr/bin/perl -w /opt/zimbra/libexec/zmstat-df &