2009 Xserve has CPU activity lights across the front, with OS X 10.7 Server installed these lights function. With OS X 10.11 El Capitan they don't.
The process responsible is hwmond from /usr/sbin.
Taking that from 10.7 (as described in Xserve CPU Status LED's under Mountain Lion) and executing it in 10.11 gives me this.
server2:~ Admin$ /Volumes/SSD\ Storage/usr/sbin/hwmond
dyld: Library not loaded: /System/Library/PrivateFrameworks/CoreRAID.framework/Versions/A/CoreRAID
Referenced from: /Volumes/SSD Storage/usr/sbin/hwmond
Reason: no suitable image found. Did find:
/System/Library/PrivateFrameworks/CoreRAID.framework/Versions/A/CoreRAID: mach-o, but wrong architecture
Trace/BPT trap: 5
Can I make this work in OS X 10.11 El Capitan?
Xserve, OS X El Capitan (10.11.5), null
