SPDR.md

@@ -20,6 +20,8 @@ The systems at the ITF in Oakdale were the original "SPDR" (pronounced spider) s
 
 Capabilities include 432 cpu threads and almost 1.8 PB data storage, all uniformly available via any login. Following tradition, the servers are named after planets, primarily fictional planets from Star Trek.  View [DCIM](https://dcim.its.uiowa.edu/cabnavigator.php?cabinetid=37) information (physical location, configuration, etc), if authorized. [See photos](Photos).
 
+If you have large processing jobs to run, please use the C-H machines (Cestus, Draylax, Enara, Farias, Gothos, Harlak).  The A-B machines (Axanar, Binus) are primarily for routine interactive work, and Saturn hosts the core web services.
+
 | Server | Status | Threads | Speed | User Space | Data Space |
 |--------|--------|---------|-------|------------|------------|
 | Axanar | available | 48 | 4GHz | 20TB | 184TB |