text: **Stash file information for z/OS**
  To use**arsstash**with Content Manager OnDemand for z/OS, the Integrated Cryptographic 
  Service Facility (ICSF) must be available on the z/OS system to provide AES-128 encryption. 
  The encryption can be performed in either software or hardware. 
  
  In the examples, a started task name of CSF is used. If CSF is not running, when you try to 
  create a stash file, you get the following message, which does not identify the problem: 
  
  Verify OnDemand Password: 
  ARS1602E The stash file >/u/myuser/prodstash.stash< is invalid. 
  /usr/lpp/ars/V9R5M0/bin: > 
  
  To verify that CSF is up and running so that Content Manager OnDemand V9.5 can use it, 
  use the**MODIFY**command against**ARSSOCKD**. 
  
  On a system where ICSF is up and running, run the following command: 
  
  F ARSSOCKD,D,ICSF 
  ARS0438I 15.21.18 DISPLAY ICSF 
  CSFIQF RC=00, RSN=00000000, AES=3, FMID=HCR7780 