In a message dated 6/21/2005 1:11:26 P.M. Central Daylight Time,  
[EMAIL PROTECTED] writes:

The  command you are looking for is DEVSERV i believe. 
Try:
DEVSERV  QDASD,<unit address>
Or:
DEVSERV  QDASD,?



DEVSERV (abbreviation DS) is indeed the command, but QDASD,<unit  address> 
will not reveal the cache size, CFW or DFW status.  PATHS  (abbrev. P) is the 
DS 
operand that reveals the CFW and DFW status.  To  see the cache size, do a DS 
QD,<device number>,SNSS to get a hex display  of the 44 bytes of Sense 
Subsystem Status info in groups of eight  bytes.  See any control unit 
reference 
book for the meaning of all 44  bytes.  The configured cache storage is in 
bytes 
10-13, available cache  14-17, pinned cache 18-21, offline cache 22-25, 
configured NVS 28-31, pinned NVS  32-35, etc.  I just did this command and got 
this 
display:
 
00004001000000C0 0000600000006000 etc. etc.  Bytes 10-13 (decimal  numbers 
here) contain X'60000000', which is 1.61 GB (where 1 GB = 10 to the 9th  bytes) 
or 1.5 GB (where 1 GB = 2 to the 30th power).
 
Now you see why IDCAMS LISTDATA is easier, or an interactive ISP  like 
TMON/MVS is a lot easier.
 
Bill Fairchild

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