DEVSERV QDASD

You can use the DEVSERV QDASD command to display the number of configured cylinders for a device or range of devices, including device model 3390 model A. The first character of the UNIT number represents the subchannel set number.

Figure 1 shows the output of the DS QD,F41,RDC,DCE command.

Figure 1. DS QD,F41,RDC,DCE Output

09.36.34 SYSTEM1           IEE459I 09.36.34 DEVSERV QDASD 625      
 UNIT VOLSER SCUTYPE DEVTYPE       CYL  SSID SCU-SERIAL DEV-SERIAL EFC
00F41 IN7996 2107921 2107900     87927  2606 0113-03261 0113-03261 *OK
  READ DEVICE CHARACTERISTIC                                          
2107E833900E5E8C FFF72032FFFE000F E000E5A205940222 1309067400000000   
0000000000000000 3E3E1F02DFEE0001 0677080F007F4A00 003C000000015777   
  DCE AT V00E8A578                                                    
4878807100000000 0000000002051820 D800FFFEFFFE3E3E 1FF70A00002A0000   
00FD7B9C9400F0FE 161F3C1E000A8C00 1500000000015777 0001577600000000   
0000000000000000
****      1 DEVICE(S) MET THE SELECTION CRITERIA                      
****      0 DEVICE(S) FAILED EXTENDED FUNCTION CHECKING

When you add the ATTR parameter, DEVSERV QDASD displays device attributes, including if the device is a solid state drive, for example:

UNIT VOLSER SCUTYPE DEVTYPE       CYL  SSID SCU-SERIAL DEV-SERIAL EFC    
 ATTRIBUTE/FEATURE        YES/NO    ATTRIBUTE/FEATURE        YES/NO
 0D300 TK9085 2107921 2107900    65520  2401 0175-02411 0175-02411 *OK    
  SOLID STATE DRIVE          Y      ENCRYPTION                  N