IBM DS8000 - Manual (Page 307)

Chapter 13. zSeries software enhancements 285
Figure 13-1 Display output from DEVSERV QDASD command
Figure 13-2 displays output from the DEVSERV PATHS command, which shows the device
type as a 2107.
Figure 13-2 Display output from DEVSERV PATHS command
The following DFSMS components and products are updated to recognize real control unit
and real device identifiers:
Device support - system initialization
DFSMSdss
System Data Mover (SDM)
Interactive Storage Management Facility (ISMF)
Device Support Facility (ICKDSF)
DFSORT
EREP
13.2.7 New performance statistics
There are two new sets of performance statistics that will be reported by the DS8000. Since a
logical volume is no longer allocated on a single RAID rank with a single RAID type or single
device adapter pair, the performance data will be provided with a new set of rank
performance statistics and extent pool statistics. The RAID RANK reports will no longer be
reported by RMF and IDCAMS LISTDATA batch reports. RMF and IDCAMS LISTDATA is
enhanced to report the new logical volume statistics that will be provided on the DS8000.
These reports will consist of back-end counters that capture the activity between the cache
and the ranks in the DS8000 for each individual logical volume. The new rank and extent pool
statistics will be disk-system-wide instead of volume-wide only.
DS QD,9882,RDC,DCE
IEE459I 11.36.47 DEVSERV QDASD 053
UNIT VOLSER SCUTYPE DEVTYPE CYL SSID SCU-SERIAL DEV-SERIAL EF-CHK
9882 IN9882 2107921 2107 000 65520 1011 0113-00511 0113-00511 **OK**
READ DEVICE CHARACTERISTIC
2107 E833900A5E80 FFF72024FFF0000F E000E5A205940222 1309067400000000
0000000000000000 2424 1F 02DFEE0001 0677080F007F4A00 00 3C 000000000000
DCE AT V020D8A30
3878807100C457C0 00000000024B60D0 D800FFF0FFEF2424 1F F70800004A0000
00FC24DC9400F0FE 02 1F3C 1E00038000 0000000000000000
**** 1 DEVICE(S) MET THE SELECTION CRITERIA
**** 0 DEVICE(S) FAILED EXTENDED FUNCTION CHECKING
DS P,9882
IEE459I 11.38.36 DEVSERV PATHS 055
UNIT DTYPE M CNT VOLSER CHPID=PATH STATUS
RTYPE SSID CFW TC DFW PIN DC-STATE CCA DDC ALT CU-TYPE
9882,33903 ,O,000,IN9882,29=+ 2B=+
2107 1011 Y YS. YY. N SIMPLEX 02 02 2107
************************ SYMBOL DEFINITIONS ************************
O = ONLINE + = PATH AVAILABLE