Hitachi ShadowImage for IBM z/OS User"s Guide (T5213-96002, June 2007)

Performing ShadowImage for z/OS Pair Operations Using PPRC 7-5
Hitachi ShadowImage™ for IBM
®
z/OS
®
User’s Guide
PSF and DEVSERV Commands
The perform storage system function (PSF) commands key the USP V storage
system to accept commands and requests from the user. Table 7-2 describes
the operability of the PSF commands on SIz volumes.
Table 7-2 PSF Command Operability for ShadowImage for z/OS Volumes
Item Operability for ShadowImage for z/OS
Device pair status. See Table 7-3.
Percent completion of the
copy operation.
Not available for ShadowImage for z/OS, because the SIz differential bitmap format
is different than the TCz differential bitmap format.
S-VOL with 2 or more T-
VOLs.
Displays information for the pair having the T-VOL with the lowest LDEV ID.
Path status. Active.
Path number. If the volume does not also belong to a TCz pair, 1 is displayed with TCz info.
Table 7-3 describes the PSF Read Subsystem Data and DEVSERV Sense
Subsystem Status results for SIz volumes.
Table 7-3 PSF and DEVSERV Results for ShadowImage for z/OS Volumes
PSF Read Subsystem Data DEVSERV Sense Subsystem Status
Pair Status S-VOL T-VOL S-VOL T-VOL
Pending PPRI-PNDG PSEC-PNDG PPRI-PNDG PSEC-PNDG
Duplex PPRIMARY PSECONDRY PPRIMARY PSECONDRY
SP-Pend PPRI-PNDG PSEC-PNDG PPRI-PNDG PSEC-PNDG
V-Split PPRI-SUSP PSEC-SUSP PPRI-SUSP SIMPLEX
Split PPRI-SUSP PSEC-SUSP PPRI-SUSP SIMPLEX
Suspend PPRI-SUSP PSEC-SUSP PPRI-SUSP PSEC-SUSP
Resync PPRI-PNDG PSEC-PNDG PPRI-PNDG PSEC-PNDG
Note: PPRIMARY and PSECONDRY indicate that the volume is in the duplex
state.
Figure 7-1 shows an example of the DEVSERV command.
97244 13:04:37.39 DS P,DE80,1
97244 13:04:38.57 IEE459I 13.04.37 DEVSERV PATHS 692
692 UNIT DTYPE M CNT VOLSER CHPID=PATH STATUS
692 RTYPE SSID CFW TC DFW PIN DC-STATE CCA DCA
692 DE80,33903 ,0,000,DKDE80,54=+ 1C=+ D4=+ 9C=+
692 0080 Y YY. YY. N PPRIMARY 00 00
Figure 7-1 Example of DEVSERV Command