Software Manual

80 ShadowImage for the XP128/XP1024/XP10000/XP12000
NOTE: If an SI390 pair is suspended because of an internal disk array error condition, the QUIESCE
option is applied. In this case, release the QUIESCE condition by deleting the pair.
SI390 and TC390 are processed independently. The CSUSPEND/QUIESCE command is effective for
either the SI390 or TC390 pair specified in the command.
Resynchronizing Pairs: MODE(RESYNC) Parameter
The MODE(RESYNC) option of the CESTPAIR and PPRCOPY ESTPAIR commands is equivalent to the SI390
normal resync operation (changes pair status to resync). The following are examples of the CESTPAIR
command with the MODE(RESYNC) parameter and the PPRCOPY ESTPAIR command with the
MODE(RESYNC) parameter. These commands must be issued to the S-VOL and the pair status must be split
or suspend when MODE(RESYNC) is specified.
Example: CESTPAIR with MODE(RESYNC) Parameter
Example: PPRCOPY ESTPAIR with MODE(RESYNC) Parameter
Deleting Pairs: CDELPAIR and PPRCOPY DELPAIR
The CDELPAIR and PPRCOPY DELPAIR commands are equivalent to the SI390 delete pair operation
(changes pair status to simplex). The following are examples of the CDELPAIR and PPRCOPY DELPAIR
commands. These commands must be issued to the S-VOL.
A DELPAIR command performed when pair status is split enables the T-VOL to be accessed by the host. A
DELPAIR command performed when pair status is other than split allows non-reserved T-VOLs to be
accessed by the host. Reserved simplex volumes cannot be accessed.
CAUTION: For duplex SI390 pairs, the S-VOL and its associated T-VOL(s) are usually not identical
because SI390 update copy operations are asynchronous. Therefore, if a pair is deleted with status other
than split, the data integrity of the T-VOL cannot be guaranteed.
Example: TSO Delete Command
Example: ICKDSF Delete Command
CESTPAIR DEVN (X ‘DE80’ ) PRIM (X ‘0080’ ,30158,X ‘00’ ) SEC (X ‘0080’ ,30158,X ‘01’ )
MODE (RESYNC) PACE (15)
//EPAIR JOB
// EXEC PGM=ICKDSF
//SYSPRINT DD SYSOUT=*
//DD1 DD UNIT=SYSDA,DISP=SHR,VOL=SER=DKDE80
//SYSIN DD *
PPRCOPY ESTPAIR DDNAME(DD1) PRI(X’0080’,30158,X’00’) SEC(X’0080’,30158,X’01’)
MODE(RESYNC) PACE(15)
/*
//
CDELPAIR DEVN (X ‘DE80’ ) PRIM (X ‘0080’ ,30158,X ‘00’ ) SEC (X ‘0080’ ,30158,X ‘01’ )
//EPAIR JOB
// EXEC PGM=ICKDSF
//SYSPRINT DD SYSOUT=*
//DD1 DD UNIT=SYSDA,DISP=SHR,VOL=SER=DKDE80
//SYSIN DD *
PPRCOPY DELPAIR DDNAME(DD1) PRI(X’0080’,30158,X’00’) SEC(X’0080’,30158,X’01’)
/*
//