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

7-12 Performing ShadowImage for z/OS Pair Operations Using PPRC
Hitachi ShadowImage™ for IBM
®
z/OS
®
User’s Guide
Parameter Value Description
PRIM Primary volume (S-VOL): SSID, serial
number, channel connection address, and CU
number
*1
.
You can set an additional parameter
corresponding to each request instead of a serial
number.
For a Quick Resync request, set MRF00. This
parameter is valid for MODE(RESYNC) only.
For a Quick Restore request, set MRQ00. This
parameter is valid for MODE(RESYNC) only.
For a Reverse Copy request, set MRR00. This
parameter is valid for MODE(RESYNC) only.
If you set a parameter other than the parameters on
the left, the command will be rejected.
SEC Secondary volume (T-VOL): SSID, serial
number, channel connection address, and CU
number
*1
.
MODE RESYNC Re-establish a split or suspended volume pair.
This parameter is required.
1 Copy speed of resynchronization will be slow,
except when the DKC emulation type is 2105 or
2107. When the DKC emulation type is 2105 or
2107, the copy speed of resynchronization is
always medium regardless what you specify for
the PACE parameter.
PACE
other than 1 Copy speed of resynchronization will be medium.
CRIT Not applicable. SIz does not use this parameter. Siz ignores it.
YES MSGREQ function is applicable. MSGREQ
NO MSGREQ function is not applicable.
ONLINSEC
*1*2
YES
Pair resynchronize operation (forward) will be
performed whether the T-VOL is online or not.
Pair resynchronize operation (backward) will be
performed whether the S-VOL and T-VOL are online
or not.
NO
Pair resynchronize operation (forward) will not be
performed if the T-VOL is online .
Pair resynchronize operation (backward) will not
be performed if the S-VOL and T-VOL are online.
*Note 1: CU number or the parameter is valid only for the DKC emulation
type 2105 or 2107.
*Note 2: When you do not specify the parameter, the result is same as when
you specify NO for this parameter.
Figure 7-6 shows an example of the CESTPAIR command with the
MODE(RESYNC) parameter.
CESTPAIR DEVN (X ‘DE80’ ) PRIM (X ‘0080’ ,30158,X ‘00’ ) SEC (X ‘0080’ ,30158,X ‘01’ )
MODE (RESYNC) PACE (15)