data on the R2 side may be non-current and thus a risk that data loss

 

will occur when starting the package up on the R2 side. To have

 

automatic package startup under these conditions, set

 

AUTOR2RWNL=0

AUTOR2XXNL

Default: 0

 

A value of 0 for this variable indicates that when the package is being

 

started on an R2 host and at least one (but not all) SRDF links are

 

down, the package will be automatically started. This will normally be

 

the case when the ‘Partitioned+Suspended’ RDF Pairstate exists. We

 

cannot check the state of all Symmetrix volumes on the R1 side to

 

validate conditions, but the Symmetrix on the R2 side should be in a

 

‘normal’ state. To require operator intervention before starting the

 

package under these conditions, set AUTOR2XXNL=1.

AUTOSWAPR2

Default: 0

 

A value of 0 for this variable indicates that when the package is failing

 

over to Data Center 2, it will not perform R1/R2 swap. To perform an

 

R1/R2 swap, set AUTOSWAPR2=1/AUTOSWAPR2=2. This allows an

 

automatic R1/R2 swap to occur only when the SRDF link and the two

 

Symmetrix are properly functioning. When AUTOSWAPR2 is set to 1,

 

the package will attempt to failover the device group to Data Center

 

2, followed by R1/R2 swap. If either of these operations fails, the

 

package will fail to start on Data Center 2. When AUTOSWAPR2is set

 

to 2, the package will continue to start up even if R1/R2 swap fails,

 

provided the failover succeeds. In this scenario, the data will not be

 

protected remotely. AUTOSWAPR2 cannot be set to 1 or 2 if

 

CONSISTENCYGROUPS is set to 1.

 

Verify you have the minimum requirements for R1/R2 Swapping by

 

referring to most up-to-date version of the Metrocluster release notes.

AUTO_SPLITR1

Default: 0

 

This variable is used to indicate whether a package is allowed to start

 

when it fails over from an R1 host to another R1 host when the device

 

group is in the split state. A value of 0 for this variable indicates that

 

the package startup attempt will fail. To allow startup of the package

 

in this situation, the variable should be set to a value of 1.

CLUSTER_TYPE

This parameter defines the clustering environment in which the script

 

is used. This is, set to “metro” if this is a Metrocluster environment and

 

“continental” if this is a Continentalclusters environment. A type of

 

“continental” is supported only when the HP Continentalclusters product

 

is installed.

CONSISTENCYGROUPS

Default: 0

 

This parameter tells Metrocluster whether or not consistency groups

 

were used in configuring the R1 and R2 volumes on the Symmetrix

 

frames. A value of 0 is the normal setting if you are not using

 

consistency groups. A value of 1 indicates that you are using

 

consistency groups. (Consistency groups are required for M by N

 

configurations.)

 

If CONSISTENCYGROUPS is set to 1, AUTOSWAPR2 cannot be set to

 

1. Ensure that you have the minimum requirements for Consistency

 

Groups by referring to Metrocluster release notes.

DEVICE_GROUP

This variable contains the name of the Symmetrix device group for the

 

package on that node, which contains the name of the consistency

 

group in an M by N configuration.

492 Environment File Variables for Metrocluster with EMC SRDF