EMC VMAX 100K User Manual

Figure 46 SRDF/Metro Witness multiple failure scenarios
S1 S2
W
S1 suspends
S2 remains
accessible to host
S2 calls home
S1 S2
W
S1 failed
S2 suspends
S2 calls home
X
S1 S2
W
S1 suspends
S2 failed
S1 calls home
X
X
S1 S2
W
S1 failed
S2 suspends
S2 calls home
X
S1 S2
W
S1 and S2 remain
accessible to host
Move to bias mode
S1 and S2 call home
S1 S2
W
S1 and S2 suspend
S1 and S2 call home
X
S1 S2
W
S1 remains
accessible to host
S2 suspends
S2 calls home
X
X
X
X
X
X
X
X
S1 S2
W
S1 suspends
S2 failed
S1 calls home
X
S1 S2
W
S1 suspends
S2 suspends
S1 and S2 call home
X
X
X
X
X
Deactivate SRDF/Metro
To terminate a SRDF/Metro configuration, simply remove all the device pairs
(deletepair) in the SRDF group.
Note
The devices must be in Suspended state in order to perform the deletepair operation.
When all the devices in the SRDF/Metro group have been deleted, the group is no
longer part of an SRDF/Metro configuration.
Remote replication solutions
154 Product Guide VMAX 100K, VMAX 200K, VMAX 400K with HYPERMAX OS

EMC VMAX 100K Specifications

General

Model	VMAX 100K
Connectivity	Fibre Channel, iSCSI, FCoE
RAID Support	Yes
Max IOPS	Up to 1 Million
RAID Levels Supported	RAID 1, RAID 5, RAID 6
Maximum Host Connectivity	Up to 256
Operating System Support	Windows, Linux, VMware, AIX, HP-UX, Solaris