Table 41 SRDF features by hardware platform/operating environment (continued)
Feature Enginuity 5876 HYPERMAX OS 5977
VMAX 40K,
VMAX 20K
VMAX
10K
VMAX3 VMAX 250F, 450F,
850F, 950F
l
VMAX 40K:
Enginuity
5876.82.57
or higher
Hardware Supported
l
VMAX 20K:
N/A
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VMAX 40K:
Enginuity
5876.82.57
or higher
N/A Supported
IPv6 and IPsec
IPv6 feature on 10 GbE Supported Supported Supported Supported
IPsec encryption on 1 GbE ports Supported Supported N/A N/A
a.
If both arrays are running HYPERMAX OS, up to 250 RDF groups can be defined across all of the ports on a specific RDF
director, or up to 250 RDF groups can be defined on 1 port on a specific RDF director.
b.
A port on the array running HYPERMAX OS connected to an array running Enginuity 5876 supports a maximum of 64 RDF
groups. The director on the HYPERMAX OS side associated with that port supports a maximum of 186 (250 – 64) RDF groups.
c.
If both arrays are running HYPERMAX OS, up to 250 RDF groups can be defined across all of the ports on a specific RDF
director, or up to 250 RDF groups can be defined on 1 port on a specific RDF director.
d.
A port on the array running HYPERMAX OS connected to an array running Enginuity 5876 supports a maximum of 64 RDF
groups. The director on the HYPERMAX OS side associated with that port supports a maximum of 186 (250 – 64) RDF groups.
e.
If hardware compression is enabled, the maximum number of ports per director is 12
HYPERMAX OS and Enginuity compatibility
Arrays running HYPERMAX OS cannot create a device that is exactly the same size as
a device with an odd number of cylinders on an array running Enginuity 5876. In order
to support the full suite of features:
l
SRDF requires that R1 and R2 devices in a device pair be the same size.
l
TimeFinder requires that source and target devices are the same size.
Track size for FBA devices increased from 64Kb in Enginuity 5876 to 128Kb in
HYPERMAX OS.
HYPERMAX OS introduces a new device attribute, Geometry Compatible Mode
(GCM). A device with GCM set is treated as half a cylinder smaller than its true
configured size, enabling full functionality between HYPERMAX OS and Enginuity
5876 for SRDF, TimeFinder SnapVX, and TimeFinder emulations (TimeFinder/Clone,
TimeFinder VP Snap, TimeFinder/Mirror), and ORS.
The GCM attribute can be set in the following ways:
Do not set GCM on devices that are mounted and under Local Volume Manager (LVM)
control.
Remote replication solutions
116 Product Guide VMAX 100K, VMAX 200K, VMAX 400K with HYPERMAX OS