.SAN design reference guide Vol. 1-5 785350-001

Table 150 (page 301) describes the network bandwidth requirements and IP gateway support for
XCS 6.x with C-series switches.
Table 150 Network requirements for long-distance IP gateways and C-series switches with XCS 6. x
Minimum IP bandwidth
1
and maximum DR groups
2
Minimum supported
firmware versionGateway pair
Single or shared IP link maximum latencyDual IP link maximum latency
0 to 100 ms one-way0 to 100 ms one-way
At least 4 Mb/s for 1 DR groupAt least 2 Mb/s for 1 DR group
See note.
3
HP IP
Distance
Recommended: At least 10 Mb/s for 1 to 5 DR
groups
Recommended: At least 5 Mb/s for 1
to 5 DR groups
Gateway
(mpx110)
MPX200
Multifunction
Router
.
C-series IPS-8,
14/2, 18/4,
MDS 9216i,
MDS 9222i
Legacy IP gateways
At least 4 Mb/s for 1 DR groupAt least 2 Mb/s for 1 DR group
.C-series IPS-4
Recommended: At least 10 Mb/s for 1 to 5 DR
groups
Recommended: At least 5 Mb/s for 1
to 5 DR groups
1
HP P6000 Continuous Access requires a minimum of 2 Mb/s of IP bandwidth per path, or 4 Mb/s for two paths.
2
Assumes single-member DR groups (1 virtual disk). For the maximum number of DR groups supported based on maximum IP
bandwidth, see Table 114 (page 228).
3
For current support, see the SPOCK website at http://www.hp.com/storage/spock. You must sign up for an HP Passport to enable
access.
HP P6000 Continuous Access with VCS 4.x
This section describes the VCS 4.x data replication specifications and the supported minimum and
maximum transmission rates for qualified switch and gateway pairs.
Table 151 (page 301) lists the network requirements for long-distance IP gateways that work with
EVA VCS 4.x.
Table 151 Network requirements for long-distance IP gateways with VCS 4. x
DescriptionSpecification
IP bandwidth
1
• Must be dedicated to the HP P6000 Continuous Access storage replication
function.
• The minimum IP bandwidth required for HP P6000 Continuous Access with
FCIP is 2 Mb/s per path, or 4 Mb/s for two paths when using one IP link.
• There is no support for dynamic pacing of the gateway.
For the maximum number of DR groups, see Table 114 (page 228).
Maximum number of DR groups
For minimum supported bandwidth and resulting maximum number of DR
groups based on the average packet-loss ratio and one-way inter-site latencies,
see Table 152 (page 303) and Table 153 (page 304).
1,500 bytesMTU of the IP network
100 ms one-way or 200 ms round-tripMaximum latency
1
Low-loss network: 0.0012% average over 24 hours
Average packet-loss ratio
2
HP storage replication products 301