Network Requirements For The Mpx110 With Xcs And Vcs - HP StorageWorks 6100 - Enterprise Virtual Array User Manual

Table 2 Network requirements for the mpx110 with XCS and VCS
Specification
1
Bandwidth
Maximum number of DR groups
MTU of the IP network
1
Maximum latency
Average packet-loss ratio
3
Latency jitter
1
Pre-existing restriction
2
A high packet-loss ratio indicates the need to retransmit data across the intersite link. Each retransmission delays transmissions
queued behind the current packet, thus increasing the time to complete pending transactions.
3
Latency jitter is the difference between the minimum and maximum values, and indicates how stable or predictable the network
delay. The greater the jitter, the greater the variance in the delay, which lowers the performance predictability.
30 Configuration rules and guidelines
Must be dedicated to the HP Continuous Access storage replication
function. There is no support for dynamic pacing of the gateway.
See Table 1 for minimum supported bandwidth based on the average
packet-loss ratio and one-way intersite latencies.
1,500 bytes
EVA: 100 ms one-way or 200 ms round-trip
nl
XP: 50 ms one-way or 100 ms round-trip
Low-loss network: 0.0012% average over 24 hours
2
nl
High-loss network: 0.2% average over 24 hours; must not exceed 0.5%
for more than 5 minutes in a 2-hour window
Must not exceed 10 ms over 24 hours
Description