Check Data Paths And Latency - Western Digital ActiveScale X100 Installation Manual

ActiveScale™ X100 Installation Guide
• N
Site _SystemNetwork1
• N
Site _SystemNetwork2
• N
Site _Column1_StorageNetwork1
•
SiteN_Column1_StorageNetwork2
• For ActiveScale X100 with Column 2:
– N
Site _Column2_StorageNetwork1
– N
Site _Column2_StorageNetwork2
• For ActiveScale X100 with Column 3:
– N
Site _Column3_StorageNetwork1
– N
Site _Column3_StorageNetwork2
Tip: There are four networks required at each site for ActiveScale X100. .
Figure 5-49. A multi-site ActiveScale X100 system

5.3.2.4 Check data paths and latency

Your network/WAN infrastructure must ensure that the maximum round trip time (RTT) between each site
is no more than 200ms.
Using your settings for
SiteN_SystemNetwork1
in both directions against all three sites; in other words:
and
SiteN_SystemNetwork2
49
, run the following tests