03-26-2020 04:34 AM
Hi all! I have couple question about Cisco HyperFlex Edge Architecture.
For example:
I have 3 site with 3 HF node HX220c and between site i have WAN channel (internet\sd-wan)
1)What requirment for WAN throuthput in this case? Minimum.
I'm afraid what HyperFlex sync will utilize all my wan channel. And how often they sync?
2)I can build 3 independent HF node (per site) or its one storage for all sites?
Thanks!
Solved! Go to Solution.
03-26-2020 12:21 PM - edited 03-26-2020 12:28 PM
What Hyperflex 'sync' data are you referring to? Hyperflex guestVM replication/DP traffic? If so, min hx replication traffic requirements are:
As to question2, if you are asking about stretch cluster, https://www.cisco.com/c/en/us/td/docs/hyperconverged_systems/HyperFlex_HX_DataPlatformSoftware/HyperFlex_Stretched_Cluster/3_5/b_HyperFlex_Systems_Stretched_Cluster_Guide_3_5/b_HyperFlex_Systems_Stretched_Cluster_Guide_3_5_chapter_010.html, that has pretty stringent bandwidth requirements of 10GB:
10 Gbps dedicated, 5-ms Round-Trip Time (RTT) latency between the two active sites is required.
100 Mbps, 200 ms-RTT worst case latency for 16 kilobyte packet sizes between the active sites and witness site is required.
Kirk...
03-26-2020 12:21 PM - edited 03-26-2020 12:28 PM
What Hyperflex 'sync' data are you referring to? Hyperflex guestVM replication/DP traffic? If so, min hx replication traffic requirements are:
As to question2, if you are asking about stretch cluster, https://www.cisco.com/c/en/us/td/docs/hyperconverged_systems/HyperFlex_HX_DataPlatformSoftware/HyperFlex_Stretched_Cluster/3_5/b_HyperFlex_Systems_Stretched_Cluster_Guide_3_5/b_HyperFlex_Systems_Stretched_Cluster_Guide_3_5_chapter_010.html, that has pretty stringent bandwidth requirements of 10GB:
10 Gbps dedicated, 5-ms Round-Trip Time (RTT) latency between the two active sites is required.
100 Mbps, 200 ms-RTT worst case latency for 16 kilobyte packet sizes between the active sites and witness site is required.
Kirk...
03-26-2020 12:55 PM - edited 03-26-2020 01:19 PM
Thanks Kirk!
1) Yes thats wthat i mean! but I couldn't find answer on Cisco.com (
10mb it look like a true.
2)I mean for example, if i have 1 VM on some node on one site and all 3 nodes on this side is die simultaneously a VM still work (or restart) on another site? Or VM replication only in one site nodes?
Thanks for help!
03-26-2020 01:14 PM - edited 03-26-2020 01:19 PM
So, you can have multiple replication groups, that go in both directions (i.e. site 1 has a,b,c VMs replicating to site 2. Site 2 has VMs e,f,g replicating to site 1)
Kirk....
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