DescriptionTahlia Richardson
2018-07-30 06:16:20 UTC
From https://bugzilla.redhat.com/show_bug.cgi?id=1497925#c5
"Forth to our latest conversation with Yaniv and as we agreed, I'm providing my recommendations:
IMHO
We should recommend to have stable network infrastructure and storage environment, properly designed by network professionals, with properly configured DNS and DHCP records, prior to any SHE deployments.
For HA to work properly, LAG/Bond/Ether-channel should be used for layer two (L2) link failures and network congestions, for redundancy customers should use pair of NICs on hosts, such design will eliminate single NIC failure on host's level.
Storage connectivity should use either multiple dedicated NICs to work in separate network as multi-path or at least to operate in multiple storage-dedicated VLANs over shared or dedicated Bond/LAG/Ether-channel, if Bond will be shared with other network traffic, then proper QOS is required for storage and other network traffic. FC should have either two HBAs or at least one dual HBA for L2 link fail over protection.
Ether-channel/Bond/LAG is meant for link failure protection at L2 level only and for providing greater throughput, while single physical link is insufficient and aggregation of multiple physical links in to one logical link is required.
On storage side we should also recommend to have either several Ethernet connections or single/multiple ether-channels, for redundancy and greater throughput."