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--- storage:svc_esc_config [2024/11/08 00:05]
manu [Storage connectivity]
+++ storage:svc_esc_config [2025/03/17 17:17] (current)
manu
@@ Line 5: / Line 5: @@
 Example of cabling
-In the best recommandations, alternate one port on Fabric SAN A, then a port on B...
+In the best recommandations, alternate one port on Fabric SAN A (blue), then a port on B (red)...
+{{:storage:svc_fc_connexions_08.png?4000}}
+{{:storage:svc_fc_connexions_09.png?2000}}
-{{:storage:SVC SA2-SV3 connection.png?650}}
 Set the port mask to 11, so only ports 1 and 2 are able to communicate in node
 <cli prompt='>'>
-SVC:superuser>chsystem -localfcportmask 00000011
+SVC:superuser>chsystem -localfcportmask 00001100
 SVC:superuser>lssystem |grep mask
-local_fc_port_mask 0000000000000000000000000000000000000000000000000000000000000011
+local_fc_port_mask 00000000000000000000000000000000000000000000000000000000001100
 </cli>
-FIXME Why using 2 set of ports for host with different speed ?\\
+FIXME Why using 2 set of ports for host with different speed flagged 16Gb and 32Gb?\\
-It's a best practice preventing SVC ports to negotiate between different speeds on hosts
+It's a best practice preventing SVC ports to negotiate between different speeds on hosts. Dedicated ports for high speed traffic. But on SAN switches leave the auto-negotiation so both can do 32Gb.
 {{:storage:SAN zoning for SVC enhanced stretch cluster.png?650}}

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