Forum Discussion

boneyard's avatar
boneyard
Icon for MVP rankMVP
Mar 26, 2012

intra / inter network (conection) mirroring on viprion

when reading the Viprion configuration guide it says that F5 advises to use intra (within cluster) network mirroring and that this is mutually exclusive from inter network (between clusters) mirroring...
config
design
rafaelbn's avatar
rafaelbn
Icon for Cirrostratus rankCirrostratus
May 20, 2018

Hello guys!

I know this thread is old, but I'm leaving my findings here as a reference.

I was able to double-check this thing on production environment. We had 2 2400 VIPRION chassis running vCMP. On the chassis, the sys db was configured with between:

root@(NDCLPBIPPRD01)(cfg-sync Standalone)(/S1-green-P:Active)(/Common)(tmos) list sys db statemirror.clustermirroring
sys db statemirror.clustermirroring {
    value "between"
}

But the vCMP was the default with within:

root@(NDCLPBIPPRD-SAS01)(cfg-sync In Sync)(/S1-green-P:Active)(/Common)(tmos) list sys db statemirror.clustermirroring
sys db statemirror.clustermirroring {
    value "within"
}

As expected, the connection mirroring was not happening between the vCMPs.

root@(NDCLPBIPPRD-SAS02)(cfg-sync In Sync)(/S1-green-P:Standby)(/Common)(tmos) show sys connection type mirror
Sys::Connections
Total records returned: 0

When I changed the sys db to mirror between and synced both vCMPs, everything worked like it supposed to.

root@(NDCLPBIPPRD-SAS01)(cfg-sync In Sync)(/S1-green-P:Active)(/Common)(tmos) modify sys db statemirror.clustermirroring value between
root@(NDCLPBIPPRD-SAS01)(cfg-sync In Sync)(/S1-green-P:Active)(/Common)(tmos)
root@(NDCLPBIPPRD-SAS01)(cfg-sync Changes Pending)(/S1-green-P:Active)(/Common)(tmos)
root@(NDCLPBIPPRD-SAS01)(cfg-sync Changes Pending)(/S1-green-P:Active)(/Common)(tmos) run cm config-sync to-group DG-SAS

root@(NDCLPBIPPRD-SAS02)(cfg-sync In Sync)(/S1-green-P:Standby)(/Common)(tmos) show sys connection type mirror
Sys::Connections
10.29.11.110:36600  10.29.4.10:636      10.29.11.110:36600  10.29.4.10:636      tcp  2  (slot/tmm: 1/0)  none
10.29.11.39:28641   172.21.0.245:111    10.29.11.39:28641   172.21.0.245:111    tcp  2  (slot/tmm: 1/0)  none
10.29.11.76:41594   172.25.36.52:1521   10.29.11.76:41594   172.25.36.52:1521   tcp  2  (slot/tmm: 1/0)  none
10.29.11.70:29523   10.29.11.36:6882    10.29.11.70:29523   10.29.11.36:6882    tcp  2  (slot/tmm: 1/0)  none
10.29.11.48:36323   172.21.0.246:111    10.29.11.48:36323   172.21.0.246:111    tcp  2  (slot/tmm: 1/0)  none
10.29.11.76:22708   172.25.36.49:1521   10.29.11.76:22708   172.25.36.49:1521   tcp  2  (slot/tmm: 1/0)  none
10.29.11.44:21629   172.21.0.247:111    10.29.11.44:21629   172.21.0.247:111    tcp  2  (slot/tmm: 1/0)  none

So... Long history short, sys db statemirror.clustermirroring is per chassis AND per vCMP.

Hope this helps!

Cheers! Rafael