Forum Discussion
MahendraRaj_131
Nimbostratus
NimbostratusLTM Clustering
Hi
I am working on DC DR solution. I was just thinking whether can we have multiple LTMs in single cluster like.. the Primary DC will have 2 x LTMs and the DR DC will have one LTM. Can I cluster all these three in one?
Your suggestion is highly appreciated.
Thanks Mahendra
You sure can. We do exactly that. You will need to create a sync-failover device group with all the LTMs in it. Look at the Redundant System Configuration Guide, and in particular the section on device groups.
As with an HA pair, you need layer 2 connectivity between all the LTMs.
uniAltostratus
You sure can. We do exactly that. You will need to create a sync-failover device group with all the LTMs in it. Look at the Redundant System Configuration Guide, and in particular the section on device groups.
As with an HA pair, you need layer 2 connectivity between all the LTMs.
Vishal_Keswani_can I have 4 LTMS in one Cluster and provide a Single VIP ( Virtual IP address) for a pool across all the 4 LTMS ? I have a Pair in Production and a Pair in DR DC and the VLANS are stretched across DC. Is this configuration supported ?
uni_87886Cirrostratus
You sure can. We do exactly that. You will need to create a sync-failover device group with all the LTMs in it. Look at the Redundant System Configuration Guide, and in particular the section on device groups.
As with an HA pair, you need layer 2 connectivity between all the LTMs.
- Vishal_Keswani_can I have 4 LTMS in one Cluster and provide a Single VIP ( Virtual IP address) for a pool across all the 4 LTMS ? I have a Pair in Production and a Pair in DR DC and the VLANS are stretched across DC. Is this configuration supported ?
MahendraRaj_131Thank you very much
HamishCirrocumulus
You do need to be running v11 or later though. v10 and earlier were strictly 2 node HA (active/active or more usually active/standby).
- Sli_85735
Can you achieve the same, even if you have 2 physical devices ( LTM 3900) in your 1 Data centre and the other Data Centre has an LTM VE Edition. Or do I need all 3 to be physical devices?
Thomas_GobetSince the 11.4 version you can have an heterogeneous cluster.
That means you can have different hardware and VE edition in a same cluster.If you're running an oldest version you can't.
- Sli_85735
Thank you very much.. They are currently running 11.2, So if I upgrade all 3 LTMs to 11.4. The clustering will be possible (?)
- Thomas_Gobet
Yes, you need to upgrade them.