[HA Two Nodes] no Shared Storage

[Muhammad Alim]

Hello, i am trying to configure my Cluster which have 2 nodes in it with HA.
but unfortunately i don't have any storage share like NFS, FC, iSCSI etc.

I only have 2 nodes with :
2TB Hardisk configured RAID 1 in each node.

So my question, is it possible to configure HA in my condition ?

Thanks

 

[cesarpk]

Hello, i am trying to configure my Cluster which have 2 nodes in it with HA.
but unfortunately i don't have any storage share like NFS, FC, iSCSI etc.

I only have 2 nodes with :
2TB Hardisk configured RAID 1 in each node.

So my question, is it possible to configure HA in my condition ?

Thanks

Yes, you need to read:
http://pve.proxmox.com/wiki/DRBD
http://pve.proxmox.com/wiki/Two-Node_High_Availability_Cluster
http://pve.proxmox.com/wiki/Proxmox_VE_2.0_Cluster (if you have only 2 PVE Nodes: expected_votes="1")

And i don't remember where is in the forum:
- Manual fence (don't use fence device if you have only two Nodes)
- Shrink the PVE partition for get free space for drbd partition.
- Recomendation: Use 2 NICs 1 Gb/s to make Bonding "balance-round robin" for each DRBD Volume if you don't need more of 220 MB/s for write to HDD in each DRBD Volume, otherwise you can use NICs of 10 Gb/s instead of 1 Gb/s

Note: For DRBD partition, is better to have 2 partitions DRBD, and in each DRBD partition run VMs in a PVE Node, of this mode, if you have problems with a Node or with a replication DRBD (for example: the Network cables were cut), will be more easy to do resyncronization of the DRBD Volume (and can do it online) when the Node returns to PVE cluster or the system of replication is working again

I have these configurations and works very well in production enviroments

 

[Muhammad Alim]

Yes, you need to read:
http://pve.proxmox.com/wiki/DRBD
http://pve.proxmox.com/wiki/Two-Node_High_Availability_Cluster
http://pve.proxmox.com/wiki/Proxmox_VE_2.0_Cluster (if you have only 2 PVE Nodes: expected_votes="1")

And i don't remember where is in the forum:
- Manual fence (don't use fence device if you have only two Nodes)
- Shrink the PVE partition for get free space for drbd partition.
- Recomendation: Use 2 NICs 1 Gb/s to make Bonding "balance-round robin" for each DRBD Volume if you don't need more of 220 MB/s for write to HDD in each DRBD Volume, otherwise you can use NICs of 10 Gb/s instead of 1 Gb/s

Note: For DRBD partition, is better to have 2 partitions DRBD, and in each DRBD partition run VMs in a PVE Node, of this mode, if you have problems with a Node or with a replication DRBD (for example: the Network cables were cut), will be more easy to do resyncronization of the DRBD Volume (and can do it online) when the Node returns to PVE cluster or the system of replication is working again

I have these configurations and works very well in production enviroments

I am so sorry, could you help me by giving complete tutorial, coz i am new to proxmox.
Mayble little bit hint. What did you do with your two nodes machine so that you can configure HA in it.

Thanks

 

[cesarpk]

I am so sorry, could you help me by giving complete tutorial, coz i am new to proxmox.
Mayble little bit hint. What did you do with your two nodes machine so that you can configure HA in it.

Thanks

I think that you will should to do practices of each item, because for tell you step by step that you have to do is very difficult. Generally the forum is used for do specific questions.

Other option is study the courses that Proxmox offers.