Re: High Availability Solution?

On Aug 23, 6:30 pm, shorti <lbrya...@juno.com> wrote: > Hello, > > I am new to Informix and wanted to get more information about their HA > solutions.  This will be a a Linux platform.  I come from DB2 so I am > familiar with their solutions (HADR, PureScale).  I have found some > information about the following for Informix but I was a little > confused : > > 1) HDR (seems to be the same as DB2's HADR) > 2) Mach 11 - (HDR but can have more than one secondary and those > secondaries allow read and write operations? requires dedicated > servers?) > 3) Innovator C - (also HDR but has only one secondary that allows read > and write operations) ? good for a two node setup but not scalable? IDS can have multiple secondary nodes and the secondary nodes can host DML operations. It does not require additional hardware, just a set your configuration so that the secondary is active. Use of the connection manager will perform load-balancing of the nodes. > > I think I understand HDR but not sure I understand Mach 11 or > Innovator C and what their difference is.  Does anyone know a very > good writeup on those or can explain the main points on the two? > > I am looking for an active/active type solution that can scale > horizontally and maybe even vertically.  DB2's HADR doesnt scale well > beyond two nodes.  PureScale scales horizontally but is very > cumbersome (requires a lot of expensive add ons like dedicated servers > and infiniband network system). > > Your input is appreciated.