Kiran 3 and 4 wont be running though. They will only be started when data center 1 goes down. Also where do I configure the different locations ? On 28 Oct 2014 21:15, "Kiran Ayyagari" <[email protected]> wrote:
> > > On Tue, Oct 28, 2014 at 10:08 PM, Paul Simpkins < > [email protected]> wrote: > >> Hi all, >> I've managed to bring up my ApacheDS (2.0) servers in Multi Master config >> - and they are happily replicating between each other (LDAP1 and LDAP2). >> This has given me my HA solution. >> I now want to introduce the DR aspect of the solution, with a second data >> centre that is running dark. >> >> Initially I thought to just use Multi Master across the 4 machines (LDAP >> 1, 2 3 and 4) but as the second data centre is only meant to be used in DR >> circumstances, then this solution doesn't really fit. >> >> So my idea is the following. >> Keep Multi Master configured across LDAP 1 and 2. >> Each LDAP server to write it's store to a shared disk. A different >> location for each server.(/instances/default/* >> Install the ApacheDS server on LDAP3 and LDAP4. (machines are mirrors of >> LDAP 1 and 2) >> When DR occurs it will start machines LDAP 3 and 4 >> Start ApacheDS on LDAP3 and LDAP4 - with the idea to 'use' the data that >> is on the shared disk. >> >> Is this viable ? Is it possible to move the 'store' of an already running >> server to a different place ? >> >> it is possible, however I suggest to configure 3 & 4 as slaves of 1 & 2 > and write to a different location > (on a different disk, if possible) > >> Regards >> Paul >> >> >> > > > -- > Kiran Ayyagari > http://keydap.com >
