[LinuxFailSafe] Does Linuxfailsafe work also without shared disks ?

Marcin Przyczyna mpr@citiworks.de
Tue, 3 Sep 2002 15:34:12 +0200


On Thu, Aug 29, 2002 at 09:34:20AM +0200, Andreas Moroder wrote:
> Hello,
> 
> 
> today we have a NT Cluster with two Oracle Databases, one on both machines. 
> Now we plan to migrate to linux.
> Because the Raid array is a single point of failure, isn't it, we would like to
> have two independent machines, without shared disk, but with the two databases
> that are replicated in master/master mode. In case of failure of one machine, the
> database should migrate to the other machine ( in this case the DB is already
> there but the IP-Adress must migrate and the listener where the clients
> connect,should start )
> 
> Does Linuxfailsafe support such a configuration ?

Yes. 

If you find a sure way NOT to loose data, can you keep your files
on two different drives, on different servers. 
Hint: both devices must have the same names, 
on both machines, and the same mountpoints.
(i.e. /dev/sdb1, mounted under /failsafe )
 
> Do we need to have special NIC's to get a ip different ip address for every
> resource or do we need as many NICs as we have resources ?

No.

On a NIC can you define more than one IP Address.
i.e. :
eth0 10.10.10.1, 
eth0:0 10.10.10.33,
eth0:1 10.10.10.167 ... and so on.
  
Then, all pings on further definied IP's comes ever on eth0 device.

Bye,
mpr.

-- 
Marcin Przyczyna	|
Net & Sys Admin,	|
citiworks AG		|
mpr@citiworks.de	|
+49 89 9925 75356	|