Greetings,

On 3/21/11, Arun Khan <[email protected]> wrote:
> On Mon, Mar 21, 2011 at 4:25 PM, Rajagopal Swaminathan
> <[email protected]> wrote:

Dear Arun,

At the outset let me thank you for your response.


> Please define your concept of High Availability  -  people have
> different ideas on these buzz words.
>

Perhaps this thread could explain it more:
http://article.gmane.org/gmane.org.user-groups.linux.ilugc/68932


>
> I think 10+ years is a reasonable time frame.  Version upgrades surely
> but changing to some other package - the migration cost could be
> prohibitive.
>

Indeed. That is why they are _very_ bad choices. I forced a software
vendor to support his apps on RHEL/Centos . He is very happy.

>
> Don't know what you mean by this.   IMO anybody using Fedora as a
> server platform and that too in production ... I know people are doing
> it ...

... is, to borrow a word often used in kernel mailing lists for such
ideas,  "braindead".

>> 3. What is the interaction between DSpace etc?
>> 4. Can they both be running in HA peacefully?
>
> IMO, if ERP apps can run in VMs then Koha and DSpace can also run in
> respective VM.
>

Indeed. but for VMs to be available you need HA below that.

>
> What is HA hardware?
>

One example:
a power fencing pdu with an ehternet port should do (25-35K INR) .

I had suggested in the same list in some thread about it.

>
> I think it would be better if you first present an executive summary
> of your paper/experiment.
>

I would certainly prepare that. but before I commit any more time, I
will need to check if the topic is already taken.

With warm regards,

Rajagopal
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