Transaction Replication software for Nonstop server

Manu

unread,

Apr 13, 2011, 11:16:17 AM4/13/11

to

Hi folks,

We are in a requirement to replicate the ENSCRIBE database files
transaction from production to DR. The replication has been performing
using a homegrown programs that seems to be inefficient. If you guys
are aware of any HP/Third party software that does replicate the
transactions , please do post here. Also, our database is non-audited
by TMF

Keith Dick

unread,

Apr 13, 2011, 1:25:13 PM4/13/11

to

I don't know of a product that will do what you want, but Henry Norman has a pretty extensive table of NonStop software and service providers on his web site. Go to

https://sites.google.com/site/microtechnonstop/

and look down the left column for link whose name begins with 5001. That will take you to the page from which you can download his table. It is an Excel spreadsheet, and one of the columns contains a brief list or description of the products provided by a company. You might have to go to the web sites of companies who look like they have products similar to what you want to find other products, so it won't be a quick search.

I have a feeling that you won't find a simple, ready-made solution. I could be wrong, so do look in Henry's list for a complete solution, but without the TMF log from which to get the changes, I think you won't find anything that will work without integrating it into your application. You application apparently already has some method of capturing the updates. If it is just tranferring those update records to the disaster recovery system that is the bottleneck, you might find some products that you could use to replace whatever method of transferring the data you currently are using with some method that is more efficient, so keep that general approach in mind as you look through Henry's list.

Since I don't know anything about your current approach, I've probably already speculated more than I should, so I'll stop here.

Dave

unread,

Apr 13, 2011, 4:33:02 PM4/13/11

to

I would say you need to do this in two steps. First do what many
other NonStop users have done and get your files audited easily using
HP NonStop AutoTMF. No programming changes and simple to install.
Once you are creating an audit trail you can choose either RDF from HP
or a third-party replication product such as Shadowbase from Gravic to
reliably maintain your DR site.

Dave

ghr

unread,

Apr 14, 2011, 1:35:04 AM4/14/11

to

DRNet from NTI can do this. It does not require TMF. There is no code
modification. Search for NTI DRNet. Unlike AUTOTMF/RDF it can also be
used in an ACTIVE-ACTIVE scenario if that's where you're headed.

Gustavo Martinez

unread,

Apr 14, 2011, 10:14:54 AM4/14/11

to

Hi Manu,

In addition to the mentioned, there is another third party software
from Oracle: GoldenGate. It also has a module to "create" trails if
your programs are not using TMF (without any source modification).
Basically all of the tools are working using the same aproach, the
provide you a library you have to bind on the programs (if you are not
using TMF). They intercept the IO system calls like WRITEX, do some
work (like writing the record to a trail) and then resend that
ifnormation to the target database.

Regards,
Gustavo.

Jack

unread,

Apr 14, 2011, 11:29:31 AM4/14/11

to

TMF-Audit Toolkit is another solution that intercepts ENSCRIBE non-
Audited data and TMF-enables it, creating Audited data.
FileSync-Audit intercepts and replicates the non-Audited data to the
DR site.

No programming changes needed and less $$$.

Jack

Dave

unread,

Apr 14, 2011, 1:48:35 PM4/14/11

to

Manu - as you can see there are a number of solutions available to
you. They do use a couple of different technically different
approaches to the solution and they all carry costs - either monetary
or efficiency and speed. Most, if not all, of these vendors offer 60
trials and they are all solutions that are pretty easy to install and
use. I would suggest that you do a "try and buy" to see which one
fits your needs.

Cheers,
Dave

Dave

unread,

Apr 14, 2011, 3:26:32 PM4/14/11

to

Just to clarify, most vendors will offer a free 60 DAY trial of their
software!

Pete

unread,

Apr 15, 2011, 4:33:53 AM4/15/11

to

I know of one European company that uses a SanDisc architecture that
replicates everything written to it synchronously to a local mirror as
well as a DR one. A write completion in your application implies an
update to all the synchronous mirrors (they also have updates to a
second DR site, but these are asynchronous).