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| Suggest some High Availabity Methods |
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| Mitra |
 Posted: Fri Jun 03, 2011 10:16 am Post subject: |
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Voyager
Joined: 21 Mar 2011
Posts: 78
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| bruce2359 wrote: |
| I'm not sure what are you expecting? You can script the startup of the next standby. You can script the startup of the next standby after that. |
How can we script it as we never know when the failover will occur
so do we need to continuously check the active instance and make the Script run for stand by when ever it can't find the active instance availabilty?
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| Vitor |
| Posted: Fri Jun 03, 2011 10:22 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Mitra wrote: |
| do we need to continuously check the active instance and make the Script run for stand by when ever it can't find the active instance availabilty? |
Yes. You need to build this, and all the other things that are built into HA software products. Because if you're not buying one, you need to build one. How much automation you can get into this depends on how much time & money you devote to the development.
Which comes back to the point about how much HA software "costs". If you're spending as much developing your own solution (and maintaining it as the years go by and WMQ et al change) as a commercial solution costs, is it really a saving? Because with a commercial solution, the guy who wrote it won't have left the company at any point & you'll still get support.
Remember most HA products use one kind of script or another to stop & start instances.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| Mitra |
| Posted: Fri Jun 03, 2011 10:28 am Post subject: |
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Voyager
Joined: 21 Mar 2011
Posts: 78
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| Vitor wrote: |
| Mitra wrote: |
| do we need to continuously check the active instance and make the Script run for stand by when ever it can't find the active instance availabilty? |
Yes. You need to build this, and all the other things that are built into HA software products. Because if you're not buying one, you need to build one. How much automation you can get into this depends on how much time & money you devote to the development.
Which comes back to the point about how much HA software "costs". If you're spending as much developing your own solution (and maintaining it as the years go by and WMQ et al change) as a commercial solution costs, is it really a saving? Because with a commercial solution, the guy who wrote it won't have left the company at any point & you'll still get support.
Remember most HA products use one kind of script or another to stop & start instances. |
So can you suggest me which is the best HA for my situation right now
is it good to stay with VCS rather than going for any new one by removing it? or to go and opt any thing
Red hat Cluster Suite , Sun Cluster Data Service for WebSphere MQ
how about these ? will they be reliable |
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| Vitor |
| Posted: Fri Jun 03, 2011 10:38 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Mitra wrote: |
| So can you suggest me which is the best HA for my situation right now |
No. Because only you know your situation and most importantly the cost to your business of a failure & how much they're prepared to pay to mitigate.
| Mitra wrote: |
| is it good to stay with VCS rather than going for any new one by removing it? |
Again, only you know how keen your management are to remove VCS, i.e. how much too expensive it is. Clearly there's a saving in effort in not removing it and configuring something else, but how much? How many servers does it currently protect? How complex is the protected software stack?
| Mitra wrote: |
Red hat Cluster Suite , Sun Cluster Data Service for WebSphere MQ
how about these ? |
How about them?
| Mitra wrote: |
| will they be reliable |
I feel sure all these vendors provide support.
You're in a software evaluation & purchasing situation. If you're not comfortable, you might benefit from investiging in a few days consultancy from an experienced person.
But given how cost-averse your management seem to be, I suspect you're stuck. 
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Insanity is the best defence. |
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