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тАО06-25-2003 04:29 AM
тАО06-25-2003 04:29 AM
If yes it will be grateful if I can discuss the steps to be performed).thanks in advance for your reply.
Solved! Go to Solution.
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тАО06-25-2003 05:55 AM
тАО06-25-2003 05:55 AM
SolutionYes, of course it is possible to use software mirroring for RAID volumes, just as for ordinary physical disks. From HP-UX point of view there is no difference with a RAID volume or a physical disk. But a rather expensive solution. You need to install the Mirror UX product (it is licensed).
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тАО06-25-2003 06:17 AM
тАО06-25-2003 06:17 AM
Re: mirroring two VA7400
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тАО06-25-2003 09:09 AM
тАО06-25-2003 09:09 AM
Re: mirroring two VA7400
If you do not build this kind of redundancy level topology then it's no need to mirror one VA to another. VA is high available system, built on different RAID levels (autoraid mode) to improve reliability/availability and perfomance, having redundant controllers and can be configured to have redundant paths etc.
It's not wise to build software raid over hardware one. The only important action you should take regularly is to review VA's state (armdsp -a) and its logs (armlog -e) and check if VA is healthy. If there will be any failed components or suspicious events I would call HP for assistance... you know even very very highly redundant system can crash if you'll not notice (multiple) component failures in time!
Eugeny
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тАО06-26-2003 12:53 AM
тАО06-26-2003 12:53 AM
Re: mirroring two VA7400
What you are thinking of is a very good and HP supported solution! It' called "HP Extended Campus Cluster"
See http://h71028.www7.hp.com/HP/render/1,1001,5918-6-100-225-1,00.htm and ftp://ftp.hp.com/pub/enterprise/extended_campus_cluster.pdf
We do have some customers doing exactly that!
I suggest you invite your local HP team to support or do the implementation. They also know the supported levels and needed patches of HP-UX, ServiceGuard, MirrorUX and the VA7400.
Attached are the 3 possible configurations and an example of an installation here in Switzerland.
Cheers
Peter