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Unlicensed Powerpath for windows and failover
If I use unlicensed powerpath for windows,
does the failover will work in this case,or I need licensed powerpath for failover functionality
This post is more than 5 years old
3 Posts
0
5121
If I use unlicensed powerpath for windows,
does the failover will work in this case,or I need licensed powerpath for failover functionality
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Anonymous
5 Practitioner
5 Practitioner
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274.2K Posts
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May 11th, 2010 06:00
Basic failover allows you conenct two storage ports to one HBA. If there is a failover on the array then the I/O will be redirected the the redundant storage port. There is no load balancing. If you have a second HBA zoned to storage ports they will be marked as unlicensed and not used when using basic failover.
Zurat
3 Posts
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May 11th, 2010 03:00
I find answer to my question
http://knowledgebase.emc.com/emcice/documentDisplay.do;jsessionid=CE236C2A8F09225C465A4F314FC33880?docType=1006&clusterName=DefaultCluster&resultType=5002&groupId=1&page=&docProp=$solution_id&docPropValue=emc114228&passedTitle=nullhttp://knowledgebase.emc.com/emcice/documentDisplay.do;jsessionid=EB536EB5ABD9FD577034561676A713C6?docType=1006&clusterName=DefaultCluster&resultType=5002&groupId=1&page=&docProp=$solution_id&docPropValue=emc114228&passedTitle=null
Zurat
3 Posts
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May 11th, 2010 03:00
What is it "Basic failover policy"
In my case I have two node Exchange ccr cluster, each node have two "Qlogic Fibre Chanel adapter"
When I disable active addapter ,I see disks in "my computer", I can write/copy data to this disks, but exchange cant write data to disks, and all databases are in failed state.
Can you explain what mean "Basic failover Policy" or give some documentation
SKT2
1.3K Posts
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May 11th, 2010 03:00
Unlicensed PP provides "Basic Failover" policy. You can see same is reported in "powermt display dev=all" too
RRR
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5.7K Posts
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May 11th, 2010 04:00
With the unlicensed PPath you're only allowed to have 1 HBA. With 2 HBA's you need a license.
Brion2
154 Posts
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May 11th, 2010 06:00
Hello. To add to this, Basic Failover mode allows I/O to flow on one path. So, if the HBA has multiple ports, only one port will pass I/O. In the output of "powermt display", one path will be in the "active" state while the others are in the "unlic" state.