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тАО11-06-2007 08:09 AM
тАО11-06-2007 08:09 AM
MSA 1000 Active/Active
What are the benefits of using the active/active firmware?
Iain
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тАО11-06-2007 02:21 PM
тАО11-06-2007 02:21 PM
Re: MSA 1000 Active/Active
There is no fail over time as both controllers are active at all times but MPIO is really important.
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тАО11-06-2007 05:40 PM
тАО11-06-2007 05:40 PM
Re: MSA 1000 Active/Active
The other one is that both controllers can own and process I/Os for different logical disks. So a path failure on one host does not cause a failover of all logical disks to the second controller.
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тАО11-07-2007 03:32 AM
тАО11-07-2007 03:32 AM
Re: MSA 1000 Active/Active
Regards
Iain
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тАО11-07-2007 05:48 AM
тАО11-07-2007 05:48 AM
Re: MSA 1000 Active/Active
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManualтМй=en&cc=us&docIndexId=179111&taskId=135&prodTypeId=18964&prodSeriesId=421492
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тАО11-07-2007 07:33 AM
тАО11-07-2007 07:33 AM
Re: MSA 1000 Active/Active
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тАО11-07-2007 09:56 AM
тАО11-07-2007 09:56 AM
Re: MSA 1000 Active/Active
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тАО11-07-2007 10:09 AM
тАО11-07-2007 10:09 AM
Re: MSA 1000 Active/Active
Also on my MSA I have an extra disk enclosure I have linked on SCSI bus A on the controller to SCSI bus A on the second enclosure when I look in the ACU it only shows the first 7 drives and is not seeing the other 4 drives in the second enclosure.
Regards
Iain
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тАО11-07-2007 11:40 AM
тАО11-07-2007 11:40 AM
Re: MSA 1000 Active/Active
I think you will need to go from SCSI A to SCSI B on the second enclosure. Mine only has one port on the second enclosure so I can not confirm that but it does start at SCSI A.
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тАО11-08-2007 12:29 AM
тАО11-08-2007 12:29 AM
Re: MSA 1000 Active/Active
Iain