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тАО03-07-2009 02:43 PM
тАО03-07-2009 02:43 PM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
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тАО03-08-2009 10:26 AM
тАО03-08-2009 10:26 AM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
http://h20293.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=CommandViewEVA9.0
(In my opinion, the WOCP is only suitable for some emergency management tasks and is *NOT* a replacement for a management server, because important things like call home or online disk drive firmware updates are not available)
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тАО03-08-2009 02:38 PM
тАО03-08-2009 02:38 PM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
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тАО03-09-2009 01:36 AM
тАО03-09-2009 01:36 AM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=110&prodSeriesId=471497&prodTypeId=18964&objectID=c01625532
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тАО03-17-2009 03:13 AM
тАО03-17-2009 03:13 AM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
I have just been involved with an EVA4400 install. We noted that with the EVA 4400 you only seem to be able to shut down both controllers at the same time and not individually.
Also, the controllers aren't labelled as hotswap.
I take this to mean that if we have a controller failure we will need to schedule downtime for the whole eva to install the replacement controller?
We did some basic testing as we are not at the production stage yet. Basically we have a couple of disk groups and published vdisks. We pulled power supplies/ batteries / fans / loop cables / etc, Command View seems slightly more responsive than older versions but still quite slow and often not displaying the fault for quite some time.
We also disconnected all loop ports and device ports from Controller B to try and simulate a Controller failure. Command View basically froze up and was unresponsive. We have tested the MPIO drivers since on our management host and they are working correctly. Has anyone else tested and experienced anything like this?
Cheers,
James
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тАО03-17-2009 03:50 AM
тАО03-17-2009 03:50 AM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
Comand View only talks to the master controller, if you remove the FC cables from that one, Command View will not be able to access the EVA.
It's not the same a controller with the ports disconneted that a failed controller.
Also, EVA4400 can be shut down individually, in fact it's stated on the controller replacement instructions:
a. In the navigation pane, select Storage System > Hardware > Controller Enclosure.
b. Select the appropriate controller (Controller 1 or Controller 2) to halt.
c. Click the Shut down tab.
d. In the Halt Controller section of the Shut Down Controller window, click Halt. This halts controller processing while the power remains on.
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тАО03-17-2009 08:28 AM
тАО03-17-2009 08:28 AM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
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тАО03-17-2009 12:34 PM
тАО03-17-2009 12:34 PM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
If your master controller goes down does this role automatically switch to the second controller or do you lose access to commandview during this stage?
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тАО03-17-2009 01:45 PM
тАО03-17-2009 01:45 PM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
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тАО03-17-2009 01:53 PM
тАО03-17-2009 01:53 PM
Re: EVA4400: how fault tolerant it is ?; Difference with EVA6X00/8X00
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