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Niels Vejrup Pedersen
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Hi,
In vSphere its possible for manufactures to add their own multipathing drivers, like we know from the MPIO DSM to windows boxes.
It's always been a pain to manually balance paths in vmware - so this will hopefully work this issue out.
I've seen other vendors announce support for these things to vSphere, but nothing from HP.. e.g EMC PowerPath for vSphere.
Do anyone have some information they could share about what HP intends to supply for vSphere as a upgrade to the standard Native MultiPathing software.
Regards,
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Patrick Terlisten
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Jun 1, 2009 20:36:47 GMT
10 pts
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Hello,
AFAIK is there nothing like MPIO planned. PowerPath is a "present" to VMware, an EMC division. Which type of multipathing policy do you use?
Best regards,
Patrick |
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Niels Vejrup Pedersen
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Jun 3, 2009 18:00:07 GMT
N/A: Question Author
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Hi Patrick,
We are currently using the NMP mode.
But with no intelligence in the driver we are having a hard time doing manual path selection on the environments. |
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Patrick Terlisten
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Jun 4, 2009 06:02:59 GMT
Unassigned
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Hello Niels,
I can only repeat: AFAIK is nothing planned, so we all need to load-balance the path ourself. :(
Best regards,
Patrick |
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shIVinator.
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Jun 4, 2009 12:26:56 GMT
10 pts
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I feel your pain. Balancing LUNs across all paths is very tedious. The easiest way that I have to do it is to set the path while you SSH to the ESX server.
This command will set the path:
esxcfg-mpath --preferred --lun=vmhba2:0:1 --path=vmhba3:0:3
To find out what paths are available:
esxcfg-mpath -l
To see your LUNs:
esxcfg-vmhbadevs
I have attached a doc that I used for one of my clusters. Once you create a file like this, save it as a .sh and then run it on all of your ESX servers in the cluster.
Make sure you rescan the HBAs after:
esxcfg-rescan vmhba2
Duane |
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Niels Vejrup Pedersen
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Jun 24, 2009 12:35:48 GMT
N/A: Question Author
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Update:
I spoke to some EVA guys at technology forum in vegas, and to my knowledge there is a psp plugin in the beta stages for the EVA's.
I'm looking forward to that!
Regards, |
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Patrick Terlisten
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Jun 24, 2009 16:54:10 GMT
Unassigned
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Hello,
mmmhh... that would be nice.
Best regards,
Patrick |
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Uwe Zessin
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Jun 24, 2009 17:33:57 GMT
Unassigned
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What (real) advantages does PowerPath/VE give over the native out-of-the-box capabilities? |
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Patrick Terlisten
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Jun 24, 2009 21:25:59 GMT
Unassigned
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Hello,
I think most of the users want an automatic load balancing over all available paths. Now they must load balance it manual.
And btw: VMware is an EMC division... THATS the main cause why powerpath is supported.
Best regards,
Patrick |
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Uwe Zessin
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Jun 25, 2009 04:55:57 GMT
Unassigned
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I've been in a presentation yesterday and the speaker just turned on round-robin through the VI-Client. ESX4 had already recognized the EVA as an ALUA array. We ran out of time, but he assured us that ESX4 would switch to and balance on the "performance optiomized" paths for a virtual disks within a few minutes.
Of course, EMC was mentioned that the recomendation from them to switch of PP/VE when the smallest sign of a problem was visible. |
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Patrick Terlisten
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Jun 25, 2009 05:46:34 GMT
Unassigned
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Hello,
Round-Robin?! It was always included in VI3, but marked as "experimental". In this case RR is maybe an option.
Best regards,
Patrick |
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Uwe Zessin
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Jun 25, 2009 05:51:47 GMT
Unassigned
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What do you mean by "maybe"?
Do you want RR across non-optimized paths, too?
I have not mentioned above, but it is clear that you now should distribute your virtual disks across the controllers from CV-EVA and all ESX4 servers will honor it - no more unexpected ownership transfers due to a wrong settings on one server. |
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DDas
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Jul 9, 2009 19:19:16 GMT
Unassigned
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PowerPath/VE supports the EVA 8000 series as well as the active/active EVA 3000/5000. |
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Davy Oriem
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Nov 6, 2009 15:19:47 GMT
Unassigned
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Is there now any plugin coming for the EVA from HP? When will HP publish best practices for Vsphere, as they did for esx 3.5 |
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mujzeptu
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Nov 6, 2009 21:31:25 GMT
Unassigned
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