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Can ScaleIO use datastore what installed itself ?
Hello. Thank for your attention.
I'm using ESXi 5.5. And I'll install ScaleIO on local datastore.
In this case, Can ScaleIO use datastore what installed itself ?
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ESXi
∟datastore1 ←install ScaleIO
∟datastore2
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In other words, Can SDS use both datastore1 and datastore2 as storage pool ?
Best regards,
RHasleton1
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February 15th, 2017 07:00
Hi Hiroki,
When used with ESX, ScaleIO can indeed use a local datastore. Here are the notes on this from the 2.0.1.x Deploy Guide:
VMDK
A new datastore is created, with a VMDK, and the VMDK is added to the SVM.
ScaleIO requires thick provisioning, so this process can take a long time.
In almost all cases, RDM is the preferred method to add physical devices. Use
the VMDK method only in the following scenarios:
– The physical device does not support RDM.
– The device already has a datastore, and the device isn’t being completely
used. The excess area that is not already being used will be added as a ScaleIO device.
One note of caution here. If you use the local datastore as an SDS device on which the SVM resides, the SVM will be competing for disk resources while also trying to serve the needs of the cluster. This is definitely not recommended and should only be done in a test environment, as there will be performance and stability considerations with that setup.
Hope that helps,
RIck
Hiroki_F
3 Posts
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February 15th, 2017 22:00
Hi Rick,
Thank you for your reply.
I understood SVM can use datastore.
If both VMDK datastore and RDM datastore add to same SVM , is it possible ScaleIO work normally?
Could you tell me how abouth do you think?
Best regards,
RHasleton1
73 Posts
0
February 16th, 2017 06:00
It is best practice to use RDMs. The only reason to use VMDKs is for the above stated reasons:
– The physical device does not support RDM.
– The device already has a datastore, and the device isn’t being completely
That said, it will work to have mixed RDM and VMDKs. It is not recommended and not best practice, but it will work.
Hiroki_F
3 Posts
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February 16th, 2017 15:00
Hi, Rick.
Thank you for your opinion.
I'll try to construct ScaleIO in test environment.
Best regards,