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Making Lun Decisions - Dell PowerVault MD3000i User Manual

Dell md storage array vcenter plug-in user’s guide.
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Figure 19. Create Disk Group

Making LUN Decisions

Plan your storage set up for your ESX/ESXi systems before you format LUNs
with VMFS datastores.
When you make your LUN decision, remember the following points:
Each LUN should have the correct RAID level and storage characteristic
for applications in virtual machines that use it.
One LUN must contain only one VMFS datastore.
If multiple virtual machines access the same VMFS, use disk shares to
prioritize virtual machines.
You might want fewer, larger LUNs for the following reasons:
More flexibility to create virtual machines without asking the storage
administrator for more space.
More flexibility for resizing virtual disks, doing snapshots, and so on.
Fewer VMFS datastores to manage.
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Dell MD Storage Array vCenter Plug-in

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