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5. Functions <VAAI Support (2)>
n
Full Copy
n
Block Zeroing
Block zeroing is used in various scenarios. (For example, fill free disk space with zeros in order
to make virtual disk file optimal size.
2. VAAI Enabled
1. VAAI Disabled
VMware ESX
LINUX
Windows
Web
VM1
VM2
Windows
Web
VM3
Server writes zeros
VMware ESX
LINUX
Windows
Web
VM1
VM2
Windows
Web
VM3
Server offloads the block zeroing to the
storage.
Windows
Web
VM1
VM1 data
VM1.vmdk
Windows
Web
VM2
VM2 data
VM2.vmdk
Windows
Web
VM3
VM3 data
VM3.vmdk
Windows
Web
VM1
VM1 data
VM1.vmdk
Windows
Web
VM2
VM2 data
VM2.vmdk
Windows
Web
VM3
VM3 data
VM3.vmdk
Storage fills zeros in the area.
1. Copy Virtual Machine (VAAI disabled)
VMware ESX
LINUX
Windows
Web
VM1
VM2
Windows
Web
VM3
Server performs the copy
by reading and writing data
to the storage.
Server resources are used
to perform the copy.
Vmware ESX
LINUX
Windows
Web
VM1
VM2
Windows
Web
VM3
2. Copy Virtual Machine (VAAI enabled)
Windows
Web
VM3
Copy of
VM data
cpVM2.vmdk
Windows
Web
VM2
VM2 data
VM2.vmdk
Windows
Web
VM2
VM data
VM2.vmdk
Windows
Web
VM3
Copy of
VM data
cpVM2.vmdk
Server offloads the copy to the
storage. Copy is done within the
storage, which frees up resources
on the server.
68
NEC Confidential
Содержание M310
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