VAAI for iSCSI, VAAI for NAS
Storage for Microsoft Hyper-V
The QNAP NAS, VAAI iSCSI and VAAI NAS are VMware certified.
Businesses can either select iSCSI or NFS as a centralized
storage to boost performance. VAAI for iSCSI supports Full Copy
(hardware-assisted copy), Block Zeroing (hardware-assisted
zeroing), Hardware-assisted Locking, and Thin Provisioning with
space reclaim. VAAI for NAS supports Full File Clone, Extended
Statistics, and Reserve Space. The QNAP NAS uniquely supports
VAAI iSCSI and VAAI NAS to enhance storage performance in a
virtualized environment.
With ODX support, the QNAP Turbo NAS becomes a high
performance iSCSI storage solution under Windows Server 2012,
including Hyper-V virtualized environment. QNAP storage enables
full copies of virtual machines within the NAS without requiring the
Windows hosts to read and write the data. This highly reduces the
loading of Windows hosts and improves the performance of copy
and move operations for Windows 2012 hosts using the QNAP
iSCSI storage. When providing QNAP storage to a Windows 2012
file server, the end user using Windows 8 client workstation will also
benefit from the Offloaded copy process for large file transfers.
Deployment time for a 80 GB Thick Provision
Eager Zeroed virtual disk (lower is better)
Relative time (seconds)
750
600
124
times faster!!
450
300
150
6
0
VAAI: block zeroing
1,764
2,100
Relative time (seconds)
900
746
Relative time for cloning
a 80 GB VM (lower is better)
1,750
4.7
1,050
374
700
350
With ODX
3 Token
times faster!!
1,400
VAAI OFF
VAAI ON
QNAP Turbo NAS:
Boosted Performance by ODX
1
2
4
6
Offload
Read
Token
Offload
Write with
Token
Results
5 Data
0
VAAI: full copy
Virtual disk 1
Virtual disk 2
QNAP Turbo NAS
Performance drop
Other NAS
Without ODX
3 Data
Very small
performance impact!!
1
Read
VAAI: Hardware-assisted Locking
Windows Host 2
Windows Host 1
2
4
5
Data
Write
Data
Results
Virtual disk 1
Other NAS
Virtual disk 2
vSphere plug-in
NAS management via SCVMM
The vSphere plug-in allows users to manage the QNAP Turbo NAS
directly on the vSphere client, making datastore management more
effective.
The QNAP SMI-S provider enables management of the QNAP
Turbo NAS directly through Microsoft System Center Virtual
Machine Manager 2012 (SCVMM).
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