make your storage work for you: vaai and odx offload up to 30% of disk operations to the san
TRANSCRIPT
Webinar:
Make Your Storage Work For You
VAAI and ODX offload up to 30% of disk
operations to the SAN
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About Aidan Finn
• @joe_elway
• Hyper-V MVP
• Technical Sales Lead with MicroWarehouse (http://www.mwh.ie)
• Irish technology distributor
• Learning, evangelizing & teaching Microsoft infrastructure to Microsoft partners
• Background in Windows Server & desktop management, virtualisation, Azure
IaaS, and IT infrastructure
• Blogging & writing:
• http://www.aidanfinn.com
• http://www.petri.com/author/aidan-finn
• Published author/contributor of several books
PRESENTATION
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About Max Kolomyeytsev
• StarWind Virtual SAN Product Manager
• 8+ years of QA and technical support
@ StarWind
• 10+ of professional IT experience
• Host of the StarWind Webinar series
PRESENTATION
ODX and the Microsoft Cloud
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Desires
• Data is growing and so are hard disk sizes
• How IT is deployed is/has changed for many organizations
• Administrators need to react more quickly to business needs
• Enable faster self-service deployment of virtual machines
PRESENTATION
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Slow Storage Operations: Example 2
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1 Gbps iSCSI
Hyper-V Host
Storage
SCVMM Library
Virtual machinetemplate andvirtual hard disk
New virtual machine
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Offloaded Data Transfer (ODX)
• A hardware offload introduced in Windows Server 2012
• Offloads slow operations and transfers from servers/hosts to the SAN
• Results in much faster operations and happier customers
• Hyper-V uses ODX for disk operations
• ODX support added in System Center 2012 R2
PRESENTATION
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How ODX Works
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Benefits of ODX for Hyper-V
• Much faster disk operations, such as:• Creating fixed-size virtual hard disks
• Extending fixed-size virtual hard disks
• Live Storage Migration
• Merging checkpoints (formerly AKA Hyper-V snapshots)
• Clouds
• Creating virtual machines from a library
• Faster self-service provisioning of services
PRESENTATION
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Fast Storage Operations: Example 1
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1 Gbps iSCSIHyper-V Host
Storage
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
0000000000000000
Create newor extend FIXEDvirtual hard disk
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Slow Storage Operations: Example 2
PRESENTATION
1 Gbps iSCSI
Hyper-V Host
Storage
SCVMM Library
Virtual machinetemplate andvirtual hard disk
New virtual machine
SCVMM 2012 R2Fast File Copy
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ODX Hardware Requirements
• A SAN that supports ODX:
• iSCSI
• Fibre channel
• Fibre channel over Ethernet (FCoE)
• SAS
• Always good practice to upgrade firmware and drivers throughout
the entire storage stack
• Check with SAN vendor
• From HBAs to disks
PRESENTATION
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ODX Software Requirements
• Windows Server 2012, Windows 8, or later
• System Center 2012 R2 (for Fast File Copy VM deployment)
• Opted-in filter drivers (anti-virus, encryption, etc)
• The affected volumes:
• Unencrypted basic (not dynamic) partition
• NTFS
• Disable Data Deduplication and BitLocker on the volumes
• No Storage Spaces
• Files:
• 256 KB or larger
• Preferably not highly fragmented
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Interesting Designs
• Virtual machine Guest OS can support ODX:
• Guest OS iSCSI initiator is connected to LUN on ODX-capable SAN
• Virtual machine is connected to LUN on ODX-capable SAN via virtual
fibre channel
• Hyper-V can use ODX over SMB 3.0
• File server or SOFS is connected to ODX capable SAN
• Inter-SAN data transfers
• Copy data between LUNs in different SANs using ODX
• Requires storage controller support for inter-SAN ODX transfers
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Caution!
• Not all SANs offer the same level of support for ODX
• ODX might be “supported” but unstable
• Disable ODX:
Set-ItemProperty
hklm:\system\currentcontrolset\control\filesystem -Name
"FilterSupportedFeaturesMode" -Value 1
• Some models of SAN offer great performance gains from ODX
• Some barely show any benefit at all
PRESENTATION
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Just 2 VMware servers to enableFault Tolerance on the entire system.
Really.
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