storage, backup & recovery considerations in hyper-v christopher kusek @cxi global...
TRANSCRIPT
![Page 1: Storage, Backup & Recovery Considerations in Hyper-V Christopher Kusek @cxi Global Virtualization Lead EMC Consulting Blog:](https://reader035.vdocuments.us/reader035/viewer/2022062417/5517a5fb55034645368b5c69/html5/thumbnails/1.jpg)
Storage, Backup & Recovery Considerations in Hyper-VChristopher Kusek @cxiGlobal Virtualization LeadEMC ConsultingBlog: http://pkguild.com
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Housekeeping
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Storage is Easy
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Storage is Easy for Hyper-V
• Hyper-V hosts support a wealth of storage options– Root Partition for Hyper-V– Fixed Disk VHDs– Dynamic Disk VHDs– Cluster Storage Volume (CSV) [Multi-
VHDs]– Pass-through Disk (Raw Disk)
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Storage Types in Hyper-V
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Storage in Hyper-V Clusters
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Storage Options in Hyper-V
• Support for VHDs up to 2TB*– Server8 support 2TB to 16TB
• Multiple disk types supported per guest
• Pass-through and iSCSI disks for guests
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Your Hyper-V host is the sum total of your guests
so plan accordingly
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Storage Considerations
• Lay out storage for your application(s)
• Not all disk types are created equal• Design for your I/O Profile not
capacity• Snapshots will cause extra I/O• Diff disks will be in use until VM
shutdown• Pass-through disks do not support
snaps
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Backups are not easy
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Backups are not easy
• Hyper-V Host requires a backup• Virtual Machines require backup• Applications in VMs require backup• Files inside of VMs require backup• SYSTEM State Requires backup
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Choose your granularity
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Where do I backup from?
• Backup virtual machines like traditional servers
• Backup the virtual host configuration itself• Backup the virtual machines from the host• Backup the virtual machines from the
storage• Backup the files in spite of the virtual
machines
Please sir, can I have some more options?
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Backup Options
• Pick a backup solution which meets your needs– Image backup– File backup– One-off Hyper-V only backup– Enterprise Solution (Networker, NBU,
TSM)
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Recovery is ever harder
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How do I restore?
• Restore VHD and recover files• Restore files direct• *Other Complex Recovery Options*• End-User Recovery• Backup Admin Recovery
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Data Mitigation
• Live Migration helps in planned disasters
• Snaps can support quicker restores
LM/Snaps are not backups*
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Data Backup Concerns
• LM/Snaps do not protect corrupt VHDs
• Pass-through disks cannot be snapped
• iSCSI Direct LUNs cannot be snapped• VSS Diff for snaps up to 15% of total
VHD
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General Best Practices
• Design for Applications• Less disks less complex• More data more backup• Live Migration & Snaps are NOT Backups• Understand Granularity• Avoid point solutions*
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Thank you!
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Credits
• Christopher Kusek, vExpert, CISSP, MCT
• EMC Consulting• Global Virtualization Lead
• Twitter: @cxi• Blog: http://pkguild.com