2012 10-sep-gwava-backup-virt-environment
description
Transcript of 2012 10-sep-gwava-backup-virt-environment
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The Company
German vendor of Backup and Disaster Recovery Software.
Headquarter in Weyarn, near Munich.German development – german support!
Subsidaries in Germany and USA
World Wide Sales via Partners> 3500 Customers in > 45 countries
Hoppenstedt Top Financial Rating – only 3,3% of all German companies got a a No. 1 rating.
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The History
Development oflogistics SW
Develop Backup and data protection Software – VMS (92)
Spin off logistic SW - SEP Logistik AG
Development sesam2000 Backup for NT/Unix/Linux
Define Linux Strategy
EstablishSEP AG
established, Systemintegration
HW development
19901980 2000
Logisticsoftware Relag
Dataprotection and logistics
patented processes
SEP sesam 2000Software only
International expansion 2008
2008
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SEP sesam Backup for all
Database – hot backup extensions
Operating System / Filesystem
OS/2 VMSFreeBSD
Virtualis ation
Bare M
achineR
ecove ry
Update / T
raini ng / Su pport
Applications backup
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Backup - fundamentals
System
Database
Data / File
Critical
Systemstate Registry HAL(Hardware
Abstraction Layer) Partition information
Bootloader ...
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Restore – fundamentals :-)
SystemCritical
Data / File
Database
Systemstate Registry HAL(Hardware
Abstraction Layer) Partition information
Bootloader ...
All Backup is only done for the ability to proceed a fast and consistent restore!!
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Backup in a Virtual
Environment
System
Database
Data / File
Critical
Hypervisor
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Backup in a virtual
environment – with API
Hypervisor (Citrix Xen, VMware, Hyper V)
Guest1 ... GuestN
Ba
ckup A
PI
Database
Binaries / File
Hot Backup via Backup Agent
Snapshot via Backup API
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Backup - Strategies
in Virtual Environments • Differentiate
– dynamic Data – like Database and Files– unchanged files – like Application binaries – Systeminformation
• Don't forget the Host itself
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Backup - Strategies
in Virtual Environments Snapshot backup
• Image copy of the whole virtual Disk– open Database --> corrupt
– open Files → ??
– restore only of the whole image – single file restore not possible
• Applicable for System backup
• Applicable for fixed data like– Infrastructure and Application server
– DHCP, DNS, Print – but not always for a file server!!
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Backup - Strategies
in Virtual EnvironmentsSnapshot backup - the next• Recommendation
– Define a dedicated virtual disk for each snapshot area==> 2 LVM partitions per guest
• System and Data
• Differentiate VMware, Citrix XenServer, HyperV and the rest
provides VCB / VADP Interface Snapshot stops the guest
provides VSS Interface provides Citrix XenServer API
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Different Hypervisors• VMware
– VCB (old) / VADP Interface
– Vcenter always required
– Uniterrupted Snapshot possible
Consistence of system information and data
Incremental backup, single file restore
Windows Guest Backup via integrated VSS→ Consistent VSS Backup of MS SQL / MS Exchange→ Restore the complete Snapshot – no single DB or Mail
• Hyper V– Backup API available (VSS)
Uniterrupted Snapshot possible - only complete Snapshot – no single file restore; No incremental backup
Windows Guest Backup via VSS→ Consistent VSS Backup of MS SQL / MS Exchange→ Restore the complete Snapshot – no single DB or Mail
Citrix XenServer– Backup API available
Windows Guest Backup via VSS→ Consistent VSS Backup of MS SQL / MS Exchange→ Restore the complete Snapshot – no single DB or Mail
– Uniterrupted Snapshot possible - only complete Snapshot – no single file restore
– No incremental backup
Xen Source / KVM
– Use a Script to generate a Snapshot via Linux LVM – stops the guest – see SEP wiki.
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Requirements summary• Applicable for different Hypervisors• Backup for all Operatingsystems – virtual and real• Online Modules for Database Backup• Don't forget the real world – use the same backup system for
virtual and physical Servers• ==> SEP
we can !!!