2012 10-sep-gwava-backup-virt-environment
DESCRIPTION
SEP Presentation GWAVACon 2012TRANSCRIPT
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.
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
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
5
Backup - fundamentals
System
Database
Data / File
Critical
Systemstate Registry HAL(Hardware
Abstraction Layer) Partition information
Bootloader ...
6
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!!
7
Backup in a Virtual
Environment
System
Database
Data / File
Critical
Hypervisor
8
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
9
Backup - Strategies
in Virtual Environments • Differentiate
– dynamic Data – like Database and Files– unchanged files – like Application binaries – Systeminformation
• Don't forget the Host itself
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!!
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
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.
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 !!!
