© The Association of Independent Schools of NSW Virtual Virtualisation Got no money? Fear not! There is a way…

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Presentation transcript:

© The Association of Independent Schools of NSW Virtual Virtualisation Got no money? Fear not! There is a way…

© The Association of Independent Schools of NSW Why would you bother Scenario – Server down  No DNS/DHCP  Problems with login  No LDAP  No access to files from outside  No administration/imaging software  No printing - ouch!

© The Association of Independent Schools of NSW Disaster recovery - Services Replacing a corrupt server 11 22 VM1VM1 VM2VM2 VM3VM3 VM4VM4 Host OS Virtualisation Software Backup of VMs on external HDD

© The Association of Independent Schools of NSW Disaster Recovery - Data Restoring access to data volumes 11 22 VM1VM1 VM2VM2 VM3VM3 VM4VM4 Host OS Virtualisation Software V1 V4 V2 V3 Fibre switch Virtualised Server SAN Copy server and connect to data volume

© The Association of Independent Schools of NSW

Disaster Recovery – The Lot  Source hardware  Download Linux from Internet or buy DVDs  Restore servers from external HDD  Copy data from backup server  Away we go!

© The Association of Independent Schools of NSW How can it be done? Hardware with VT technology and plenty of RAM Scenario 1 - VMware  Mainstream Linux or Windows  VMware free server  Scenario 2 - XEN  SUSE Linux OES2 with Xen Linux or Windows  VMware VM1VM2VM3VM4 Linux with XEN VM1VM2VM3VM4

© The Association of Independent Schools of NSW Installation of VMs  Install your host OS (Domain 0)  Install VMware server for Linux or Windows or use XEN Virtual Machine Manager  Create virtual machine (specify RAM and HDD allocation)  Install OS on VM  Install apps  Clone your VM as many times as you like

© The Association of Independent Schools of NSW How to do it

© The Association of Independent Schools of NSW

11 22 VM1VM1 VM2VM2 VM3VM3 VM4VM4 Host OS Virtualisation Software 11 22 VM5VM5 VM6VM6 VM7VM7 VM8VM8 Host OS Virtualisation Software Server 1Server 2 Redundant virtualised server

© The Association of Independent Schools of NSW 22 VM1VM1 VM2VM2 VM3VM3 VM4VM4 Host OS Virtualisation Software 11 22 VM5VM5 VM6VM6 VM7VM7 VM8VM8 Host OS Virtualisation Software Server 1Server 2 Hardware failure

© The Association of Independent Schools of NSW 11 22 VM1VM1 VM2VM2 VM3VM3 VM4VM4 Host OS Virtualisation Software V1 Guest OS V4 Data V2 Data V3 Data Fibre switch Virtualised server with SAN Guest OS on SAN

© The Association of Independent Schools of NSW Guest OS on Virtual Machine 11 22 V M 1 OS V M 2 OS V M 3 OS V M 4 OS Host OS Virtualisation Software V1 Data V4 Data V2 Data V3 Data Fibre switch

© The Association of Independent Schools of NSW Why else would you do it  Install app on real server hardware after trial  Refresh hardware  Legacy software  Clone servers  Get a new server for the price of more RAM!

© The Association of Independent Schools of NSW Renate McKenzie Director of ICT Roseville College Contact Details