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zen shaw

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Strategy to backup a Virtualized Infrastructure

Hi,
In a virtualized world the following things needs to be backed up:
Files / Folders
Applications / Application Objects
Operating Systesm
Virtual Machines
Virtual Hosts
Virtual Clusters
.... add anything else

then are we safe just by backing up VMs or we should continue to backup the traditional way (file / database backup) in order to achieve full recover-ability (Veeam v8 allows file level recovery).

For Example: If a machine is running SQL Server, taking a full VM backup and restoring will restore my SQL Server data as well. Assuming that daily backup is acceptable, is there a need of traditional SQL Server backup using SQL Server Agent?  How confident can one be about the SQL server database, when restoring the VM ... is there an integrity check at VM level backup?

Please throw light on backup strategies for backing of infrastructure running VMs hosting databases / web servers / AD / Exchange

Thanks
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
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File and Folder backup, is old thinking, and designed for physical machines, in a virtual environment, it's quicker and more efficient to backup the entire VMs, which you can also use change block tracking to backup the VMs.

If you use an Application Aware Backup Application such as Veeam Backup and Replication, you have Change Block Tracking, and also application aware backups for AD, Exchange and SQL.

We tend to find, VMs are backed up for DR, and SQL Administrators also like to perform SQL backups seperately, which they backup more than once a day, which gives them flexibility, of being able to restore a VM, and then apply the latest SQL backup/restore.
Avatar of zen shaw
zen shaw

ASKER

Is it because they are using Application Aware Backup? Does it assure integrity of database as well?

While the full / increment backup is being done, does the VM stop any new connections / transactions?
Is it because they are using Application Aware Backup? Does it assure integrity of database as well?

Correct.

While the full / increment backup is being done, does the VM stop any new connections / transactions?

No.
How complex is the infrastructure?

For simple setups we would deploy StorageCraft ShadowProtect in-VM to a variety of backup destinations.

For more complex and clustered setups we run SP in-VM or we look to Veeam to back up complex and clustered environments.

It all depends.

Our Disaster Recovery Planning includes:
 + Regular bare metal/hypervisor restores of backup sets
 + Instant On via ImageManager on ShadowProtect or Veeam (backup converted to live VM)
 + Spot recovery and/or granular recovery for everything (Exchange, SQL, SharePoint, Files, Folders, ETC)
I have a pretty simple infrastructure ... One VMware HA cluster with two HP server, two storage boxes, two firewalls all connected through VLAN via two Cisco switches.

I understood VM backups but how would I take Hypervisor backup using Veeam?  

@Philip ... the in-vm is again agent based backup ... is it not against the spirit of agent less virtualisation backups?
Which Hypervisor are you using ?

Veeam only backs up the VMs.
VMware ESXi 5
I installed the ESXi on a SD card but since it was a single point of failure, I changed that to run ESXi on a RAID 1 Directly Attached Storage ... so now my hosts boot from these RAID 1 Disks ....

Do I need to backup the Host / or its Config ... or it doesn't matter as in an even of complete disaster ... I can install new Host with new ESXi on it and restore the VMs?
ASKER CERTIFIED SOLUTION
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
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Thanks Andrew.

I always used SD until I was dwarfed by a Senior Consultant who suggested the RAID 1 (same guy who said VMs from Intel will not work on AMD hardware). At times I have to keep quiet :)

What details are stored in the Host Config? ... your article seems to backup current / default configuration, is there no need to backup regularly especially if new VMs are being created?
1. It depends how often you change the configuration of the HOST (not adding VMs!).

2. it depends on how tight and good your documentation is of the HOSTS.

e.g. vSwitch, virtual machine port groups, advanced configuration settings etc

you just need to backup the configuration files, these can be restore to a vanilla, virgin fresh installation of ESXi.

same guy who said VMs from Intel will not work on AMD hardware

Senior Consultant - well we all know he's wrong!
I'm not sure about the "spirit of agentless backup" comment?

Veeam is an excellent backup solution. In an HA environment it very well can be the best direction to take. Since the dollars were already invested in HA then the same thought should go into the backup solution.

We've been backing up VMs on Hyper-V for a long time now using a guest-only methodology. We don't work with VMware so Andrew and others will have a lot more to say on that subject.
Hi,
I have used Veeam as a test trial and I guess I'll go with Veeam.

Thank you to both Philip and Andrew for their advice.

Regards,
Zen