Rackspace Backup Snapshot

Snapshots

It's not a good solution for backup because there are some limitations described here http://www.rackspace.com/knowledge_center/article/rackspace-cloud-essentials-4-cloud-server-snapshot-limitations for me the most important is this On a first-generation Linux Cloud Server current volume size cannot be more than 250GB and current inode usage should not be more than 3 million , and it's not depend from the data but from the dimension of the disk.

Backup

It's very useful understand this difference http://www.rackspace.com/knowledge_center/article/rackspace-cloud-backup-vs-cloud-server-image-backups
for backup

With the image snapshot there are many problem because every data is copied every time. Instead with cloud backup only the delta is copied and it's possible restore part of the data not all the server.

There are two kind of backup:

  • Rackspace Cloud Backup: based on files
  • Cloud Server Image Backup: focus on the image of the virtual machine. It is the snapshot mechanism show upstairs.

In the performance server, the data disk is separated from the system disk. With the Cloud Server Image only the system disk is copied.

A good page is the faq page with a lot of useful information here http://www.rackspace.com/knowledge_center/product-faq/cloud-backup

Rackspace Cloud Backup RCBU - Overview

source http://www.rackspace.com/knowledge_center/article/rackspace-cloud-backup-overview

sudo sh -c 'wget -q "http://agentrepo.drivesrvr.com/debian/agentrepo.key" -O- | apt-key add -'
sudo sh -c 'echo "deb [arch=amd64] http://agentrepo.drivesrvr.com/debian/ serveragent main" > /etc/apt/sources.list.d/driveclient.list'
sudo apt-get update; sudo apt-get install driveclient
sudo /usr/local/bin/driveclient --configure
sudo service driveclient start
sudo update-rc.d driveclient defaults

there are some other useful information to understand better the backup, they are all enough intuitive there is a good web interface. In brief you can receive mail for the good and fail backup , you can encrypt the data and there is the deduplication.

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