BTW, some interesting thoughts about the cost of cloud backup if you have terabytes of data....
http://www.theregister.co.uk/2012/11/15/cloud_storage_costs/
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Wait, what does it cost to back up 1TB every month?
I have clients that have backup requirements of 1TB per month. These are small businesses; approximately 15 people per biz, but they generate this kind of data without a problem. According to Amazon's S3 calculator, Amazon does not let you make 1TB volumes. We will thus break up our monthly data into 500GB volumes for simplicity. The cost of storing 1TB of data on Amazon's S3 cloud is $97 per month.
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A terabyte is sod all. What about moving 15TB a month?
I also have one customer cheerfully ploughing through approximately 15TB per month of backups. Now, 31 Amazon EC2 volumes at 500 gigabytes each transferring in 15TB of data costs $1547/month. Assuming I take the $900/month fee the ISP charges just to light the fibre up out of the equation, we pay $2,800/month for a sustained 50Mbps connection, no metering. Assuming 30 days in a month, this has a theoretical capacity of approximately 15.45TB a month. This lines up with what I see in the real world; we flatten it all month long and just get the backups done. This makes the monthly cost of the solution $4,374.
The 4TB 7200 RPM Hitachi Deskstar sells for $329 at my local computer retailer. Five of these drives (for RAID 5) is $1,645; a Synology DS1512+ costs $899. A 10x10 storage unit is $233/month, and the delivery guy costs me $33 per run. So for me to back up 15TB off-site each month is $2,800 per month.
Any time we wanted to do a recovery of that data, Amazon would charge us $1,689.51. I would also have to up the bandwidth allocation for that month by another 50Mbps, meaning an additional $2,800. This makes the cost of recovery $4,489.51, and it would take a month to pull down the data. Even if I wanted to, I can't make it go faster; the fibre pipe the ISP can provision me only goes to 100Mbps.
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Extremely informative and thought provoking article. The comments on The Register are also always a good read, especially the British humour.
Samsung Galaxy Note II LYN's Official Thread V8, 3 million sold already!!
Nov 16 2012, 02:08 AM
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