![]() ![]() Take a large enough sample at typical times, and you can get a very good idea on how much any specific EBS volume is changing. To do that you can install software that monitors your disk changes and reports them to you. Something we can work with, maybe… A more accurate methodįor more accurate AWS EBS pricing, you need a more accurate method of knowing how much your EBS volumes are changing. If we assume compression is effective, it will be half: 76$onth. The cloud cost of storing 1GB of EBS snapshot data is $0.095/month (Virginia region, February 2013). You can decide not to factor compression into your calculation or give it mostly a 2:1 ratio. compressed file system, media files), it will not be compressed at all. On the other side, if data on the volume is already compressed (e.g. If compression is zip-like and data on the EBS volume consists mostly of text files and can be compressed very well. It is hard to estimate how much data will be reduced by compression. AWS compresses the snapshots when they are stored in S3. Add them together and we reach about 1.6TB of total snapshot storage. For the incremental snapshots, we can multiply 30 (days) by 30GB (3% of 1TB) and we reach 900GB. So, the first full will be taking 700GB (70% of 1TB). We take snapshots and keep them for 30 days. Assuming a 1TB EBS volume, that is 70% full at first. One way would be to guesstimate, we can use a simple thumb rule that is often used in- backup planning: A typical data volume of a production server changes about 3% a day. In order to estimate how large your EBS snapshots will be, you need to know how much your volumes are changing. I will show how to do a rough estimation or even perform an accurate cost analysis using monitoring tools for EBS pricing. In this part, I will show how it is possible to calculate EBS snapshot costs. In part one, I described the EBS snapshot mechanism. ![]()
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