However, this is only a part of the benefits! Remember we're talking about raw storage, meaning you also get blistering-fast restores from ANY restore point due to no overheard of inline data re-hydration processes associated with the dedupe engine. In other words, this customer is getting close to 13x data reduction ratio from a repository running on a cheap general purpose server. Based on the data we can see from the screenshots, we can easily calculate space savings delivered by our fast clone technology in this case:ĭata reduction ratio from fast cloning: 6.4Įffective data reduction ratio factoring in average 2x compression ratio by Veeam : 12.8 (remember, dedupe appliance require the ingestion of raw data and calculate their data reduction ratio off of it). Let's take this example, whose 1 year long retention policy includes 12 monthly backups. However, even for scenarios when you do need GFS full backups for the long-term retention, I would always recommend taking a closer look at ReFS/XFS repositories first and foremost, prior to investing into a deduplicating storage appliance. In other words, you won't get much space savings with dedupe appliances receiving forever-incremental Veeam backup jobs with compression enabled. These vendors market 20x or even higher data reduction ratios, and will usually deliver on this promise with a couple of gotchas: their data reduction numbers do assume that the incoming data is uncompressed, unencrypted and includes a large number of periodic full backups. The perception here is that for long-term retention scenarios, it is essential to acquire a deduplicating storage appliance. Nevertheless, where space-less fulls really change the game is GFS backups. But even if you don't need GFS backups, there may still be the need for periodic synthetic fulls, for example to 'seal' the previous full backup chain in order to make it eligible for offload to object storage. This quite literally means that GFS backups are 'free' to create, because they take no physical disk space. The fast cloning technology we at Veeam are able to use with ReFS/XFS volumes comes with many benefits, but the biggest one is what we call ' space-less' synthetic full backups.

I felt there was the need to raise more awareness here, because I often find myself recommending them as the solution to various customers' challenges, and in most cases this feature comes as a surprise. I wanted to talk about disk space efficiencies of ReFS/XFS backup repositories.

Veeam backup retention calculator