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. My Friend, and talented director RikertD, debuts his latest movie and second Hallmark movie, Christmas at Gracelan… /i/web/status/1… 4 years agoĬultofanarchy.I wanted to talk about disk space efficiencies of ReFS/XFS backup repositories. Microsoft Treehouse /p/BvP6mCZArhp9… 3 years ago 1 year agoĪctive Directory Scripting Highlight: Test Basic Network Connectivity with PowerShell /1/act… 3 years agoīest part of MVP week. How to resolve Hyper-V Cluster Persistent Reservation issue /hyper-v-cluste… Always good to see you are not alone. Veeam, Altaro) to continue to gain customers. If not, look for 3rd party Hyper-V backup vendors that already include a deduplication (i.e. Lets hope the deduplication feature in Windows Server 8 has some significant effect on storage space requirements in DPM 2012.
That number gets a little expensive and is the reason why I do not use DPM disk based backups. In my environment I have over 20TB of VMs this would equate to 40TB+ of data for DPM disk based backups. 1TB is not that large these days, but the percentage of additional disk space over the source data is greater than 100%. If you look at the screenshot below from the DPM 2010 calculator for Hyper-V you will see that for the 3 host example there is 465GB of VMs.Īs you scan down however you see that in order to keep a 7 day retention (15% churn noted on another tab) on these VMs you will need a little greater than 1TB to back it up. The newest versions of the Storage Calculators for DPM 2010 were republished and they confirm what has plagued me for years when trying to backup Hyper-V VMs to disk.
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