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13.04.2017 · Veeam spokespeople have recommended that users use a 64K block size as the primary method to avoid this issue. Check the current allocation unit size of ReFS volumes using: fsutil fsinfo refsinfo <volume pathname>. Microsoft has also released a patch (KB4013429) as well as a corresponding knowledge base article regarding this issue.

After compression, each block backed up by Veeam will have somewhere between 0-4K of overhead when stored on ReFS with 4K clusters, and ...

16.05.2010 · Re: 2016 ReFS and file allocation size. This is true if compression is turned off. If it's on, the original block is 1MB, but it then becomes anything between 1MB (uncompressable block) and any lower value. Say I have after compression a file that is 644k, this consumes 10 * 64k blocks plus a 4k space.

ReFS 3.1 in fact supports two different cluster sizes: 4KB and 64KB. Too long, don't read: go for 64KB whenever you want to use ReFS as a Veeam ...

They can also store configuration backups of remote Veeam Backup servers. ... Note: Starting from Veeam Backup & Replication v9, the new block size for ...

While Microsoft currently recommends formatting ReFS volumes with the default 4k clusters, Veeam on the other hand, recommends using 64K cluster ...

So far this issue has been primarily reported by users who have formatted their ReFS volumes using a 4K block size, which is set by default ...

We recommend formatting the volume with 64 KB cluster size. Proceed anyway? Solution. Without going into what ReFS is, think of it as the new NTFS. So that's ...

Veeam with ReFS - block size? I'm in the process of installing a "new" Windows 2019 build on an R730XD. 12 x E5-2603 v3 cores and 32GB RAM. I'm hoping to have a dedicated volume for Veeam backups and would like to use smartclone to make our full backups quicker etc. I've looked at the documentation and it says to use 64KB block size for the ...

21.11.2020 · The Veeam block size (after compression) of 512KB is going to be written in the underlying filesytem, which has a block size of 64k. It means that one block will consume 8 blocks at the filesytem level, but no block will be wasted, as the two are aligned. If possible, set the block size at the filesytem layer as close as possible to the ...

24.01.2017 · ReFS 3.1 in fact supports two different cluster sizes: 4KB and 64KB. Too long, don’t read: go for 64KB whenever you want to use ReFS as a Veeam repository. If you also want to know why we are suggesting this cluster size, and how …

refs-backup-repository-monitoring-prtg-00. Veeam reads all blocks of all incremental backups and adds them to the previous full backup.

I've looked at the documentation and it says to use 64KB block size for the ReFS volume and to ensure Windows is kept up to date of course.

The Veeam block size of 512KB is going to be written in the underlying filesytem, which has a block size of 64k. It means that one block will consume 8 blocks ...