ReFS question

[kubimike]

Hi since this seems to be the epicenter of ReFS knowledge does anyone know about the "ReFS enabled file integrity" enforced flag ? I was scanning this URL https://social.technet.microsoft.com/Fo ... erverfiles seemd interesting. Im not having any current issues I just like to be aware of whats going on in the field. Does the latest Veeam service pack do anything to this feature ?

[HannesK]

Hello,
yes, Veeam uses the integrity flag since the advanced integration in 2016. Please see the official blog post

you can also check with powershell



Best regards,
Hannes

[kubimike]

Thanks, so if a file is taken offline because of irreparable corruption how do we retrieve it ?

[Gostev]

First, good to know you're not having any issues currently, and are merely wondering... I did not mention that at the first pass of your post

As for your question, this requires using Storage Spaces Direct, which creates multiple copies of each block in the file under the hood. If you use simple ReFS volume, then irreparable corruption is... err, irreparable - so if this happens, you will need to restore from backup copy.

Note: Server 2019 has introduced some salvage tool for ReFS, which may also help depending on the corruption scenario (currently, there's no documentation available). I've blogged about it in the forum digest a few weeks ago.

[kubimike]

I see however I’ve seen that those those blocks aren’t released as free disk space again. That’s why I was wondering how to get to those files to remove them once and for all

[HannesK]

I suggest asking the Microsoft support what to do with corrupted volumes / files. I guess it's a good idea to not use corrupted blocks again. But as said, as you could loose more data, I'm suggesting to ask for Microsoft / hardware vendor support.

[kubimike]

It seems this forum has more knowledge then the microsoft helpdesk