The RAID/SHR configuration would presumably be done first, then the array gets formatted with the chosen filesystem, even if the GUI makes it all "one-step". It doesn't sound like there IS any way within the system to make it use btrfs's own RAID functionality, since that would mean RAID1 or SHR are not used in the first place.
I don't think the performance difference is going to be noticeable for your use to need ext4 compared to the benefits of btrfs. If you're hitting it with THAT many cameras you should be getting more drives or using SSDs, and the LAN is going to be the limiter in any case.
You are right.
After looking at a video for setting up the DS224+ when you configure the storage pool you select the raid type.
Thank you.
Synology does not use btrfs's RAID functionality at all. It builds the RAID with mdadm then formats the filesystem btrfs.
Definitely use btrfs. I could regurgitate but Synology has a great page talking about it.
How Btrfs protects your company's data | Synology Inc.
The next-generation file system Btrfs ensures a high level of data integrity while taking advantage of flexible, efficient data protection and recovery tools. Btrfs is available on selected Synology NAS models.www.synology.com
Thank you. I will go with the Btrfs partition format then.
I am far, far out of my depth and figure Synology’s default setup is likely OK in the setting of being properly backed up (or else we’d all hear about it)…but there are lots of technical considerations. And there may be different recommendations for specialty applications (like camera recording which is different enough that there are specialized hard drives for that activity).
@Jim Salter wrote a front page piece on btrfs (Iink), and there is also a great albeit old thread here (link).
Thank you for the links and I will plan on having a back up solution.