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Old 08-10-2017, 02:05 PM   #1
Registered: Oct 2004
Location: USA
Distribution: Fedora 25;CentOS 7; Kubuntu; Debian
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A Discussion of Red Hat's Stratis

I just finished reading the design doc for Stratis . If they can keep up with that, it looks like by version 4.0 it'll be on par with BTRFS (including being able to switch RAID levels on the fly)

I was curious if I understood the usage correctly:

I would build a desktop (or server) and put in a bunch of disks. I add all of these to a pool. From there I can create filesystems and they'll grow to whatever size they need. How convenient! No need to regret not giving /var enough space.

But what happens when I want to add more space? Do they get added to that pool? Or do I have to make another pool?

And what happens when a disk is failing? With all this abstraction how do I figure out which disk it is?

And, based on what they've written in the design document, could the pool be made of pairs of disks which are each RAID1'd?

Basically, it sounds really awesome, but how do we deal with the reality of adding more space and/or failiing disks?


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