ZFS AnyRaid in ZFS

[cracauer@]

This is pretty cool. Expand your ZRAID or mirror with uneven size disks and more:

View: https://youtu.be/mZ-dhntnkCQ?t=509

 

[ralphbsz]

That's such a cool feature. And so hard to implement. Kudos.

 

[Bucky]

What's with the BLARING music?

 

[Maturin]

Music is too annoying. Unwatchable.
Is there a link to a text to read instead?

 

[Beastie7]

They really need to add chapters to their videos for each talk. It’s a pain in the a** to scroll a long video and wait for buffering just to skip forward or backwards to the talk I want to watch. Don’t just dump the entire stream and forget it.

Organizers. Fix this.

 

[victort]

So if I have a 2TB and an 8TB drive, and the 8 goes shot with 80 percent storage, what happens?

 

[ralphbsz]

If the 2 and the 8 are the only drives you have, and you asked for a 2-way mirror, your 2-way mirror will only have 2TB capacity. I guess the remainder of the 8TB could be used for non-redundant storage if you like to use that.

The interesting case is if you have for example a 2, 5 and 8 TB drive, and ask for a mirror: You will get 7 TB capacity. And if you replace the 2 with a new 12 TB, your usable mirrored capacity will go up to 12.5 TB, using every single byte of the disks.

With wider layouts (in particular the ones that are commonly used with RAID-Z and -Z2/-Z3), the combinatorics gets tricky, and figuring out the capacity on the back of an envelope may be too difficult.

 

[cracauer@]

So if I have a 2TB and an 8TB drive, and the 8 goes shot with 80 percent storage, what happens?

For anyraid to work you need one disk more than your redundancy count.

So if your redundancy is 2-way mirror you need at least 3 disks.

 

[cracauer@]

What's with the BLARING music?

I have no idea. It wasn't there during the conference talk.

I am in contact with the authorities on streaming.

 

[cracauer@]

Apologies for the music.

There is a webinar on this tomorrow if you want a fresh feed:

Understanding AnyRAID: Architecture, Use-Cases, and Tradeoffs - Klara Systems

Join Allan Jude and Jon Panozzo to learn how AnyRAID mixed-drive storage unlocks more usable ZFS capacity, flexible pool expansion, and efficient mixed-disk layouts.

klarasystems.com

 

[Erichans]

Music is too annoying. Unwatchable.

1. 00:08:29 - @cracauer 's link start time *
2. 00:08:30 - Allan Jude start talking *
3. 00:10:22 - no more music during the remainder of the talk
4. 01:00:40 - Allan Jude ends his presentation

I'd say a bit of perseverance goes a long way.

___
* My "guess" is that at the beginning of the presentation, someone didn't cut out the music in time at the mixer.