[Feature]: Tiered storage

[Zorlin]

Contact Details

zorlin@gmail.com

Is there an existing issue for this?

• I have searched all the existing issues

Is your feature request related to a problem? Please describe.

I would like to use CubeFS with

• Flash
• NVMe
• and spinning rust (regular hard drives)

However, right now I can't really blend those properly without doing weird hacks like making zones for each kind of storage device.

I would love to have a big unified file system, where files can be stored with goal levels like in MooseFS (and potentially you can even do read and write caching where files are cached through a flash/NVMe layer, but that is kind of a bonus feature).

Describe the solution you'd like.

I would love the ability to tag storage as belonging to a particular class of storage, and then be able to tag datasets to say they should stay within that class.

Additionally I'd like to be able to change the amount of replicas on a volume.

Describe an alternate solution.

Not sure, sorry.

Anything else? (Additional Context)

Really enjoying CubeFS :) This would make it killer for me

[morphes1995]

Is this issue in progress ? We also want the funcationality that cubeFS can distinguish different storage devices, like nvme and hdd. And user can specify storage device type when create volume. If nobody is working on this, may be i can try this

[xiaochunhe]

yes， this issue is in progress

[xiaochunhe]

@true1064，Can you post the general solution so that we can discuss it together?

[Zorlin]

Yay! I'm very glad to hear this! CubeFS is sounding more and more promising by the day, I would love to help spawn an English-speaking user community for it.