[Gluster-users] Tiered storage feature

[Olaf Buitelaar]

Dear Schlick,

It's indeed dropped, I think it's in favor of more native options. The go
to replacement is lvm-cache (
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/logical_volume_manager_administration/lvm_cache_volume_creation
).
This places just an amount of SSD storage as a cache layer in-front of your
HDDs, using device mapping.
If you're into ansible, you could use these play's;
https://github.com/gluster/gluster-ansible-infra
it seems to operate pretty stable.

Best

Olaf




Op di 26 jan. 2021 om 20:34 schreef Schlick Rupert <Rupert.Schlick at ait.ac.at
>:

> Dear List,
>
>
>
> could anyone enlighten me what happened to the tiered storage feature?
>
>
>
> When finding references to it online, it seemed to be the perfect solution
> for my problem, but further digging shows it was removed in gluster 6.
>
>
>
> What digging did not show is why it was removed and if there are any
> suggestions to solve the issue of having fast and slow storage with
> glusterfs.
>
>
>
> I’m looking for a distributed storage for a small cluster (for now 3
> nodes, 4 fast GPUs each). Space on NVMe SSDs is limited, the nodes are
> interconnected with 100Gb Infiniband.
>
> Gluster seemed to be the perfect solution to mirror between the nodes,
> until I realized that tiered volumes are not supported anymore.
>
>
>
> The removal baffles me a bit, since alternatives available under
> open-source licenses like MooseFS, BeeGFS, CEPH, Lustre have also solutions
> for hierarchical storage management in some form and the use case seems to
> be a common one.
>
>
>
> Best
>
>
>
> Rupert
>
>
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>
>
>
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