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ewwhite / zfs-ha

ZFS High-Availability NAS
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Spread ZFS Pools across nodes #37

Open rbicelli opened 3 years ago

rbicelli commented 3 years ago

Hi, could I create various group resources (group-vol1, group-vol2, group-vol3, gruop-vol4) and spread them across cluster nodes?

ewwhite commented 3 years ago

Yes, you can have different pools assigned to different cluster nodes. A common set up with two hosts is to run one pool and host one, and another pool on host two. It’s a way of leveraging all the resources available and having reasonable failover in the event of a node’s unavailability.

Edmund White

On Apr 3, 2021, at 2:44 PM, Riccardo @.***> wrote:



Hi, could I create various group resources (group-vol1, group-vol2, group-vol3, gruop-vol4) and spread them across cluster nodes?

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rbicelli commented 3 years ago

And could it work using 2 SAS controllers per host connecting each to different chains? Like Controller 1 Host 1 -> Enclosure Chain 1 Controller 1 Host 2 -> Enclosure Chain 1 Controller 2 Host 1 -> Enclosure Chain 2 Controller 2 Host 2 -> Enclosure Chain 2

each node serving 2 volumes per chain?

almereyda commented 1 year ago

In Kubernetes environments, one can also leverage OpenEBS cStor for replicated pools across multiple nodes: