[Gluster-users] Can I create a distributed dispersed volume with RAM drives?

[Vijay Bellur]

On Tue, Aug 20, 2019 at 4:47 PM Ewen Chan <alpha754293 at hotmail.com> wrote:

> Vijay:
>
> Here is what it says:
>
> [root at node1 brick1]# gluster volume create gv0 stripe 4
> node1:/bricks/brick1/gv0 node2:/bricks/brick1/gv0 node3:/bricks/brick1/gv0
> node4:/bricks/brick1/gv0
> stripe option not supported
>
> Usage:
> volume create <NEW-VOLNAME> [stripe <COUNT>] [replica <COUNT> [arbiter
> <COUNT>]] [disperse [<COUNT>]] [disperse-data <COUNT>] [red
> undancy <COUNT>] [transport <tcp|rdma|tcp,rdma>] <NEW-BRICK>... [force]
>
> It says that the stripe option is not supported, but then in the usage
> right below it, it gives the correct syntax for how to use the gluster
> volume create command.
>


Creating stripe volumes has been deprecated in recent releases. You can
create a dispersed volume using the following syntax:

# gluster volume create [disperse [<count>]] [redundancy <count>]
<brick-list>

HTH,
Vijay


>
> Your help in this matter is greatly appreciated.
>
> Thank you.
>
> Sincerely,
> Ewen
>
> ------------------------------
> *From:* Vijay Bellur <vbellur at redhat.com>
> *Sent:* August 20, 2019 6:21 PM
> *To:* Ewen Chan <alpha754293 at hotmail.com>
> *Cc:* gluster-users at gluster.org <gluster-users at gluster.org>
> *Subject:* Re: [Gluster-users] Can I create a distributed dispersed
> volume with RAM drives?
>
>
>
> On Tue, Aug 20, 2019 at 8:13 AM Ewen Chan <alpha754293 at hotmail.com> wrote:
>
> To Whom It May Concern:
>
> I am currently using CentOS 7.6.1810 on four compute nodes, where each
> node has 128 GB of RAM.
>
> I have created a tmpfs mount point using half of the RAM.
>
> I read the CentOS SIG Gluster Quickstart wiki/document (
> https://wiki.centos.org/SpecialInterestGroup/Storage/gluster-Quickstart).
> In there, it was creating a replicated volume.
>
> Can I create a distributed dispersed volume with RAM drives?
>
> I was able to create a distributed volume, but I am having difficulties
> trying to create a distributed dispersed volume.
>
>
>
> Can you provide more details about the problems encountered while creating
> a distributed dispersed volume?
>
> Thanks,
> Vijay
>
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