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

Ewen Chan alpha754293 at hotmail.com
Wed Aug 21 10:47:47 UTC 2019


Thank you.

I was doing some research in regards to the difference between ramfs and tmpfs and what others were saying about ramfs is that you can't actually set a ramfs mount point to have a fixed size, so it will keep filling up until you run out of RAM which will either cause the application to crash or it would case it to start swapping heavily.

This is why I went with tmpfs instead because with tmpfs, you can limit it to a fixed size, so it won't grow indefinitely until you run out of RAM, which can cause the host system to hang.



From: Strahil <hunter86_bg at yahoo.com>
Sent: August 21, 2019 6:09 AM
To: Ewen <alpha754293 at hotmail.com>; gluster-users <gluster-users at gluster.org>
Subject: Re: [Gluster-users] Can I create a distributed dispersed volume withRAM drives?

In such setup you definately need  a remote DR volume...

If you create your volumes as ramfs , you should not have issues, but use systemd.mount units - 1. For the ramfs , 2. For glusterd to require  the ramfs mount point.

Best Regards,
Strahil NikolovOn Aug 20, 2019 06:37, 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.
> Any help in regards to this matter would be greatly appreciated!
> Thank you.
> Sincerely,
> Ewen Chan
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> https://lists.gluster.org/mailman/listinfo/gluster-users
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