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Re: [Gluster-devel] [PATCH] Enable replica 1 mirror cre ation for mirror

From: Joe Landman
Subject: Re: [Gluster-devel] [PATCH] Enable replica 1 mirror cre ation for mirrored volumes
Date: Sat, 28 May 2011 11:28:58 -0400

Creating a replica before the second mirror is ready. Or create the metadata for a mirror so you can prepare a unit for mirroring later without recreating the volume. It's a common system config situation.

Joe Landman

Please pardon brevity and typos. Sent by an Android device.

----- Reply message -----
From: "Anand Avati" <address@hidden>
To: <address@hidden>
Cc: "Gluster Devel" <address@hidden>
Subject: [Gluster-devel] [PATCH] Enable replica 1 mirror creation for mirrored volumes
Date: Sat, May 28, 2011 11:12 am

  Can you shed some more light on the use case? What purpose is the replicate translator serving without the second server? In what way is this more beneficial than loading the replicate translator only when the second server is introduced to the system?


On Sat, May 28, 2011 at 7:11 PM, Joe Landman <address@hidden> wrote:
This patch to the cli enables a very simple replica 1 mirror creation (similar to the "missing" attribute for mdadm RAID1 creation).

It will likely need additional supporting work in add-brick so that incomplete mirrors are assembled correctly for distributed-replicated cases.

Building/Assembling an incomplete mirror is an important capability needed for a number of use cases.

Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics, Inc.
email: address@hidden
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