Thank you for your reply， yes, I also read "their artivle ablout ...." from https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1636544, sorry.

iesool@126.com

From: Ken Dreyer Date: 2016-10-31 22:48 To: The CentOS developers mailing list. Subject: Re: [CentOS-devel] When will Centos support SUSE lrbd for high availability iSCSI gateways of Ceph RBD images This question came up in the context of Ubuntu as well @ https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1636544 . I'm curious what article you were reading?

Pasting from my response there,

To clarify the list of supported OSes for lrbd: I am leaning towards retiring lrbd from Fedora, and we have no plans to ship that tool on RHEL 7 within Red Hat.

Instead, we're going to use these projects to manage the userland iSCSI bits:

https://github.com/pcuzner/ceph-iscsi-ansible https://github.com/pcuzner/ceph-iscsi-config https://github.com/pcuzner/ceph-iscsi-tools

We have not put ceph-iscsi-ansible into Fedora yet because there is still some question regarding whether ceph-iscsi-ansible upstream will eventually merge with ceph-ansible upstream, but it's in progress.

On Sun, Oct 30, 2016 at 9:37 PM, iesool@126.com iesool@126.com wrote:

Hi all： I read their article about LIO using RBD iSCSI multiple gateway and path support for high availability iSCSI targets. SUSE, Fedora24, and RHEL7 already supports lrbd, but Centos do not. When will Centos support SUSE lrbd for high availability iSCSI gateways of Ceph RBD images？

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iesool@126.com

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On Tue, Nov 1, 2016 at 7:56 PM, iesool@126.com iesool@126.com wrote:

Hi, KenDreyer: All these projects have appeared in RHEL 7.3 or in the future ? https://github.com/pcuzner/ceph-iscsi-ansible https://github.com/pcuzner/ceph-iscsi-config https://github.com/pcuzner/ceph-iscsi-tools

Those packages will not be in Base RHEL (ie CentOS 7.3).

However, we are looking at shipping them as part of the Red Hat Ceph Storage layered product. If that happens, SRPMs for those will show up at ftp://ftp.redhat.com/redhat/linux/enterprise/7Server/en/RHCEPH/SRPMS/ , and eventually we'll try to get the packages into Fedora too (and probably the CentOS Storage SIG as well).

Is there the plan that adding the target_core_rbd to the RHEL's kernel ?

I am not sure about the specific implementation because I'm not a kernel developer :) It's my understanding that the kernel implementation that made it into Linux 4.9 upstream is also going to be in RHEL 7.3's kernel. I recommend checking the RHEL 7.3 Beta kernel RPM in the meantime.

- Ken