My thought is that in 4 years you could have migrated to a hypervisor that will have better performance into ceph than an added iSCSI layer. I won't deploy VMs for ceph on anything that won't allow librbd to work. Anything else is added complexity and reduced performance.
On Wed, Feb 28, 2018, 11:49 AM Jason Dillaman <jdill...@redhat.com> wrote: > On Wed, Feb 28, 2018 at 9:17 AM, Max Cuttins <m...@phoenixweb.it> wrote: > > Sorry for being rude Ross, > > > > I follow Ceph since 2014 waiting for iSCSI support in order to use it > with > > Xen. > > What OS are you using in Dom0 that you cannot just directly use krbd? > iSCSI is going to add an extra hop so it will never be able to match > the performance of something that is directly talking to the OSDs. > > > When finally it seemds it was implemented the OS requirements are > > irrealistic. > > Seems a bad prank. 4 year waiting for this... and still not true support > > yet. > > > > > > > > > > > > Il 28/02/2018 14:11, Marc Roos ha scritto: > >> > >> Hi Massimiliano, have an espresso. You know the indians have a nice > >> saying > >> > >> "Everything will be good at the end. If it is not good, it is still not > >> the end." > >> > >> > >> > >> -----Original Message----- > >> From: Massimiliano Cuttini [mailto:m...@phoenixweb.it] > >> Sent: woensdag 28 februari 2018 13:53 > >> To: ceph-users@lists.ceph.com > >> Subject: [ceph-users] Ceph iSCSI is a prank? > >> > >> I was building ceph in order to use with iSCSI. > >> But I just see from the docs that need: > >> > >> CentOS 7.5 > >> (which is not available yet, it's still at 7.4) > >> https://wiki.centos.org/Download > >> > >> Kernel 4.17 > >> (which is not available yet, it is still at 4.15.7) > >> https://www.kernel.org/ > >> > >> So I guess, there is no ufficial support and this is just a bad prank. > >> > >> Ceph is ready to be used with S3 since many years. > >> But need the kernel of the next century to works with such an old > >> technology like iSCSI. > >> So sad. > >> > >> > >> > >> > >> > >> > >> > >> > >> > >> > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@lists.ceph.com > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > -- > Jason > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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