On Wed, Jun 12, 2019 at 6:48 AM Glen Baars <g...@onsitecomputers.com.au> wrote:
> Interesting performance increase! I'm Iscsi it at a few installations and > now a wonder what version of Centos is required to improve performance! Did > the cluster go from Luminous to Mimic? > wild guess: probably related to updating tcmu-runner from 1.3 to 1.4; the old versions had a bug that caused a long timeout on some operations in some workloads Paul > > Glen > > -----Original Message----- > From: ceph-users <ceph-users-boun...@lists.ceph.com> On Behalf Of Heðin > Ejdesgaard Møller > Sent: Saturday, 8 June 2019 8:00 AM > To: Paul Emmerich <paul.emmer...@croit.io>; Igor Podlesny < > ceph-u...@poige.ru> > Cc: Ceph Users <ceph-users@lists.ceph.com> > Subject: Re: [ceph-users] Any CEPH's iSCSI gateway users? > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > I recently upgraded a RHCS-3.0 cluster with 4 iGW's to RHCS-3.2 on top of > RHEL- > 7.6 > Big block size performance went from ~350MB/s to about 1100MB/s on each > lun, seen from a VM in vSphere-6.5 with data read from an ssd pool and > written to a hdd pool, both being 3/2 replica. > I have not experienced any hick-up since the upgrade. > You will always have a degree of performance hit when using the iGW, > because it's both an extra layer between consumer and hardware, and a > potential choke- point, just like any "traditional" iSCSI based SAN > solution. > > If you are considering to deploy the iGW on the upstream bits then I would > recommend you to stick to CentOS, since a lot of it's development have > happened on the RHEL platform. > > Regards > Heðin Ejdesgaard > Synack sp/f > > On frí, 2019-06-07 at 12:44 +0200, Paul Emmerich wrote: > > Hi, > > > > ceph-iscsi 3.0 fixes a lot of problems and limitations of the older > gateway. > > > > Best way to run it on Debian/Ubuntu is to build it yourself > > > > > > Paul > > > > -- > > Paul Emmerich > > > > Looking for help with your Ceph cluster? Contact us at > > https://croit.io > > > > croit GmbH > > Freseniusstr. 31h > > 81247 München > > www.croit.io > > Tel: +49 89 1896585 90 > > > > > > On Tue, May 28, 2019 at 10:02 AM Igor Podlesny <ceph-u...@poige.ru> > wrote: > > > What is your experience? > > > Does it make sense to use it -- is it solid enough or beta quality > > > rather (both in terms of stability and performance)? > > > > > > I've read it was more or less packaged to work with RHEL. Does it > > > hold true still? > > > What's the best way to install it on, say, CentOS or Debian/Ubuntu? > > > > > > _______________________________________________ > > > ceph-users mailing list > > > ceph-users@lists.ceph.com > > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -----BEGIN PGP SIGNATURE----- > > iQIzBAEBCAAdFiEElZWfRQVsNukQFi9Ko80MCbT/An0FAlz6+ocACgkQo80MCbT/ > An28EBAA4FlpRYEhFSWm2dfTdYBfFLNJbLrwyMvXOe22sLHwlz3GWMnY2llJ7nyM > YAZy0DZGmujoztBos3eR1A/FB22yr6BYPjC9/f/+8vt3TMhxG5Tm0g/XifJSXaJl > zL8lA3T+XkcMZkphukjhR2BZWioam0ipT07n6+rNdQCaS9/xt7QE7gwWeGQWxKsf > EDY4XWKjiIvyuK4nt2R1raTl9uaW1FI2qM/UoHWyW+ip86syEC1p1HfqWpeU5Mm2 > TXRgTVRS4tM91GfciwKdCwZIZjT10POyFfk2DHwMA40lUc8cFCyzj3aAkdJp4U4h > 8Wm0QJBzabcuWHfBBJlWRARSGVXKUx08HM3alatO8vum5WSK2w9l5pgyx5H4jM5+ > 6YABtwvT5lwEiHL9hUoO9HDpyj/IcMzHF5yG5v5PdXCuat7HwNcv6dD2j2dEAgma > HlLRo84PNeHiIn52jSSFGr4O6MQTYei/VMD2IbrDJzjUOFCUOxdX5WsSeFdhF5Zc > LW2rcnLiTcRisxiu3MvJI1kUvGFr1GFmjQI/7MeTXiq2bfQh08LUpM6Cz/ch7iUQ > xo7zUGGuQcOx6iSmagTcMa1QqF8+txCSvCTVvlWdXLAzXsDOJ4mkGe1EWJ2pHjz2 > zBcn25Qfws9DEvEww71a/sKp2tlwnKCZgKXhkIBOKyhU7x1dYOI= > =I3pv > -----END PGP SIGNATURE----- > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > This e-mail is intended solely for the benefit of the addressee(s) and any > other named recipient. It is confidential and may contain legally > privileged or confidential information. If you are not the recipient, any > use, distribution, disclosure or copying of this e-mail is prohibited. The > confidentiality and legal privilege attached to this communication is not > waived or lost by reason of the mistaken transmission or delivery to you. > If you have received this e-mail in error, please notify us immediately. >
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