Hi Zheng, FYI. I used to put everything (MGS/MDS/OSS/client) on one node for test purpose. It worked fine and ran for many days without any issue. But you might watch over when the load on the node goes high. And again, that was a test system, not used for production. Also, you may consider to use vm for separating at least MGS/MDS. Regards, Yujun lustre-discuss-request at lists.lustre.org wrote:> Send Lustre-discuss mailing list submissions to > lustre-discuss at lists.lustre.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.lustre.org/mailman/listinfo/lustre-discuss > or, via email, send a message with subject or body ''help'' to > lustre-discuss-request at lists.lustre.org > > You can reach the person managing the list at > lustre-discuss-owner at lists.lustre.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Lustre-discuss digest..." > > > Today''s Topics: > > 1. Lustre Training offering: 2012 June, 26-28 in Barcelona, > Spain (Lindsey Stack) > 2. Re: Could "Client & MGS" or "Client & OSS" running at one > node together? (Carlos Thomaz) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 6 Mar 2012 14:08:07 -0700 > From: "Lindsey Stack" <lstack at whamcloud.com> > Subject: [Lustre-discuss] Lustre Training offering: 2012 June, 26-28 > in Barcelona, Spain > To: <lustre-discuss at lists.lustre.org>, <wc-discuss at whamcloud.com> > Message-ID: <003c01ccfbdd$3bf68e60$b3e3ab20$@whamcloud.com> > Content-Type: text/plain; charset="utf-8" > > Lustre Installation and Administration > > This is a Whamcloud public enrollment class, sponsored by Whamcloud. > > > > Course overview: > > * Introduction to Lustre filesystem > * Architecting and designing Lustre clusters > * Lustre implementation and configuration > * Building large scale Lustre clusters > * Lustre client configuration and setup > * Lustre filesystem backup and restore > * Advanced Lustre Networking > * Tuning Lustre for your environment > * Troubleshooting a Lustre filesystem > * Interactive lab sessions to familiarize users with Lustre > > > > Location: > > Barcelona, Spain > > IDEC-Universitat Pompeu Fabra > > Balmes, 132-134 ? 08008 Barcelona > > > > Training Cost: > > ?1,850 Euros Commercial customers > > ?1,700 Euros Government or Education customers > > ** EARLY BIRD SPECIAL ? receive ?250 discount if you register/pay before May 25, 2012. > > Registrations refundable if canceled 30 days or more before training dates > > > > Registration: > > To let us know of your interest and to have us mail you when details are available, please email us at: training at whamcloud.com with the following information; > > - Name of Participant(s) > > - Company/Organization > > - Address > > - Phone number and Email address > > - Method of payment (either Paypal or PO with check\wire is accepted). Further instructions will be provided when we receive your registration. > > > > Directions, Hotels & Transportation: > Accommodations are the traveler?s responsibility. Below is some links that provides information on location & hotel with special rates. > Location: http://www.idec.upf.edu/how-to-get-to-idec-universidad-pompeu-fabra > > Hotel: http://www.eveniahotels.com/hotelrossello (contact the hotel direct to make reservation and advise that you are attending the IDEC - Universitat Pompeu Fabra to recieve discounted rate) > > > REGISTER NOW! Seats are limited on a first come first served basis. > > Description: cid:image001.png at 01CCFB8B.58D1C470 > > > > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: http://lists.lustre.org/pipermail/lustre-discuss/attachments/20120306/6348ea6d/attachment-0001.html > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: not available > Type: image/png > Size: 2844 bytes > Desc: not available > Url : http://lists.lustre.org/pipermail/lustre-discuss/attachments/20120306/6348ea6d/attachment-0001.png > > ------------------------------ > > Message: 2 > Date: Tue, 6 Mar 2012 13:15:47 -0800 > From: Carlos Thomaz <cthomaz at ddn.com> > Subject: Re: [Lustre-discuss] Could "Client & MGS" or "Client & OSS" > running at one node together? > To: zf5984599 <zf5984599 at gmail.com>, "lustre-discuss at lists.lustre.org" > <lustre-discuss at lists.lustre.org> > Message-ID: <CB7BCB4F.51B6%cthomaz at ddn.com> > Content-Type: text/plain; charset="us-ascii" > > Zheng > > it''s VERY unusual. > Usually the MGS and MDS are deployed in the same server or same HA Pair. > Leave the OSS servers alone as well the clients. > > Honestly I''ve never seen this before, but remember that you have to have the MGS up and running before even start configuring or bringing up the MDS and OSSs. If for some reasons you have to reboot, let''s say a client where the MGS is, you may get into all sort of problems. Again, this is very odd and won''t buy you anything. > > Why don''t you just install the MGS and MDS in the same server/HA pair? It''s a straight forward configuration and will help you manage your environment better. > > Rgds, > Carlos. > > -- > Carlos Thomaz | HPC Systems Architect > Mobile: +1 (303) 519-0578 > cthomaz at ddn.com | Skype ID: carlosthomaz > > DataDirect Networks, Inc. > 9960 Federal Dr., Ste 100 Colorado Springs, CO 80921 > ddn.com<http://www.ddn.com/> | Twitter: @ddn_limitless<http://twitter.com/ddn_limitless> | 1.800.TERABYTE > > From: zhengfeng <zf5984599 at gmail.com<mailto:zf5984599 at gmail.com>> > Reply-To: zf5984599 <zf5984599 at gmail.com<mailto:zf5984599 at gmail.com>> > Date: Mon, 5 Mar 2012 21:01:25 -0800 > To: "lustre-discuss at lists.lustre.org<mailto:lustre-discuss at lists.lustre.org>" <lustre-discuss at lists.lustre.org<mailto:lustre-discuss at lists.lustre.org>> > Subject: [Lustre-discuss] Could "Client & MGS" or "Client & OSS" running at one node together? > > Dear all, > > Since there is no more node in our project when using Lustre, I want to confirm that: > > 1) Could the "Client" and "MGS" run at one node together? or could "Client" and "OSS" run at one node together? > > 2) Suppose I had deployed them at one node, what potential shortcomings or harm are there? > > I am newbie for Lustre file system, please forgive my simple questions. Feel free to share your opinions, many thanks. > > ________________________________ > B.R. > Zheng Feng > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: http://lists.lustre.org/pipermail/lustre-discuss/attachments/20120306/c90799f5/attachment.html > > ------------------------------ > > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss > > > End of Lustre-discuss Digest, Vol 74, Issue 4 > ********************************************* >