Thank you for the quick reply Brian. Comments and clarifications in-line. On Tue, 2008-09-23 at 16:16 -0400, Ms. Megan Larko wrote:
>> General question: I know that a Lustre filesystem may have only one >> MGS running in-general and only one MDS for a specific lustre >> filesystem (for example, /usrdisk and /admin1). >Correct. >> Is there a way in >> which a Lustre filesystem may have one MGS and one MDS which runs on >> another machine in the network? >Sure. There is no requirement that the MGS and MDT be in the same >machine. >> I have an MGS/MDS combo running right now. >Ugh. You really should [have] separate[d] them. We didn't really >intend combo mgs/mdts for more than the most simple and/or "toy" >deployments. Ok. I am building a new MDS that is right now successfully on-line using lustre-1.6.5.1 (Note: I had to use a different rpm installation order than that recommended in the Lustre Manual page 3-4 for ver. 1.6.4 BTW. I had to put the kernel-ib rpm in second after the kernel-lustre-smp rpm, then the lustre-ldiskfs, the lustre-modules and finally the lustre rpm.) So I could grab some hw (the requirements for an MGS-only box are low) and create an MGS-only using the lustre-1.6.5.1. Then I would have to migrate my existing systems to the new set-up. I have successfully done file level lustre backup and restores. Would this "upgrade" approach be better (and just put my users scratch space on hold for a couple of weeks? ----- small snip----- >b. megan _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
