Hi JAB, Sound interesting, however, I'm actually a newcomer to Scale, I wish I could share the joy of mixing that. I guess maybe it is something similar to LSF RVU/UVUs? Thanks for sharing your experience anyway.
Hi Carl, I just want to let you know that I have got your explanation, and I understand it now. Thanks. Not sure If I should always reply a "thank you" or "I've got it" in the mailing list, or better just do it privately. Same I'm new to mailing list too, so please let me know if I should not reply it publicly. On Fri, Apr 17, 2020 at 6:50 PM Jonathan Buzzard < jonathan.buzz...@strath.ac.uk> wrote: > On 17/04/2020 11:31, T.A. Yeep wrote: > > Hi Carl, > > > > I'm confused here, in the previous email it was said *And for ESS, it is > > licensed Per Drive with different prices for HDDs and SSDs.* > > > > But then you mentioned in below email that: > > But new customers and new OEM systems are *all licensed by Capacity. > > This also applies to IBM's own ESS*: you can keep upgrading your old (if > > hardware is supported) gen 1 ESS on Sockets, but if you replace it with > > *a new ESS, that will come with capacity licenses*. > > > > Now the question, ESS is license per Drive or by capacity? > > > > Well by drive is "capacity" based licensing unless you have some sort of > magical infinite capacity drives :-) > > Under the PVU scheme if you know what you are doing you could game the > system. For example get a handful of servers get PVU licenses for them > create a GPFS file system handing off the back using say Fibre Channel > and cheap FC attached arrays (Dell MD3000 series springs to mind) and > then hang many PB off the back. I could using this scheme create a 100PB > filesystem for under a thousand PVU of GPFS server licenses. Add in > another cluster for protocol nodes and if you are not mounting on HPC > nodes that's a winner :-) > > In a similar manner I use a pimped out ancient Dell R300 with dual core > Xeon for backing up my GPFS filesystem because it's 100PVU of TSM > licensing and I am cheap, and besides it is more than enough grunt for > the job. A new machine would be 240 PVU minimum (4*70). I plan on > replacing the PERC SAS6 card with a H710 and new internal cabling to run > RHEL8 :-) > > > JAB. > > -- > Jonathan A. Buzzard Tel: +44141-5483420 > HPC System Administrator, ARCHIE-WeSt. > University of Strathclyde, John Anderson Building, Glasgow. G4 0NG > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss > -- Best regards *T.A. Yeep*Mobile: 016-719 8506 | Tel/Fax: 03-6261 7237 | www.robusthpc.com
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