Just a extra note: Multi-cluster (mmremotefs) does not always mean "network" for file system data transfer. If both cluster(s) see the storage over the SAN then the data happens over that path. This is common in a localized scenario for authorization reasons (i.e. nodes 1,2,3 can access file systems A & B, but not C; but nodes 4,5,6 in a separate cluster can access all 3 file systems)
------------------ Glen Corneau Power Systems Washington Systems Center [email protected] From: Marc A Kaplan/Watson/IBM@IBMUS To: gpfsug main discussion list <[email protected]> Date: 03/30/2017 11:27 AM Subject: Re: [gpfsug-discuss] AFM vs mmremotefs Sent by: [email protected] I think you "got it" - despite the name "remote" - mmremotefs is an access method and a way of organizing your data and machines into several clusters - which can work great if your network(s) are fast enough. For example you can have one or more client clusters with no GPFS(Spectrum Scale) file systems stored "locally". And one or several clusters that are servers to those client clusters. AFM is about caching and replicating files... You might do that because of "remote-ness" - or for other reasons... --marc From: "[email protected]" <[email protected]> To: gpfsug main discussion list <[email protected]> Date: 03/30/2017 12:09 PM Subject: [gpfsug-discuss] AFM vs mmremotefs Sent by: [email protected] When does it make sense to use mmremotefs vs AFM? With mmremotefs the actual data lives on the remote cluster right so if you need data closer then AFM make more sense to use? If the clusters get disconnected with mmremotefs I have not access to the data with AFM I do. Do I have these concepts right in my head? Mark R. Bush| Storage Architect Mobile: 210-237-8415 Twitter: @bushmr| LinkedIn: /markreedbush 10100 Reunion Place, Suite 500, San Antonio, TX 78216 www.siriuscom.com|[email protected] This message (including any attachments) is intended only for the use of the individual or entity to which it is addressed and may contain information that is non-public, proprietary, privileged, confidential, and exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any use, dissemination, distribution, or copying of this communication is strictly prohibited. This message may be viewed by parties at Sirius Computer Solutions other than those named in the message header. This message does not contain an official representation of Sirius Computer Solutions. If you have received this communication in error, notify Sirius Computer Solutions immediately and (i) destroy this message if a facsimile or (ii) delete this message immediately if this is an electronic communication. Thank you. Sirius Computer Solutions _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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