Hi Christian Is the data on existing cluster being accesses only through SMB or is it shared with NFS users having same UID/GIDs ? What mechanism would you be using to migrate the data ?
I mean, if it's pure smb and the data migration would also be over smb share only (using tool like robocopy), you need not have the same IDs on both the source and the target system. Best regards, Varun Mittal Cloud/Object Scrum @ Spectrum Scale ETZ, Pune From: "Fey, Christian" <[email protected]> To: gpfsug main discussion list <[email protected]> Date: 11/05/2017 09:07 PM Subject: [gpfsug-discuss] Samba (rid) -> CES (autorid) migration Sent by: [email protected] Hi all, I'm just doing a migration from a gpfs cluster with samba/ctdb to CES protocol nodes. The old ctdb cluster uses rid as idmap backend. Since CES officially supports only autorid, I tried to choose the right values for the idmap ranges / sizes to get the same IDs but was not successful with this. The old samba has a range assigned for their Active directory (idmap config XYZ : range = 1000000-1999999) My idea was to set autorid to the following during mmuserauth create: idmap config * : backend = autorid idmap config * : range = 200000-2999999 idmap config * : rangesize = 800000 With that it should use the first range for the builtin range and the second should then start with 1000000 like in the old rid config. Sadly, the range of the domain is the third one: /usr/lpp/mmfs/bin/net idmap get ranges RANGE 0: ALLOC RANGE 1: S-1-5-32 RANGE 2: S-1-5-21-123456789-123456789-123456789 Does anyone have an idea how to fix this, maybe in a supported way and without storing the IDs in the domain? Further on, does anyone use rid as backend, even if not officially supported? Maybe we could file a RPQ or sth. Like this. Mit freundlichen Grüßen / Best Regards Christian Fey SVA System Vertrieb Alexander GmbH Borsigstraße 14 65205 Wiesbaden Tel.: +49 6122 536-0 Fax: +49 6122 536-399 E-Mail: [email protected] http://www.sva.de Geschäftsführung: Philipp Alexander, Sven Eichelbaum Sitz der Gesellschaft: Wiesbaden Registergericht: Amtsgericht Wiesbaden, HRB 10315 [attachment "smime.p7s" deleted by Varun Mittal3/India/IBM] _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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