The only additional piece of information I would add is that you can see what the maximum NSD size is defined for a pool by looking at the output of mmdf.
Fred Regards, The Spectrum Scale (GPFS) team ------------------------------------------------------------------------------------------------------------------ If you feel that your question can benefit other users of Spectrum Scale (GPFS), then please post it to the public IBM developerWroks Forum at https://www.ibm.com/developerworks/community/forums/html/forum?id=11111111-0000-0000-0000-000000000479 . If your query concerns a potential software error in Spectrum Scale (GPFS) and you have an IBM software maintenance contract please contact 1-800-237-5511 in the United States or your local IBM Service Center in other countries. The forum is informally monitored as time permits and should not be used for priority messages to the Spectrum Scale (GPFS) team. From: Jordan Robertson <salut4ti...@gmail.com> To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Date: 07/10/2018 11:54 AM Subject: Re: [gpfsug-discuss] Allocation map limits - any way around this? Sent by: gpfsug-discuss-boun...@spectrumscale.org To second David's comments: I don't believe changing the max NSD size for a given storage pool is possible (it may be tied to the per-pool allocation mapping?), so if you want to add more dataOnly NSD's to a filesystem and get that error you may need to create a new pool. The tricky bit is that I think this only works with dataOnly NSD's, as dataAndMetadata and metadataOnly NSD's only get added to the system pool which is locked in like any other. -Jordan On Tue, Jul 10, 2018 at 10:28 AM, Uwe Falke <uwefa...@de.ibm.com> wrote: Hi Bob, you sure the first added NSD was 1 TB? As often as i created a FS, the max NSD size was way larger than the one I added initially , not just the fourfold. Mit freundlichen Grüßen / Kind regards Dr. Uwe Falke IT Specialist High Performance Computing Services / Integrated Technology Services / Data Center Services ------------------------------------------------------------------------------------------------------------------------------------------- IBM Deutschland Rathausstr. 7 09111 Chemnitz Phone: +49 371 6978 2165 Mobile: +49 175 575 2877 E-Mail: uwefa...@de.ibm.com ------------------------------------------------------------------------------------------------------------------------------------------- IBM Deutschland Business & Technology Services GmbH / Geschäftsführung: Thomas Wolter, Sven Schooß Sitz der Gesellschaft: Ehningen / Registergericht: Amtsgericht Stuttgart, HRB 17122 From: "Oesterlin, Robert" <robert.oester...@nuance.com> To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Date: 10/07/2018 13:59 Subject: [gpfsug-discuss] Allocation map limits - any way around this? Sent by: gpfsug-discuss-boun...@spectrumscale.org File system was originally created with 1TB NSDs (4) and I want to move it to one 5TB NSD. Any way around this error? mmadddisk fs1 -F new.nsd The following disks of proserv will be formatted on node srv-gpfs06: stor1v5tb85: size 5242880 MB Extending Allocation Map Disk stor1v5tb85 cannot be added to storage pool Plevel1. Allocation map cannot accommodate disks larger than 4194555 MB. Checking Allocation Map for storage pool Plevel1 mmadddisk: tsadddisk failed. Verifying file system configuration information ... mmadddisk: Propagating the cluster configuration data to all affected nodes. This is an asynchronous process. mmadddisk: Command failed. Examine previous error messages to determine cause. Bob Oesterlin Sr Principal Storage Engineer, Nuance _______________________________________________ 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 _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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