This is a known issue. The workaround is to use --force-nsd-mismatch option. Just make sure that the failure group is different from those used by the vdisk NSDs
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: Luke Sudbery <[email protected]> To: "[email protected]" <[email protected]> Date: 03/28/2019 01:45 PM Subject: [gpfsug-discuss] Filesystem descriptor discs for GNR Sent by: [email protected] We have a 2 site Lenovo DSS-G based filesystem, which with (some of the data) replicated across the 2 sites. We'd like to a 3rd filesystem descriptor disk so we can lose one site and still have filesystem descriptor quorum. But this seems incompatible unless we make new vdisks - which we can't do on non native raid servers. We've added a new NSD which now has a free disc, but can't add that disk as descOnly. Adding the new descriptor disk to the system pool says: mmadddisk: A storage pool may not contain both vdisk NSDs and non-vdisk NSDs. Adding the new disk to a new system_desc pool says: mmadddisk: Disk usage descOnly is incompatible with storage pool system_desc. Tried adding config to specify the system_desc pool is for metadataOnly and it still says it's incompatible. There is no mention of descOnly disks here: https://www.ibm.com/support/knowledgecenter/en/SSFKCN_4.1.0/com.ibm.cluster.gpfs.v4r1.gpfs200.doc/bl1adv_planning.htm Is it possible add a non-vdisk descOnly NSD to a dss-g/GNR solution? Cheers, Luke -- Luke Sudbery Architecture, Infrastructure and Systems Advanced Research Computing, IT Services Room 103, Computer Centre G5, Elms Road Please note I don't work on Monday and work from home on Friday. _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org https://urldefense.proofpoint.com/v2/url?u=http-3A__gpfsug.org_mailman_listinfo_gpfsug-2Ddiscuss&d=DwICAg&c=jf_iaSHvJObTbx-siA1ZOg&r=IbxtjdkPAM2Sbon4Lbbi4w&m=pr7qVunPxXhHi14ZqTSfbZUgVIws-B0IFhNx3TcDovI&s=JWDWojN5xrI2A3WX4AgcN-oxj0UMb89RGCFgNZjNxDk&e=
_______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
