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 http://gpfsug.org/mailman/listinfo/gpfsug-discuss
