Hi, all, Mladen, (This is my first post to the GPFSug-discuss list. I am IBMer, am the IBM worldwide technical support Evangelist on Spectrum Scale/ESS. I am based in Florida. Apologies if my attachment URL is not permitted or if I did not reply properly to tie my reply to the original poster - pls let me know if there are more instructions or rules for using GPFSug-discuss (I could not find any such guidelines)). ------------- Mladen, Increasing or changing inodes in a GPFS/Spectrum Scale file system can be done non-disruptively, within the boundaries of how GPFS / Spectrum Scale works. I wrote and delivered the following presentation on this topic back in 2013 in the GPFS V4.1 timeframe. While older IBM technologies SONAS/V7000 Unified are the reason the preso was written, and the commands shown are from those now-withdrawn products, the GPFS concepts involved as far as I know have not changed, and you can simply use the GPFS/Spectrum Scale equivalent commands such as mmcrfs, mmcrfileset, mmchfileset, etc to allocate, add, or change inodes non-disruptively, within the boundaries of how GPFS / Spectrum Scale works. There's lots of diagrams. Here is a Box link to download this 8.7MB preso which anyone who has the link can use to download : https://ibm.box.com/shared/static/phn9dypcdbzyn2ei6hy2hc79lgmch904.ppt This should apply to any Spectrum Scale / GPFS file system this is the the Spectrum Scale V4.x or older format. I would imagine a file system with the newer Scale V5 variable sub-blocks has a modification to the above schema. I'd be interested to know what that is and how V5 users should modify the above diagrams/information. The PPT is handy because there is animation in Slideshow mode to better explain (at least in my mind) how GPFS / Spectrum Scale V4.x and older allocates inodes, and how you extend or under what circumstances you can change the number of inodes in either a file system or an independent file set. This Box link, will expire on Dec 31, 2019. If you are reading this post past that date, just email me and I will be happy to reshare the preso with you. I wrote this up because I myself needed to remember inode allocation especially in light of how GPFS independent filesets works, should I ever need to refer back to it. Happy to hear feedback on the above preso from all of you out there. Corrections/comments/update suggestions welcome. Regards, John M. Sing Offering Evangelist, IBM Spectrum Scale, Elastic Storage Server, Spectrum NAS Venice, Florida https://www.linkedin.com/in/johnsing/ jms...@us.ibm.com office: 941-492-2998 ------------------------------------------------------------------------------------------------------------------------------------------------------------- Mladen Portak mladen.portak at hr.ibm.com wrote on Wed Mar 6 09:49:13 GMT 2019 Dear. is it process of increasing inodes disruptive? Thank You Mladen Portak Lab Service SEE Storage Consultant mladen.portak at hr.ibm.com +385 91 6308 293 IBM Hrvatska d.o.o. za proizvodnju i trgovinu Miramarska 23, 10 000 Zagreb, Hrvatska Upisan kod Trgovačkog suda u Zagrebu pod br. 080011422 Temeljni kapital: 788,000.00 kuna - uplaćen u cijelosti Direktor: Željka Tičić Žiro račun kod: RAIFFEISENBANK AUSTRIA d.d. Zagreb, Magazinska cesta 69, 10000 Zagreb, Hrvatska IBAN: HR5424840081100396574 (SWIFT RZBHHR2X); OIB 43331467622
_______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss