I never looked into RocksDB, because I thought writing data 24/7 does not benefit from caching. But this is metadata storage, so I might profit from it. Due to lack of sata ports, is it possible to save all RocksDB's on one ssd? It should still be faster, to write it to just one ssd, instead of writing it to the disk directly. Tahnks, Simon ________________________________ Von: Robert Sander <r.sander@xxxxxxxxxxxxxxxxxxx> Gesendet: Montag, 6. September 2021 16:48:52 An: Simon Sutter; Marc; ceph-users@xxxxxxx Betreff: Re: Re: Performance optimization Am 06.09.21 um 16:44 schrieb Simon Sutter: > |node1|node2|node3|node4|node5|node6|node7|node8| > |1x1TB|1x1TB|1x1TB|1x1TB|1x1TB|1x1TB|1x1TB|1x1TB| > |4x2TB|4x2TB|4x2TB|4x2TB|4x2TB|4x2TB|4x2TB|4x2TB| > |1x6TB|1x6TB|1x6TB|1x6TB|1x6TB|1x6TB|1x6TB|1x6TB| "ceph osd df tree" should show the data distribution among the OSDs. Are all of these HDDs? Are these HDDs equipped with RocksDB on SSD? HDD only will have abysmal performance. Regards -- Robert Sander Heinlein Consulting GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-43 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |