Hello, you will want to read: https://www.sebastien-han.fr/blog/2014/08/25/ceph-mix-sata-and-ssd-within-the-same-box/ especially section III and IV. Another approach w/o editing the CRUSH map is here: https://elkano.org/blog/ceph-sata-ssd-pools-server-editing-crushmap/ Christian On Wed, 8 Jun 2016 10:54:36 +0800 秀才 wrote: > Hi all, > > There are SASes & SSDs in my nodes at the same time. > Now i want divide them into 2 groups, one composed of SASes and one > only contained SSDs. When i configure CRUSH rulesets, segment below: > > > # buckets > host robert-a { > id -2 # do not change unnecessarily > # weight 1.640 > alg straw > hash 0 # rjenkins1 > item osd.0 weight 0.250 #SAS > item osd.1 weight 0.250 #SAS > item osd.2 weight 0.250 #SSD > item osd.3 weight 0.250 #SSD > > } > > > So, i am not sure must host bucket name be the same with hostname. > > > Or host bucket name does no matter? > > > > Best regards, > > Xiucai -- Christian Balzer Network/Systems Engineer chibi@xxxxxxx Global OnLine Japan/Rakuten Communications http://www.gol.com/ _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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