I have a bunch of question about performance of Lustre, which should be discussed in lustre-discuss list. How many OSTs are you using now? How did you configure LNET? How are you using extra RAM as read cache? Shinobu ----- Original Message ----- From: "Vickey Singh" <vickey.singh22693@xxxxxxxxx> To: ceph-users@xxxxxxxxxxxxxx Sent: Tuesday, September 8, 2015 6:19:24 AM Subject: Extra RAM use as Read Cache Hello Experts , I want to increase my Ceph cluster's read performance. I have several OSD nodes having 196G RAM. On my OSD nodes Ceph just uses 15-20 GB of RAM. So, can i instruct Ceph to make use of the remaining 150GB+ RAM as read cache. So that it should cache data in RAM and server to clients very fast. I hope if this can be done, i can get a good read performance boost. By the way we have a LUSTRE cluster , that uses extra RAM as read cache and we can get upto 2.5GBps read performance. I am looking someone to do with Ceph. - Vickey - _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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