[ceph-users] Migrate cephfs metadata to SSD in running cluster

2017-01-01 Thread Mike Miller
Hi, Happy New Year! Can anyone point me to specific walkthrough / howto instructions how to move cephfs metadata to SSD in a running cluster? How is crush to be modified step by step such that the metadata migrate to SSD? Thanks and regards, Mike __

[ceph-users] documentation

2017-01-01 Thread Manuel Sopena Ballesteros
Hi, Regarding this doc page --> http://docs.ceph.com/docs/jewel/start/quick-ceph-deploy/ I think the following text needs to be changed? rados put {object-name} {file-path} --pool=data to rados put {object-name} {file-path} --pool= {poolname} thank you Manuel Sopena Ballesteros | Big data Eng

Re: [ceph-users] cephfs (fuse and Kernal) HA

2017-01-01 Thread Henrik Korkuc
On 17-01-02 06:24, Lindsay Mathieson wrote: Hi all, familiar with ceph but out of touch on cephfs specifics, so some quick questions: - cephfs requires a MDS for its metadata (file/dir structures, attributes etc? yes - Its Active/Passive, i.e only one MDS can be active at a time, with a n

[ceph-users] cephfs (fuse and Kernal) HA

2017-01-01 Thread Lindsay Mathieson
Hi all, familiar with ceph but out of touch on cephfs specifics, so some quick questions: - cephfs requires a MDS for its metadata (file/dir structures, attributes etc? - Its Active/Passive, i.e only one MDS can be active at a time, with a number of backup passive MDS's - The passive MDS's

Re: [ceph-users] linux kernel version for clients

2017-01-01 Thread Brad Hubbard
H... my original email got eaten by the big bit bucket in the sky... What it said was you need to look at the ceph_features.h file for kernel/userspace to see the differences. This, for those that can access it, is the latest rhel7.3 version (I imagine the CentOS version would be similar, if

Re: [ceph-users] linux kernel version for clients

2017-01-01 Thread Oliver Dzombic
Hi, on the other side, for example Zheng Yan, but also others, do not get tired to point out, that 3.10 is too old. But i agree, i wonder how 3.10 can be too old ( in general ) and at the same time being the standard kernel of redhat ( the company behind ceph ). Happy new year @ all ! :-) -- M

Re: [ceph-users] linux kernel version for clients

2017-01-01 Thread Jun Hu
I don't agree with this point. 3.10 kernel version is enough, becault Redhat ceph enterprise product is running on Rhel 7 which is 3.10 kernel version too. though redhat 3.10 kernel version is different from upstream kernel 3.10 ; If you use Centos or Rhel Linux distribution as a ceph client