Re: [ceph-users] High osd cpu usage

Hello, I think it not normal behavior in Luminous. I'm testing 3 nodes, each node have 3 x 1TB HDD, 1 SSD for wal + db, E5-2620 v3, 32GB of RAM, 10Gbps NIC. I use fio for I/O performance measurements. When I ran "fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filen

Re: [ceph-users] 2x replica with NVMe

Hi, I think that the replica 2x on HDD/SSD are the same. You should read quote from Wido bellow: ""Hi, As a Ceph consultant I get numerous calls throughout the year to help people with getting their broken Ceph clusters back online. The causes of downtime vary vastly, but one of the biggest ca

Re: [ceph-users] Mix HDDs and SSDs togheter

Hi Jiajia zhong, I'm using mixed SSD and HDD on the same node and I did it from url https://www.sebastien-han.fr/blog/2014/08/25/ceph-mix-sata-and-ssd-within-the-same-box/, I don't get any problems when run SSD and HDD on the same node. Now I want to increase Ceph thoughput by increase network int

Re: [ceph-users] replica questions

Hi, You should read email from Wido den Hollander: "Hi, As a Ceph consultant I get numerous calls throughout the year to help people with getting their broken Ceph clusters back online. The causes of downtime vary vastly, but one of the biggest causes is that people use replication 2x. size = 2

[ceph-users] property upgrade Ceph from 10.2.3 to 10.2.5 without downtime

Hello everyone, I am planning for upgrade Ceph cluster from 10.2.3 to 10.2.5. I am wondering can I upgrade Ceph cluster without downtime? And how to upgrade Ceph from 10.2.3 to 10.2.5 without downtime ? Thanks for help. Regards, ___ ceph-users mailing

Re: [ceph-users] CEPH mirror down again

wrote: > On 11/26/2016 03:05 AM, Vy Nguyen Tan wrote: > >> Hello, >> >> I want to install CEPH on new nodes but I can't reach CEPH repo, It >> seems the repo are broken. I am using CentOS 7.2 and ceph-deploy 1.5.36. >> > > Patrick sent an email to t

[ceph-users] CEPH mirror down again

Hello, I want to install CEPH on new nodes but I can't reach CEPH repo, It seems the repo are broken. I am using CentOS 7.2 and ceph-deploy 1.5.36. *[root@cp ~]# ping -c 3 download.ceph.com * *PING download.ceph.com (173.236.253.173) 56(84) by

Re: [ceph-users] Ubuntu repo's broken

Hello, I have the same problem. I am using Debian 8.6 and ceph-deploy 1.5.36 Logs from ceph-deploy: [*hv01*][*INFO* ] Running command: env DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt-get --assume-yes -q --no-install-recommends install -o Dpkg::Options::=--force-confnew ceph-os