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Questions tagged [ceph]

Ceph is a free software storage platform designed to present object, block, and file storage from a single distributed computer cluster.

Ceph is a free software storage platform designed to present object, block, and file storage from a single distributed computer cluster. Ceph's main goals are to be completely distributed without a single point of failure, scalable to the exabyte level, and freely-available.

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Ceph with mainstream (desktop) SSDs?

I am searching for an answer about using SSDs drivers, which are build for the mainstream. Afaik ceph uses for its marketing to buy cheap disks for entprise ready storages. But I cannot find any details or tests about this. E.g. if you take a look…
cilap
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How to benchmark small file (5kb) in ceph

I have read this article: https://tracker.ceph.com/projects/ceph/wiki/Benchmark_Ceph_Cluster_Performance But the problems is they benchmark a 4MB file while i need like to benchmark 1000 5kb file Is there anyway to do it, like the dd if=/dev/null…
Lê Minh Quân
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Ceph installation experiences high swap usage

Currently I'm running a 8 server Ceph setup consisting out off 3 Ceph monitors and 5 Ceph nodes. Performance wise the cluster runs great but after time the nodes start swapping the ceph-osd process to disk. When this happens I experience very pore…
bk207
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Compaction error: Corruption: block checksum mismatch: expected 862584094, got 1969278739

Currently trying to handle this right on my 3-day memorial weekend :D Ceph 13.2.4 (Filestore) Rook 0.9 Kubernetes 1.14.1 https://gist.github.com/sfxworks/ce77473a93b96570af319120e74535ec My setup is a Kubernetes cluser with rook handling Ceph.…
sfxworks
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CEPH for video streaming?

So i have a video streaming app (HLS) and was wondering if using CEPH or GlusterFS would be a good idea vs using plain SAN storage? (from performance prospective) In general is software defined the silver bullet for storage (can it be used…
SHM
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Indicating multiple clusters with ceph-ansible

I am working through a Ceph course right now (ceph learning path from packtpub). The course is ok, but has a lot of errors, and isn't always the most accurate. The course expects that you use ceph-ansible to do a lot of the work. You start by…
Matthew
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Is more memory than the required beneficial for Ceph BlueStore OSDs?

I have a cluster of servers, each of them having 128GB or RAM and 6 x 2TB spinning disks dedicated for BlueStore OSDs. The servers also act like KVM hosts, so they are not dedicated to Ceph. In the past when using FileStore we noticed that if a…
Jacket
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Ceph - Erasure Coded Pools - Always get inactive pgs

I'm trying to achieve similar thing to raid6 on ceph. But When I'm creating erasure coded pools (k=3 + m=2(or k=4) ) I always get inactive pgs. ceph health details are: HEALTH_WARN Reduced data availability: 128 pgs inactive PG_AVAILABILITY Reduced…
Lisek
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How do I use a non-standard ceph system user?

I configured a ceph user on my cluster named "cepher." I ran ceph-deploy as this user to deploy some servers. Then I see this: [block][INFO ] Running command: sudo ceph --cluster ceph --name client.bootstrap-mds --keyring…
mr.zog
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Ceph Erasure Profile with k+m> 6 disks -> PGs to be stuck on creating+incomplete state forever

So my pools has 5 nodes with 12 osds each of 8tb. Currently I am trying to create an erasure coded pool of k=8 m=2, however after adding this profile and create an ecpool with this profile the pools is always stuck on creating+incomplete. If I…
Vish
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mount cephfs or rbd via Internet

Is there any suitable solution for this? I know about security issues, but is it possible? Or other better storage solutions? We tested s3fs+cephrgw, but It's very slow and unstable.
沈东立
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How to upgrade librbd1 and librados2 for oVirt 4.2.x (node ng)

oVirt 4.2 comes with librbd1 und librados2 from the Ceph Hammer release which is 0.94.5. I need to update both libraries to the luminous version which is 12.x. because my ceph server is not able to talk to clients with the old 0.94.5 version. How to…
itsafire
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Why does ovirt VM using ceph disk stay in "waiting for launch" status

My setup comprises of ceph mimic (centos 7, setup with ceph-ansible), cinder/keystone combo on pike release, and ovirt 4.2.5.1. The external cinder provider is setup and I can create disks. When creating a vm and starting it, the VM shows up in the…
itsafire
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install grub in a usb and boot proxmox from another drive

Good morning my friends! I'm tryng a solution before buy some new hardware. So this is my situation: I have some beautifull hp dl360p gen8 that comes with an p420i hardware raid controller. What I'm tryng to build is a proxmox+ceph cluster for my…
silvered.dragon
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Does Swift or Ceph have "Vault Lock"-like capabilities?

AWS Glacier offers Vault Lock, which enables compliance policies like “write once read many” (WORM). Google Cloud Platform Storage does not. Does OpenStack Swift or Ceph offer any similar compliance features out of the box?
SeanFromIT
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