Ceph cluster

Press release

Press release 1600 899 Michiel Manten

Fairbanksacquires 42on.Fairbanks, leading provider in open source cloud solutions, announces the acquisition of 42on, leading provider of services for the Ceph storage platform.Read press release Pressrelease. Amersfoort, July 23 2019 Fairbanks, leading provider in open source cloud solutions, announces the acquisition of 42on, leading provider of services for the scalable, open source Ceph storage platform.…

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Setting noout flag per Ceph OSD

Setting noout flag per Ceph OSD 1630 1001 Wido den Hollander

Prior to Ceph Luminous you could only set the noout flag cluster-wide which means that none of your OSDs will be marked as out. On large(r) cluster this isn’t always what you want as you might be performing maintenance on a part of the cluster, but you sill want other OSDs which go down to…

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HAProxy in front of Ceph Manager dashboard

HAProxy in front of Ceph Manager dashboard 1500 1000 Wido den Hollander

The Ceph Mgr dashboard plugin allows for an easy dashboard which can show you how your Ceph cluster is performing. In certain situations you can’t contact the Mgr daemons directly and you have to place a Proxy server between your computer and the Mgr daemons. This can be done easily with HAProxy and the following…

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VXLAN with VyOS and Ubuntu 18.04

VXLAN with VyOS and Ubuntu 18.04 1267 950 Wido den Hollander

VXLAN Virtual Extensible LAN uses encapsulation technique to encapsulate OSI layer 2 Ethernet frames within layer 4 UDP datagrams. More on this can be found on the link provided. For a Ceph and CloudStack environment I needed to set up a Proof-of-Concept using VXLAN and some refurbished hardware. The main purpose of this PoC is…

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Placement Groups with Ceph Luminous stay in activating state

Placement Groups with Ceph Luminous stay in activating state 1500 1001 Wido den Hollander

Placement Groups stuck in activating When migrating from FileStore with BlueStore with Ceph Luminuous you might run into the problem that certain Placement Groups stay stuck in the activating state. 44 activating+undersized+degraded+remapped PG Overdose This is a side-effect of the new PG overdose protection in Ceph Luminous. Too many PGs on your OSDs can cause…

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