Ceph Blog
- Map/unmap RBD device on boot/shutdown
by shan
Quick how-to on mappingunmapping a RBD device during startup and shutdown.We are going to use an…
- Measure Ceph RBD performance in a quantitative way (part II)
by syndicated
This is the 2nd post about Ceph RBD performance. In part1, we go talk about random IO perforamnce…
- Manage a multi-datacenter crush map with the command line
by loic
A new datacenter is added to the crush map of a Ceph cluster: ceph osd crush add-bucket fsf…
- Mixing Ceph and LVM volumes in OpenStack
by loic
Ceph pools are defined to collocate volumes and instances in OpenStack Havana. For volumes that do…
- Ceph RBD objects placement
by shan
Quick script to evaluate the placement of the objects contained in a RBD…
- Creating a Ceph OSD from a designated disk partition
by loic
When a new Ceph OSD is setup with ceph-disk on a designated disk partition say devsdc3 , it will…
- Display the default Ceph configuration
by loic
The ceph-conf command line queries the etccephceph.conf file. ceph-conf --lookup…
- Migrating from ganeti to OpenStack via Ceph
by loic
On ganeti, shutdown the instance and activate its disks:z2-8: gnt-instance shutdown nerrantWaiting…
- Updates to Ceph tgt (iSCSI) support
by dmick
In a previous blog post I introduced work we’ve done to the user-space tgt iSCSI project to allow…
- Collocating Ceph volumes and instances in a multi-datacenter setup
by loic
OpenStack Havana is installed on machines rented from OVH and Hetzner. An aggregate is created for…
- v0.72 Emperor Released
by sage
This is the fifth major release of Ceph, the fourth since adopting a 3-month development cycle.…
- Ceph Performance Part 2: Write Throughput Without SSD Journals
by MarkNelson
INTRODUCTION Hello again!If you are new around these parts you may want to start out by reading the…
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