a8790f2303
This patch adds an action to replace a hard drive for an particular osd server. The user executing the action will give the OSD number and also the device name of the replacement drive. The rest is taken care of by the action. The action will attempt to go through all the osd removal steps for the failed drive. It will force unmount the drive and if that fails it will lazy unmount the drive. This force and then lazy pattern comes from experience with dead hard drives not behaving nicely with umount. Change-Id: I914cd484280ac3f9b9f1fad8b35ee53e92438a0a
Overview
Ceph is a distributed storage and network file system designed to provide excellent performance, reliability, and scalability.
This charm deploys additional Ceph OSD storage service units and should be used in conjunction with the 'ceph' charm to scale out the amount of storage available in a Ceph cluster.
Usage
The charm also supports specification of the storage devices to use in the ceph cluster::
osd-devices:
A list of devices that the charm will attempt to detect, initialise and
activate as ceph storage.
This this can be a superset of the actual storage devices presented to
each service unit and can be changed post ceph-osd deployment using
`juju set`.
For example::
ceph-osd:
osd-devices: /dev/vdb /dev/vdc /dev/vdd /dev/vde
Boot things up by using::
juju deploy -n 3 --config ceph.yaml ceph
You can then deploy this charm by simple doing::
juju deploy -n 10 --config ceph.yaml ceph-osd
juju add-relation ceph-osd ceph
Once the ceph charm has bootstrapped the cluster, it will notify the ceph-osd charm which will scan for the configured storage devices and add them to the pool of available storage.
Contact Information
Author: James Page james.page@ubuntu.com Report bugs at: http://bugs.launchpad.net/charms/+source/ceph-osd/+filebug Location: http://jujucharms.com/charms/ceph-osd