ceph

Canonical has just announced that it has discovered some Linux kernel vulnerabilities that affect the currently released Ubuntu13.04 system. The vulnerability contains a null pointer included in the Ceph client of the Linux kernel. Attackers may exploit this vulnerability to paralyze servers. The vulnerability has been fixed and you can fix it by upgrading the system to Linux-image-3.8.0-29-generic (3.8.0-29.42. Repaired Canonical has just announced

not provide storage of data, but also need to follow a storage backend, such as EMC's bulk devices, Huawei's storage devices, NETAPP storage devices can do its back end. There is also a relatively fire open source distributed storage called Ceph,ceph also provides block storage services and can also be used as Cinder backend. The role of Cinder is to provide the block storage interface for OpenStack, an im

Mirantis, one of the benchmark companies in the OpenStack field, released the latest MOS 8.0 version in early March 2016. This paper tries to make some inductive analysis based on the public data.1. Version Overview 1.1 overview Community version: Liberty, the default integrated components include ceilometer,Cinder,Glance,Heat,Horizon, Ironic (first support),Keystone,Murano (an application catalog, first-time support),Neutron (using Open vSwitch 2.3.1, enhanced L3 HA VRRP, support for IPAM,

Cinder-volume supports a variety of volume provider, we have been using the default LVM in the previous section, we will increase the NFS volume provider.Although NFS is more applied in experimental or small-scale cinder environments, it is unlikely to be used in production environments due to performance and lack of high availability, but the significance of learning NFS volume provider is:1. Understand how Cinder-volume supports multiple backend2. More importantly, you can understand how cinde

community is active. Supports multiple backend,virtualbox of Virtual Media, Amazon EBS, Ceph RBD, OpenStack Cinder, and more. Supports multiple operating systems, Ubuntu, CentOS, RHEL and CoreOS. supports a variety of container orchestration engines, Docker Swarm, Kubernetes, and Mesos. Rex-ray installation is easy to use. Installation configurationRex-ray run on the Docker host as a standalone processRun the following command on

/usr/sbin/sgdisk--new=2:0:5120m--change-name=2:ceph-journal--partition-guid= 2:150f0081-c630-44c9-ad21-7d95613866ea--typecode=2:45b0969e-9b03-4f30-b4c6-b4b80ceff106--mbrtogpt--/dev/sdb/ Sbin/partx-a/dev/sdb/sbin/udevadm settle/usr/sbin/sgdisk--largest-new=1--change-name=1:ceph-data-- Partition-guid=1:db182a1d-f8c6-4660-9c12-0222e2459dd5--typecode=1:89c57f98-2fe5-4dc0-89c1-f3ad0ceff2be--/dev/ Sdb/sbin/partpr

Because the yum source download on the openstack official website is slow, we now download the built-in installation packages of openstack, epel, CEpH, and RedHat, and create a local update and install Yum source. 1. Download the package that comes with openstack, epel, CEpH, and RedHat to a directory/yum. OS. Repo [[Email protected] ~] # Mkdir/yum. OS. Repo 2. Determine the configuration path of the yum S

InstanceThe company's video push server recently recruit a new person, in order to let him familiar with the business as soon as possible, decided to give him a new account on the server, in order to avoid some wrong operation, usually let him in his account under the view of some files, when the need for root authority, only sudo past.Operation:(1) Edit/etc/sudoers fileMIS All=nopasswd:all//define a group MIS, this group of people do not need to output password when sudo to rootUser_alias MIS =

aspects, filtering host and host scoring. The source code of the Kubernetes Scheduler is located in the kubernetes/plugin/, and the general coding directory structure looks like this: --kubernetes --–plugin ———— cmd//kub-scheduler start function in cmd package ———— pkg//scheduling-related specific implementation —————-Scheduler —————— –algorithm ———————— predicates//Host filtering policy ———————— priorities//host scoring strategy —————— –algorithmprovider ———————— defaults//define the default s

Google a bit, the popular open source Distributed File system has a lot of, introduced as follows: Mogilefs:key-value file system, does not support fuse, application access it requires APIs, mainly used in the Web area to deal with a large number of small pictures, the efficiency is much higher than the moosefs. Fastdfs: The Key-value file system, which is improved on the basis of mogilefs, also does not support fuse and provides better performance than mogilefs. Moosefs: Support fuse, relativel

VMWare Workstation Virtual Machine Access Extranet Usually in the use of virtual machines when there is no need to use the external network, the configuration of Ceph, the rapid installation of ceph need to use the outside network, suddenly found that the network, after learning on the Internet, finishing the content. With the NAT mode, I used to think this is a network exchange with the host, want to acces

A large number of software package updates suddenly appeared in the red hat incorrect table. According to the Convention, rhel7.1 should be released. The releasenote software package has been released: https://rhn.redhat.com/errata/rhea-2015-0590.html. According to the visual test, the main highlight is 1, added ceph (0.80.7) software package, https://rhn.redhat.com/errata/RHEA-2015-0 A large number of software package updates suddenly appeared in th

] Chapter 12th-php Start-up process Introduction: Ceph Introduction Eph is designed to be built on inexpensive storage media with high performance, with Scalibility, up to available, providing unified storage, sub-file storage, block storage, and object storage. It's interesting to see the relevant documentation recently, and it's already able to provide block storage for OpenStack, which is a great fit for mainstream trends.