Official website address: https://rook.io/
Project address: https://github.com/rook/rook
Prepare osd storage media
Hard disk symbol
>Before installation, use the command lvm lvs,lvm vgs and lvm pvs to check w ...
Posted on Wed, 08 Jan 2020 05:09:33 -0500 by ch3m1st
The MDS of ceph is the metadata service of cephFS file storage service.
When cephfs is created, there will be ceph mds services for management. By default, ceph assigns an mds service to manage cephfs, even if multiple mds services have been created, as follows:
[root@ceph-admin my-cluster]# ceph-deploy mds create ceph-node01 ceph-node02
Posted on Mon, 06 Jan 2020 03:39:07 -0500 by acheoacheo
Try 1. Directly reactivate all OSDs
1. View osd tree
[root@ceph01 ~]# ceph osd tree
ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY
-1 0.29279 root default
-2 0.14639 host ceph01
0.14639 osd.0 up 1.00000 1.00000 ...
Posted on Wed, 01 Jan 2020 07:58:52 -0500 by bsbotto
DaemonSet is a new resource object in Kubernetes version 1.2
DaemonSet enables all (or some specific) Node nodes to run only one Pod.When a node joins a kubernetes cluster, the Pod is scheduled to run on that node, when the node is removed from the kubernetes cluster, the Pod scheduled by the DaemonSet is removed, and if the DaemonSet is delet ...
Posted on Sun, 22 Dec 2019 16:08:44 -0500 by dgrinberg
1. The requirements are as follows: the traditional serial port used by SMS wants to connect to the business and send SMS according to the business settings. The business service is a virtual machine running on kvm, but there is no usb 1.0 interface added on kvm, so we can only mount usb serial port by writing xml ourselves.
2. Log in to the ...
Posted on Thu, 12 Dec 2019 09:33:54 -0500 by phpforever
1 Introduction to Core Components
The lowest storage unit in Ceph is an Object object, each containing metadata and raw data.
OSD is fully named Object Storage Device, which is the process responsible for returning specific data in response to client requests.A Ceph cluster generally has many OSDs.
The full name of PG, Placement ...
Posted on Tue, 26 Nov 2019 15:47:23 -0500 by Cynthia Blue
StatefulSetRC, Deployment and DaemonSet are all stateless services. The IP address, name and start stop sequence of the Pod they manage are all random. What is stateful set? As the name implies, stateful collections manage all stateful services, such as MySQL and MongoDB clusters.Statefullset is essentially a variant of Deployment, whi ...
Posted on Mon, 25 Nov 2019 05:23:52 -0500 by ihcra
I. disk viewing
View all disks
Disks without numbers, partitions with numbers
View partition status of all disks
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes, 1953525168 sectors
Posted on Thu, 31 Oct 2019 21:03:30 -0400 by kaozdragon
Execute on ceph monitor
CINDER_PASSWD='cinder1234!' controllerHost='controller' RABBIT_PASSWD='0penstackRMQ'
1. Create pool pool
Create a pool pool for the cinder volume service (since I have only one OSD node, set the number of replicas to 1) ceph osd pool create cinder-volumes 32 ceph osd pool set cinder-volumes size 1 ceph osd pool applicat ...
Posted on Sun, 20 Oct 2019 16:33:32 -0400 by BrianPeiris
The main steps are as follows: https://www.kubernetes.org.cn/5551.html
This example uses kubeadm to install k8s 1.15, and the system is centos7;
Premise: can be subject study online
Record of main steps:
1. Install docker, omitted;2. Configure the Ipvs module, which will be used by the Kube proxy;
cat > /etc/sysconfig/modules/ipvs.modules ...
Posted on Sun, 20 Oct 2019 16:14:56 -0400 by windwaker