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This article will explain in detail how to use the ceph function. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Ceph is a distributed file system that can use the functions of block devices, file systems, and object storage.

Block equipment

Create a dedicated storage pool: ceph osd pool create cephfs_data_test

Create an image named foo size 1G in the cephfs_data_test storage pool: rbd create-- size 1024 cephfs_data_test/foo

View block devices for cephfs_data_test storage pools: rbd ls cephfs_data_test

Information: rbd info cephfs_data_test/foo

Expansion: rbd resize-size 2048 cephfs_data_test/foo

Zoom out: rbd resize-- size 1024 cephfs_data_test/foo-- allow-shrink

Delete: rbd rm cephfs_data_test/foo

Turn off property: rbd feature disable cephfs_data_test/foo object-map fast-diff deep-flatten

Then on the physical machine:

Configure ceph.repo Feed

Yum install ceph

Copy / etc/ceph/ceph.client.admin.keyring ceph.conf

Then mount: rbd map cephfs_data_test/foo-- id admin-- keyring / etc/ceph/ceph.client.admin.keyring

View mount on physical machine: rbd showmapped

Uninstall: rbd unmap / dev/rbd0

File system

Only one file system can exist in a cluster

View file system: ceph fs ls

If not, create:

Ceph osd pool create cephfs_data

Ceph osd pool create cephfs_metadata

Cephfs new for example: cephfs new cephfs cephfs_metadata cephfs_data

Check whether the mds is normal. If it is normal, you can mount it: ceph mds stat

Then you can mount: mount-t ceph ip:6789:/ / data-o name=admin,secret= key

Key look / etc/ceph/ceph.client.admin.keyring

Object storage

Create users and remember access_key and secret_key:radosgw-admin user create-- uid= "testuser"-- display-name= "testuser"

View user information: radosgw-admin user info-- uid=testuser

Modify user information: radosgw-admin user modify-- uid=testuser-- email= "123@qq.com"

Deactivate user: radosgw-admin user suspend-- uid=testuser

Enable user: radosgw-admin user enable-- uid=testuser

Delete user: radosgw-admin user rm-- uid=testuser

Set user quota: radosgw-admin quota set-- quota-scope=user-- uid=testuser-- max-objects=1024-- max-size=1024

Start user quota: radosgw-admin quota enable-- quota-scope=user-- uid=testuser

Disable user quota: radosgw-admin quota disable-- quota-scope=user-- uid=testuser

Obtain quota statistics: radosgw-admin user stats-- uid=testuser-- sync-stats

Get the current user consumption quota: radosgw-admin user stats-- uid=testuser

Specified user dosage: radosgw-admin usage show-- uid=testuser-- start-date=2020-03-01-- end-date=2021-04-01

All user usage: radosgw-admin usage show--show-log-entries=false

Delete usage information specified time: radosgw-admin usage trim-- start-date=2020-03-01-- end-date=2020-12-31

Delete usage information specified user: radosgw-admin usage trim-- uid=testuser

Users will not erase the disk immediately after deletion. You can run it: users created by radosgw-admin temp remove can use API S3 to access:

This is the end of the article on "how to use ceph". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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