Robert Rother & Andre Lorscheid, PROFI Engineering Systems AG

1. CEPH DAY BERLIN 2015
Easily Build and Extend the Cloud
with Ceph and Openstack

2. AGENDA
CEPH DAY 2015 BERLIN
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack2
01 Introduction PROFI Engineering Systems AG
02 OpenStack Components
03 Openstack & Ceph
04 Use Case
05 File Storage Workaround

3. INTRODUCTION
PROFI ENGINEERING
SYSTEMS AG
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack3

4. PROFI ENGINEERING SYSTEMS AG
INTRODUCTION
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack4
Company
» Founded in 1984
» 142 Mio. € Volume of Sales
» 350 employee
» 14 locations
Our Business
» Full-Service IT provider
» Software, Systems, Cloud, SAP,
Project- und Managed Services
Our Vision
" With our innovative solutions we
create measurable value and thus
make a direct contribution of our
customers success. "

5. OPEN STACK
COMPONENTS
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack6

6. COMPONENTS
OPEN STACK
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack7
V
M
NOVA
(compute)
GLANCE
(images)
NEUTRON
(network)
CINDER
(volumes)
SWIFT
(image
store)
CEILOMETER
(monitoring)
KEYSTONE
(authentification)
HORIZON
(user interface)
HEAT
(orchestration)

7. OPENSTACK & CEPH
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack8

8. PROS
OPEN STACK & CEPH
Customer wants: - reliability
- scalability
- security
- performance
OPEN STACK & CEPH fullfill all these requirements!!!
- Self healing, no need for downtime
- Scalable, nearly without limits
- Multi tenant capability
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack9

9. STORAGE PARTS
OPEN STACK
Object Storage
- Via radosgw on top of librados
- on top an api for S3 (with an interface for Amazon RESTful API)
- or an api for swift (OpenStack Swift API)
File Storage
- Needs a Ceph Metadata Server in the Storage Cluster
- Ceph Storage Cluster Protocol (librados)
- CephFS Library (libcephfs)
- on topCephFS Kernel Object and CephFS FUSE
!!! CephFS currently only for early adopters !!!
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack10

10. STORAGE PARTS
OPEN STACK
Block Storage
- Is always the base
- There are Object Storage Daemons (OSDs) and monitors
- leverage RADOS capabilities such as snapshots, replicas, consistency
- high performance to kernel modules or to KVMs (such as Qemu)
- kernel modules can use Linux page caching
- for librbd based applications you can use RBD Caching
- Constantly restriping and rebalancing in the backend
- Use locations and regions for replicas across datacenters
- For Glance replica 2 is okay, set replicas up to 8
- limit the size via Quotas
- Combine with Glance, Cinder and since Havanna as guest disks (live mig.)
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack11

11. USE CASE
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack12

12. USE CASE
OPEN STACK - CEPH
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack13
Management +
Backup & Recovery

13. FILE STORAGE
WORKAROUND
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack14

14. WORKAROUND
FILE STORAGE
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack15
OPEN STACK
Cluster
CEPH
Cluster
VM
filestorage
server
Client Client Client Client
- Build a VM in OPEN STACK
- Add Volumes from CEPH Cluster directly to VM
- Build the Filestorage Server
- Provide Clients with native File Storage

15. VIELEN DANK FÜR
IHRE AUFMERKSAMKEIT
ANDRÉ LORSCHEID ROBERT ROTHER
SYSTEM ENGINEER & CONSULTANT TECHNISCHER WERKSSTUDENT
TEL: +49 6151 8290 – 7626 +49 30 498577 - 2421
EMAIL: A.LORSCHEID@PROFI-AG.DE R.ROTHER@PROFI-AG.DE
07.05.2015 Easily Build and Extend the Cloud with Ceph and Openstack16