Ceph is what you are looking for if you need seamlessly scalable storage: While traditional storage solutions like SANs or SAN drop-in replacements are scale-up only, Ceph allows you to turn every off-the-shelf computer into a member of a distributed, centrally managed storage network. With Ceph in place, you will never again have to worry about adding new disks to existing SANs or replacing existing disks with bigger ones -- just add new nodes to the cluster and see your storage grow. And as if that wasn't enough already, Ceph comes with inherent HA and replication capabilities, taking the burden of securing your data against outages off your shoulder. This presentation gives an insight into the basic ideas behind the Ceph object storage solution. It also elaborates on the existing front-ends for Ceph (CephFS, RBD, radosgw) and explains how they work. Examples will demonstrate how to use Ceph in production. A live demo completes the talk.

1. Storage with Ceph
Scale-Out made easy
Martin Gerhard Loschwitz
© 2013 hastexo Professional Services GmbH. All rights reserved.

2. Who?

12. Scalable Storage

13. 2 types of Scalability

14. Scale-Up

15. Scale-Up before:

16. Scale-Up afterwards:

17. Scale-Up quickly comes
to its limits

18. Scale-Out

19. Scale-Out before:

20. Scale-Out afterwards:

21. Scale-Out is hip

22. Webserver

23. Databases

24. Even me!

25. Storage? Meh.

26. The Block problem

27. HDD
FS
User Space

28. Blocks for distributed systems?

29. I don’t think so, Tim!

30. Object Stores

32. HDD
FS
User Space
Objects

33. HDD
FS
User Space
Objects

35. Originally a PhD thesis

37. Object Store

38. RADOS

39. Redundant
Autonomic
Distributed
Object
Store

40. 2 Components

41. OSDs

42. MONs

43. Data Placement

45. MONs

46. MONs

47. MONs

48. MONs

49. MONs

50. MONs

51. MONs

52. Parallelization

53. 221 1
MONs

54. 221 1
MONs

55. 221 11 2 21
MONs

56. MONs

57. CRUSH

58. Controlled
Replication
Under
Scalable
Hashing

59. Rack aware

60. Clients?

61. Block Device Driver

62. RBD (RADOS Block Device)

63. rbd

64. Qemu-RBD

66. ReSTful API

67. radosgw

68. Compatible with S3 and Swift

69. POSIX file system

70. CephFS

71. Still Beta!

72. Need a special client?

73. librados

74. Use cases

75. Gigantic Storage

76. 40TB, 3 replicas = € 21.000

77. Virtualization

78. iSCSI Storage

79. Cloud

80. OpenStack

81. live demo

82. 24. May 2013
OpenStack DACH Day 2013
http://openstackdach2013.eventbrite.com

83. Special thanks goes to:
Sage Weil (Twitter: @liewegas)
& crew for Ceph
Inktank (Twitter: @inktank)
for the Ceph logo

84. goo.gl/S1sYZ (me on Google+)
twitter.com/hastexo
hastexo.com
221 11 2 21
MONS