An introduction into Oracle VM V3

1. ICT. MAAR DAN VOOR MENSEN
Marco Gralike, Ordina, 2014
SAMEN
DUURZAAM
INNOVEREN

2. Ordina - Oracle SIG, Oracle VM 3.x, 2014 2
An
introduction of
Oracle VM 3.x

3. Marco Gralike
 Management Consultant
 Ordina RT&I, Platforms
 marco.gralike@ordina.nl
 Oracle ACE Director, XML DB
 20+ jaar IT experience (since1993)
− Oracle Database Administration, OS Admin, App.Servers Admin
− Virtualization, Cloud Architectures
− Presenter
 Performance & Troubleshooting
 Semi- & Un-structured Data
3

4. Overview 4

5. Overview 5

6. Oracle VM Server (OVS)
Hardware Requirements (minimum)
 64-bit Processor
 Single CPU, 1 GB RAM
 4GB diskspace for binaries
 1+ Network Interface
Hardware Recommendations
 Dual-core or Multiple CPUs
 Intel VT or AMD-V CPU
 >2 GB RAM
 2-8 Network Interfaces
Check: https://linux.oracle.com/hardware.html
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7. Installation (OVS)
Bare metal installation
 Download iso file from eDelivery
 Request DVD from Oracle Support
Boot system with install software
 From (burned) cd
 USB disk
 PXE image (from existing PXE setup)
Typical install time <90 sec
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8. Required Information (OVS)
Have the following details available before install
 Timezone and UTC clock settings
 Designed disk layout (or use default setup)
 Any drivers needed for ‘special’ network/storage cards
 MAC addresses and network mapping to ports
 IP address, hostname, Netmask, Gateway, DNS
Passwords
 Registration password for OVM Manager
 Root password for local server
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9. After Installation (OVS)
Harddisk
 Local / (root) partition of 3Gb, 1Gb
swap, 100Mb /boot
 Remaining space available without
mountpoint
Network
 Specified network port (setup as part
of bond0)
 No other networks defined
Memory
 Base (Dom0) memory uses 502MB +
0.0205 * physical-memory
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10. Troubleshooting (OVS)
/var/log contains important files
 ovs-agent.log
− Logfile for the Oracle VM agent. Remote requests and jobs by VM Manager are logged
here. 95% of all issues can be detected and solved by viewing this logfile
 messages
− Logfile containing (default) Linux OS information including usual Linux processes like
network, filesystems, drivers etc
 Various other logfiles
− But the two mentioned are the most important ones !
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11. Overview 11

12. Oracle VM Manager (OVM)
Needs pre-existing OL5-64 bit or OL6-64 bit system
 Only Oracle Linux 5/6 are certified
 Networking already configured
 Required packages installed
− Libaio and unzip
− oracle-validated (optional, helpful)
 May be virtualized
− Is allowed to be installed on the managed OVM environment
− Check installation manual for specific steps
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13. Prerequisites (OVM) - 1
Hardware requirements
 8 GB Memory (or 6 GB if DB is on other host)
 1x 1.83 Ghz 64bit processor
 1 network card
 Harddisk space
− 2.1 GB swapspace
− 5.5 GB in /u01
− 2 GB in /tmp
− 500MB in /var and /usr
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14. Prerequisites (OVM) - 2
Software requirements
 Oracle Linux / Red Hat Enterprise Linux 5.5/6 64bit or later
 Hostname, /etc/hosts and network working/setup
 Oracle VM Manager mounted and accessible
 Oracle user created with required settings
− Can use script ‘createOracle.sh’ from install media
 Following packages installed:
− libaio
− unzip
− bc
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15. Components (OVM)
Oracle MySQL 5.0 database
 Allowed to be used for production
 Can also choose to use Oracle database SE/EE
Oracle Java 1.6 SE
Oracle WebLogic Server 11g
Oracle ADF (provides web interface look-and-feel)
Oracle VM 3.2 Manager
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16. Overview 16

17. Storage Needed For…
Storage and Oracle VM
 Storage types
 Discovering storage for VM usage
Repositories
 NFS Storage
 SAN Storage
 Repositories need to presented to servers
Server pools
 Logical grouping of one or more physical servers
 Virtual Machines can run on or migrate to any server in the pool
 Create different Server Pools for different purposes
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18. Dedicated Server Pools 18

19. Overview Topology (OVM) 19

20. Overview Topology (OVM / OEM) 20

21. Oracle VM Server (OVS) Storage
Local Storage
 SCSI, SAS, SSD, USB etc in local OVM Server
 OS should report empty disk, single partitions not detected
 Not recommended for HA and production usage
Storage server connections
 Shared Network Attached Storage (NFS)
 iSCSI Storage Attached Network
 Fibre Channel Storage Attached Network
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22. Shared Network Attached Storage (NFS)
Create NFS shares on NFS Server
 Detect NFS server and NFS shares in OVM Manager
 Determine which VM’s can use the shares
 Start storing information on the NFS shares
When Virtual Machines are stored on NFS
 Virtual disk I/O needs to be translated into NFS files
 Slower than block I/O like local disks, iSCSI or FC San storage
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23. iSCSI Network Attached Storage (iSCSI)
Simulate remote disks as if they were local
 Normal SCSI commands are transported to iSCSI server
Supported by default
 iSCSI client software (initiator) is present by default
 iSCSI server (target) needs to be setup
 Access rights based on OVM Manager or iSCSI Server setup
When Virtual Machines are stored on iSCSI
 Performance depends on iSCSI Target and network
 Can be as fast as local storage, overhead is less than NFS
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24. Uses dedicated hardware
 To present remote disks/LUNs as local disks
 Setup and acces permissions are setup on the SAN Server
Supported by default
 Drivers might be needed if no default driver exists
 Linux Multipath supported by default for HA setup
 Local changes might be needed (driver options etc)
When Virtual Machines are stored on FibreChannel SAN
 Depends on remote system and FibreChannel network
24Fibre Channel (FC) Storage Attached Network (SAN)

25. Storage Connect Plugins - 1
Specialized plugins for Oracle VM Server
 Plugin created and supported by storage vendor
 Installed on Oracle VM Server
 Oracle VM Manager detects and uses functionality
Functionality varies per Storage Plugin
 Create new NFS shares
 Create new iSCSI disks
 Clone existing NFS shares or iSCSI disks
 Performs other options (access rights etc)
25

26. Storage Connect Plugins - 2
Plugins available by default
 NFS, SCSI (local disks), ZFS Storage Appliance, NetApp Filer
 Example: ZFS Storage Appliance plugin can close iSCSI LUNs, create new
iSCSI LUNS and clone/create NFS shares from the OVM Manager
Additional Plugins available
 https://wikis.oracle.com/display/oraclevm/Oracle+VM+Storage+Connect+Plugins
 Examples: Hitachi, Fujitsu, EMC
 Read the plugin documentation carefully for supported models and any licenses
needed for usage. Oracle is not responsible for the functioning of these plugins
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27. Overview 27

28. Step by Step 28

29. Step by Step 29

30. Step by Step 30

31. Step by Step 31

32. Step by Step 32

33. Step by Step 33

34. Step by Step 34

35. Step by Step 35

36. Demo

37. Step by Step 37

38. Discover Oracle VM Servers (OVS) 38

39. Discover Oracle VM Servers (OVS) 39

40. Step by Step 40

41. Attached Storage (NFS) 41

42. NFS Access Groups 42

43. Step by Step 43

44. Network Channels 44

45. Step by Step 45

46. Virtual NIC’s (needed for VM’s) 46

47. Step by Step 47

48. Server Pool 48

49. Step by Step 49

50. Repository (NFS) 50

51. Step by Step 51

52. Repositories
Logical storage for Oracle VM resources like
 Templates
 ISO images
 Assemblies
Configurable (set of) VM Images
 Virtual Machine configuration Files
 Virtual Disks
52

53. Copy OVM Template to HTTP directory 53

54. Discover OVM Template via URI 54

55. SimpleHTTPServer (Python)
Python has the SimpleHTTPServer module which provides a simple http Request
handler.
 Make sure you are in the directory where the img and vm.cfg files are located.
 pwd
/OVS/running_pool/1548_vm1
 Start a simple Http server
 python -m SimpleHTTPServer 80
Serving HTTP on 0.0.0.0 port 80 ...
 Leave this session open for the duration of the migration.
Jaap Poot
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56. Step by Step 56

57. Overview 57

58. Copy and Unzip OVM Template 58

59. Imported OVM Template 59

60. OVM Template - Change Defaults 60

61. OVM Template - Add Network 61

62. OVM Template - Check / Add Extra Disks 62

63. OVM Template - Alter Boot Order; If Needed 63

64. Create New Virtual Machine - Clone OVM Template 64

65. Create New Virtual Machine - Cloning Process 65

66. Create New Virtual Machine - Start and Configure 66

67. Create New Virtual Machine - Start Console (jnlp file!) 67

68. Create New Virtual Machine - Configure Network/Host 68

69. Create New Virtual Machine - Configure New VM… 69

70. Create New Virtual Machine - DONE 70

71. 71

72. VRAGEN…?
 Marco Gralike
 Management Consultant
 Ordina RT&I, Platformen
 marco.gralike@ordina.nl
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73. References
 Special thanks to
− Christophe Pauliat, Oracle
− Eric Bezille, Oracle
− Oracle Partner Network
 Oracle VM OTN
− https://blogs.oracle.com/cpauliat/
− Oracle OpenWorld 2013 Hands-On Lab: Lab 9870: x86 Enterprise Cloud Infrastructure
with Oracle VM 3.x and Sun ZFS Storage Appliance
 Oracle manuals
− http://www.oracle.com/technetwork/documentation/vm-096300.html
− http://docs.oracle.com/cd/E35328_01/index.html
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