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TRANSCRIPT
The OpenNebula piece in the RDlab-UPC IT
services PuzzleOctober 2016
Gabriel Verdejo Á[email protected]
INDEX
Who? / What? / How? 3
RDlab IT services overview 5
OpenNebula 6
OpenNebula backup 9
OpenNebula tricks 10
References 11
- 2 - [email protected] - https://rdlab.cs.upc.edu
WHO? / WHAT? / HOW?
What?
Who… How...
- 3 - [email protected] - https://rdlab.cs.upc.edu
…Is your “business”?
…Are your numbers? …Do you manage your IT infrastructure?…Are You?
RDlab IT SERVICES OVERVIEW
DRBD DRBD. . . .
OSS MDSOSS OSS
INTERNET
10Gb backbone
ONE HPC
Management
LUSTRE
Filesystem
- 5 - [email protected] - https://rdlab.cs.upc.edu
OPENNEBULA
• Standalone Virtual machine
- 6 - [email protected] - https://rdlab.cs.upc.edu
Windows System User Data
Single file
Windows System
Single file 2
User Data
Single file 1
Single file 2Single file 1
/ /home SWAP
Single file 2 Single file 3
Window
s Systems
Linux
OPENNEBULA II
• Shared Virtual machine (Linux only)
- 7 - [email protected] - https://rdlab.cs.upc.edu
SWAP/
Single file
. . . LXCn System
Single file
LXCn /home
LXCn SWAP
Host Linux Containers
Virtual Machine
LXC1 System
Single file
LXC1 /home
LXC1 SWAP
OPENNEBULA BACKUP
• Windows Systems
- Full image clone monthly (onevm disk-saveas)
• Linux Systems
- Full image clone monthly (onevm disk-saveas)
- Daily incremental backups (tar file)
• 3rd party backup software?
- 9 - [email protected] - https://rdlab.cs.upc.edu
OPENNEBULA TRICKS
• Lessons learned
- Reserve some RAM in hosts
- CPU Performance: Hyperthreading but do not oversubscribe (vCPU)
- Disk Performance: VMDK/QCOW2 vs RAW
- Think before thinking big
- 10 - [email protected] - https://rdlab.cs.upc.edu
REFERENCES
[www1] https://rdlab.cs.upc.edu
[www2] http://www.meme-generator.de
[www3] https://memegenerator.net
[www4] http://www.deviantart.com
[www5] http://vector.me
[www6] http://www.freeiconspng.com
[www7] http://opennebula.org
[www8] http://lustre.org
[www9] https://linuxcontainers.org/
[www10] http://www.mattblease.com
- 11 - [email protected] - https://rdlab.cs.upc.edu