Metal as a Service (MaaS)
甚麼是MaaS?
MaaS的全名為Metal as a Service, 其中, Metal為Bare metal, 所指的是不帶作業系統的伺服器硬體. 考量到一個資料中心的使用環境, 當管理者必須管理數以百台,甚至千台實體機器(physical nodes), 如何將這些伺服器組件起來, 變成像是hadoop或是OpenStack的叢集提供雲端服務就成了一個棘手的問題.
為了解決這樣的問題, Canonical (ubuntu的母公司) 提出了MaaS的解決方案. 透過MaaS, 管理者可以透過web介面或是API進行叢集 (cluster) 間的資源配置, 例如說, 配置一台至少有16G記憶體的伺服器, 作為hadoop叢集的資料節點. 此功能從ubuntu 12.04版本時開始支援, 提供一些預先設定的內容, 讓安裝好後的Linux作業系統能和既存的服務叢集相容.
考慮到MaaS和伺服器網路的關聯性, 對於MaaS管轄下的伺服器叢集的網路介面 (例如: DHCP和DNS), 都必須歸MaaS管轄, MaaS管轄的單元為伺服器叢集, 在叢集中, 伺服器扮演不同的角色, 以OpenStack為例: 至少包含了Control Node, Network Node以及Compute Node. 藉由監控這些節點的負載, MaaS可以平衡一個雲端服務叢集所需要的資源, 並動態配置, 增進資料中心的能源使用效率.
Bare Metal
A new computer system that does not contain an operating system or any software. For example, when you purchase a new hard drive it is completely empty, or "nothing but bare metal".
From:
http://www.webopedia.com/TERM/B/bare_metal.html
Introducing MAAS
Metal as a Service – MAAS – lets you treat physical servers like virtual machines in the cloud. Rather than having to manage each server individually, MAAS turns your bare metal into an elastic cloud-like resource.
What does that mean in practice? Tell MAAS about the machines you want it to manage and it will boot them, check the hardware’s okay, and have them waiting for when you need them. You can then pull nodes up, tear them down and redeploy them at will; just as you can with virtual machines in the cloud.
When you’re ready to deploy a service, MAAS gives Juju the nodes it needs to power that service. It’s as simple as that: no need to manually provision, check and, afterwards, clean-up. As your needs change, you can easily scale services up or down. Need more power for your Hadoop cluster for a few hours? Simply tear down one of your Nova compute nodes and redeploy it to Hadoop. When you’re done, it’s just as easy to give the node back to Nova.
From:
http://askubuntu.com/questions/476371/how-do-i-use-maas-to-prepare-to-install-openstack
Other reference:
https://maas.ubuntu.com/
http://www.ubuntu.com/download/cloud/install-ubuntu-openstack
http://www.markshuttleworth.com/archives/1103
MaaS的全名為Metal as a Service, 其中, Metal為Bare metal, 所指的是不帶作業系統的伺服器硬體. 考量到一個資料中心的使用環境, 當管理者必須管理數以百台,甚至千台實體機器(physical nodes), 如何將這些伺服器組件起來, 變成像是hadoop或是OpenStack的叢集提供雲端服務就成了一個棘手的問題.
為了解決這樣的問題, Canonical (ubuntu的母公司) 提出了MaaS的解決方案. 透過MaaS, 管理者可以透過web介面或是API進行叢集 (cluster) 間的資源配置, 例如說, 配置一台至少有16G記憶體的伺服器, 作為hadoop叢集的資料節點. 此功能從ubuntu 12.04版本時開始支援, 提供一些預先設定的內容, 讓安裝好後的Linux作業系統能和既存的服務叢集相容.
考慮到MaaS和伺服器網路的關聯性, 對於MaaS管轄下的伺服器叢集的網路介面 (例如: DHCP和DNS), 都必須歸MaaS管轄, MaaS管轄的單元為伺服器叢集, 在叢集中, 伺服器扮演不同的角色, 以OpenStack為例: 至少包含了Control Node, Network Node以及Compute Node. 藉由監控這些節點的負載, MaaS可以平衡一個雲端服務叢集所需要的資源, 並動態配置, 增進資料中心的能源使用效率.
Bare Metal
A new computer system that does not contain an operating system or any software. For example, when you purchase a new hard drive it is completely empty, or "nothing but bare metal".
From:
http://www.webopedia.com/TERM/B/bare_metal.html
Introducing MAAS
Metal as a Service – MAAS – lets you treat physical servers like virtual machines in the cloud. Rather than having to manage each server individually, MAAS turns your bare metal into an elastic cloud-like resource.
What does that mean in practice? Tell MAAS about the machines you want it to manage and it will boot them, check the hardware’s okay, and have them waiting for when you need them. You can then pull nodes up, tear them down and redeploy them at will; just as you can with virtual machines in the cloud.
When you’re ready to deploy a service, MAAS gives Juju the nodes it needs to power that service. It’s as simple as that: no need to manually provision, check and, afterwards, clean-up. As your needs change, you can easily scale services up or down. Need more power for your Hadoop cluster for a few hours? Simply tear down one of your Nova compute nodes and redeploy it to Hadoop. When you’re done, it’s just as easy to give the node back to Nova.
From:
http://askubuntu.com/questions/476371/how-do-i-use-maas-to-prepare-to-install-openstack
Other reference:
https://maas.ubuntu.com/
http://www.ubuntu.com/download/cloud/install-ubuntu-openstack
http://www.markshuttleworth.com/archives/1103
留言
張貼留言