Calls for US government to act on loss of trust.
A new report by a non-aligned United States think tank warns the American cloud computing industry could take a major earnings hit, thanks to former NSA employee Edward Snowden’s revelations of indiscriminate government mass surveillance.
In the report [PDF], the Information Technology and Innovation foundation (ITIF) said if non-American companies decided the risks of storing data with US firms outweighed the benfits, the collection of electronic data from third-paties “will likely have immediate and lasting impact on the competitiveness on the US cloud computing industry”.
Again. I was involved in administration of one project hosted in Amazon WS cloud. After using Linode it was such a disappointment. Too many complexity after simple Linode dashboard. And pricey. One strange thing: the instance had changed ip after reboot which shouldn’t ever happen.
There was also a story about Linode cloud. They migrated to another location and shut down our server. Linode support attempted to contact us via email but for some strange reason we missed the warning. That server was a kind of legacy and one website hosted was compromised. There were a lots of other websites hosted and thus affected by the whole server shutdown. So this is an example how easy we lost control of our own priduction servers.
Now I prefer to have a mixture of all kind of services. Preferable cheap ones. That includes the local infrastructure. Why not to host test or development in house for free? With caching proxy and replication I achieve redundancy high availability and backup for the price of bowl of chips.
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A fully redundant storage for your VM´s with just no need of expensive SAN equipment, configured in about 30 to 60 minutes – starting from bare-metal. If you want to achieve a similar setup with traditional virtualization solutions with SAN you will need at least 4 servers boxes and the storage network.
Traditional setup with SAN (eg. iSCSI, NFS, FC):
- Two servers for a redundant SAN
- Two servers for redundant virtualization hosts
- Extra storage network, VLAN´s, FC switches, etc
- Complex setup
Proxmox VE with DRBD:
- Only two servers with raid controllers and a bunch of hard drives (configure two raid volumes, one for Proxmox VE and one for DRBD device)
In two words private cloud is like virtualisation on steroids. However it still sitting on virtualisation technologies. Chosing the most suitable is the key to success. So let’s compare some well known market players.
|Proxmox VE||VMware vSphere||Windows Hyper-V||Citrix Xen Server|
|Guest operating system support||Windows and Linux (KVM)
Other operating systems
(OpenVZ supports Linux only)
|Windows, Linux, UNIX||Modern Windows OS, Linux support is limited||Most Windows OS, Linux support is limited|
(known as OS Virtualization)
|Single-view for Mangagement (centralized control)||Yes||Yes, but requires dedicated management server (or VM)||Yes, but requires dedicated management server (or VM)||Yes|
|Simple Licensing Structure||Only one subscription pricing, all features enabled||No||No||No|
|High Availability||Yes||Yes||Requires Microsoft Failover
clustering, limited guest OS
|Live VM snapshots:
Backup a running VM
|Bare metal hypervisor||Yes||Yes||Yes||Yes|
|Virtual machine live migration||Yes||Yes||Yes||Yes|
|Max. Ram and CPU per Host||160 CPU/2 TB Ram||160 CPU/2 TB Ram||64 CPU/1 TB Ram||?|
Original table on ProxMox website: