cloud rakes

It's time once again to expand. Classical Dictionary ' rake '. the notion of ' cloud rakes '. In effect, these rakes, we saw on April 21-22, when went to Amazon EC2 and April 26, when playing a network of hacked Sony.

Cloud rakes are characterized by the fact that both hit on the forehead to the general public, and thereby cause a serious public outcry.

The problems in data centers is nothing new. This may be a power outage (even two feeder from 2 different power companies may refuse ) sdohshy switch from dust, zasboivshaya card that flunked a bunch of LAN packets, well, the main threat, I would say, the antihero of information technologies - cleaner, which pulled out ' .

It seems that many advocates of cloud computing will power was removed from his argument that the appearance of the prefix ' cloud ' problems with the reliability and security in data centers and applications working there are not solved.

Rather, the formation of eggs in one basket, and the centralization of processing leads to an escalation of problems to all customers served by this ' cloud ' - m. e. in the case of equipment failure or penetration into the security system ' cloud ' downtime and data loss from burglary multiplying at all ' neighbors in the cloud '.

Thinking cynically (and this is reflect in the Amazon cloud, and all companies), nothing wrong with failure ' public ' no clouds - SLA is executed (SLA 99% means 1% of downtime per year - three and a half days, and failure leads to the SLA . It will be interesting to see data on the outflow of customers to Amazon, but I 'd bet a good bottle of whiskey that the outflow will not be - there the public does not have special needs, and at Twitter - much choice.

Another thing - failure of private clouds. Until I heard rumors that there is a project to bring the entire IT infrastructure of medical institutions of Moscow in a couple of large data centers. Regardless of the SLA, in case of breakage of the central part of the infrastructure ( router, cable system ), a simple will ' be translated ' into all serviced agencies. Well, if it planned to limit the transfer of patients receiving the other day, and if the surgeons can not download from the central repository for pictures before the operation?.


Telling horror stories, I do not call for rejection of the clouds, but to recognize the limits of their applicability and to take appropriate measures - need to.
After all, comes to the ridiculous - people buy the VPS ' cloud ' IaaS, happily deploy their applications out there (yes even corporate sites ), but are not interested in backing up. But in 99% of cases, the backup is not included in the standard tariff VPS, and if enabled - the OS image backup and disk. And since 100% of the applications used by the DBMS as a backend, then back up the OS and disk imaging with very high probability will have a broken, ' inconsistency ' copy of the database.

Frighteningly, when an IT technology are adopting not just some very sophisticated businesses receive from such an implementation [ legal ] cost / benefit, and officials from IT, which is actually beginning to impose a new IT technologies in places where income and savings are not .

All the good health and good holidays!.

Update. : The Twitter @ demidov suggested. good link, developing a theme.