Looking at the simplified diagram, you can see that there are several things competing for time on the CPU: * Each request from a client competes with every other request * The file system semantic layer must decode the request * Error processing may be required for bad requests * Writes into NVRAM are competing for time * Writes into the RAM buffer are competing for time * The block allocation layer must formulate a storage request * The RAID manager must execute the storage request All of these complex tasks require many CPU cycles in order to complete, but that alone doesn't paint the entire picture.
What does 400 stand for?
400 stands for Bad Request (HTTP status code; indicates bad syntax or unfulfillable)
This definition appears very frequently and is found in the following Acronym Finder categories:
- Information technology (IT) and computers
See other definitions of 400
- Abbreviation Database Surfer
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- Four-Dimensional Trellis Encoder
- Head, Heart, Hands, Health (pledged by members of 4-H Clubs)
- 4-Methylimidazole (chemical compound)
- N-(4-Methoxyphenyl) Retinamide (Fenretinide)
- Four-Level Pulse Amplitude Modulation (telecommunications)
- 4-Phenylcyclohexene
- Four-Phase Quadrature Amplitude Modulation
- 4-Wheel Drive
- Four Wire
- Traffic Accident - Public Road (Alabama Public Safety Radio Code)
- Temporary Redirect (HTTP status code; look elsewhere on that request only)
- HTTP Web Error 401 - Authorization Required
- Payment Required (HTTP status code; never used, intended as error for nonpayment)
- HTTP Web Error 403 - Access Forbidden
- I Have No Clue (chat abbreviation)
- Item/Article Not Found (web/HTTP code)
- Method Not Allowed (HTTP status code; indicates a request in an unsupported format)
- Not Acceptable (HTTP status code)
- Proxy Authentication Required (HTTP status code)
- Request Timeout (HTTP status code)