June 12, 2003 at 12:46 pm
Hi everyone, can you please explain to me what is stripping? Thanks in advance.
June 12, 2003 at 3:52 pm
Did you mean STRIPING?
Striping is the splitting up of chunks of data into blocks that are written across the disks, thus taking advantage of multiple concurrent I/O paths, especially so when that data subsequently is read back.
Eg. If there are 5 physical disk drives participating in a striped array (known as RAID Level 0) and a 10000 byte chunk then a block of 2000 bytes is written to each drive. Well actually, depending on how the RAID is configured, it could be 4 blocks of 512 bytes written to each drive, with the last drive getting the dregs.
This RAID 0 stripting is not true RAID because there is no redundancy (as implied by the 'R' in RAID). To get redundancy in striping the most common RAID Level is 5, where the equivalent volume of one of the participating disks is sacrificed for parity information. This parity information is used to rebuild data if and when any one of the participating disks fail.
There's thousands of useful guides out there. One that's fairly comprehensive is: http://www.pcguide.com/ref/hdd/perf/raid/
Cheers,
- Mark
Viewing 2 posts - 1 through 1 (of 1 total)
You must be logged in to reply to this topic. Login to reply