Messages in this thread | | | Date | Sat, 16 Jun 2007 18:44:14 -0700 (PDT) | From | dean gaudet <> | Subject | Re: limits on raid |
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On Sat, 16 Jun 2007, David Greaves wrote:
> Neil Brown wrote: > > On Friday June 15, wakko@animx.eu.org wrote: > > > > > As I understand the way > > > raid works, when you write a block to the array, it will have to read all > > > the other blocks in the stripe and recalculate the parity and write it > > > out. > > > > Your understanding is incomplete. > > Does this help? > [for future reference so you can paste a url and save the typing for code :) ] > > http://linux-raid.osdl.org/index.php/Initial_Array_Creation
i fixed a typo and added one more note which i think is quite fair:
It is also safe to use --assume-clean if you are performing performance measurements of different raid configurations. Just be sure to rebuild your array without --assume-clean when you decide on your final configuration.
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