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Re: bored and setting up a 3/4tb array at the office.



On Sat, 2003-04-12 at 07:44, Miernik wrote:
> In article <Pine.LNX.4.33.0304091151350.17495-100000@router.windsormachine.com>, Mike Dresser wrote:
> 
> > Here's the Raid5 values:
> > 
> > Version  1.03       ------Sequential Output------ --Sequential Input- --Random-
> >                     -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
> > Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
> > mike             1G 18574  64 20326   6  9319   2 28163  89 94607   8 381.1   0
> 
> Is ............................................................... this ^^^^^^^^
> the reciprocal (1/x) of random access time?
> 
> If yes, is it really possible to get 2.6 ms random access time on 
> mechanical hard disks? I've never seen a drive which gives a value 
> less then 8 ms in the specifications.

I've never seen a drive which gives a value of more than 250 GB in the
specifications. This (and the fact that this is a RAID5 array) means
there must be at least 3 drives working together on the seeks.

-- 
Tot ziens,

Bart-Jan



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