Re: A puzzling thing about RAID5: syslogd write the log success butanother process can not read the /var/log/messages

[Gewj]

thank for your comments

I should say that this question maybe end up without any reasonable result,
the system is now work well , I have give up investigating this problem 
any more.
maybe the question is just cause by the RAID card crash.

Neil Brown wrote:

> On Wednesday April 7, lmb@xxxxxxx wrote:
>  
>
> > On 2004-04-07T21:24:01,
> >   Gewj <geweijin@xxxxxxxxxxxxxxx> said:
> >
> >    
> >
> > > hammm,tonight is funny because I got a puzzling thing just as....
> > >
> > > my setup is a two-scsi-disk raid5 configuration...
> > >      
> > Impossible. RAID5 requires at least three disks.
> >    
>
> Wrong.  RAID5 works fine with just two drives.  Try it.
>
> NeilBrown
>
> (I admit that there isn't a lot of point doing raid5 with two drives
> as raid1 should provide identical functionality with better
> performance, but it makes an interesting base-line for performances
> tests on N-drive arrays).
>
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