Memory sizing

Pete Wright writes:

> you can get decent performance, but i would day they
are much less
> reliable than SCSI disks.

We run 8 disks, and keep 2 as hot spare. 

> yep sure is, although you can implement such a scheme
with a decent
> hardware controller...

Based on http://raid.com/04_01_0
3.html, I don't think I would use it as a 
software raid. Also this one point is a killer:

"Transaction rate equal to that of a single disk drive
at best (if spindles 
are synchronized)" 
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> Pete Wright writes:
>
>> you can get decent performance, but i would day
they are much less
>> reliable than SCSI disks.
>
> We run 8 disks, and keep 2 as hot spare. 
>
>> yep sure is, although you can implement such a
scheme with a decent
>> hardware controller...
>
> Based on http://raid.com/04_01_0
3.html, I don't think I would use it as a
> software raid. Also this one point is a killer:
>
> "Transaction rate equal to that of a single disk
drive at best (if
> spindles
> are synchronized)"
>


hmm...makes sense.  we use it heavilly with our Autodesk
Flame and Inferno
systems.  actually on those systems it's several stripes
with parity so
you still get very fast IO.  i guess in your situation you
would be best
with something like RAID10.
-p


-- 
~~oO00Oo~~
Peter Wright
petenomadlogic.org
www.nomadlogic.org/~pete
310.869.9459
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If anyone out there has a spare moment and has

	a- FreeBSD 6.0 ( initial )
	b- FreeBSD 6.0 ( upgraded from 5.4 )

can you please try to see if

	/usr/ports/mail/exim-sqlite

will build on your system ?

There was an error w/the pthreads, it was fixed in a recent
patch,  
but I still can't get it to build on my machine.

I contacted the port maintainer.  He double checked , and
got it  
running on a 5.4 and a 6.0 machine

I'm thinking that *maybe* it's because I upgraded to 6.0
from 5.4

I just want to confirm that this issue is on my machine only
, before  
I give up on running this app.  ( I tried everything, and
then some,  
to get this to work.   which led to me corrupting my linked
libraries  
this weekend.  )

Thank You.
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Jonathan wrote:
> If anyone out there has a spare moment and has
> 
> 	a- FreeBSD 6.0 ( initial )
> 	b- FreeBSD 6.0 ( upgraded from 5.4 )
> 
> can you please try to see if
> 
> 	/usr/ports/mail/exim-sqlite
> 
> will build on your system ?
> 
> There was an error w/the pthreads, it was fixed in a
recent patch,  
> but I still can't get it to build on my machine.
> 
> I contacted the port maintainer.  He double checked ,
and got it  
> running on a 5.4 and a 6.0 machine
> 
> I'm thinking that *maybe* it's because I upgraded to
6.0 from 5.4
> 
> I just want to confirm that this issue is on my machine
only , before  
> I give up on running this app.  ( I tried everything,
and then some,  
> to get this to work.   which led to me corrupting my
linked libraries  
> this weekend.  )
> 
> Thank You.

Worked fine for me on a straight 6.0-RELEASE build from
scratch:

rootchronos [/usr/ports/mail/exim-sqlite]# make
=> exim-4.61.tar.bz2 doesn't seem to exist in
/usr/ports/distfiles/exim.

<snip>

 >>> exim binary built
rootchronos [/usr/ports/mail/exim-sqlite]# make install
<snip>
Don't forget to add 'exim_enable="YES"' to
rc.conf(5)

===>   Compressing manual pages for exim-sqlite-4.61_1
===>   Registering installation for exim-sqlite-4.61_1
===> SECURITY REPORT:
       This port has installed the following binaries which
execute with
       increased privileges.
/usr/local/sbin/exim-4.61-1

       This port has installed the following files which may
act as network
       servers and may therefore pose a remote security risk
to the system.
/usr/local/sbin/exim-4.61-1

       This port has installed the following startup scripts
which may cause
       these network services to be started at boot time.
/usr/local/etc/rc.d/exim.sh

       If there are vulnerabilities in these programs there
may be a 
security
       risk to the system. FreeBSD makes no guarantee about
the security of
       ports included in the Ports Collection. Please type
'make deinstall'
       to deinstall the port if this is a concern.

       For more information, and contact details about the
security
       status of this software, see the following webpage:
http://www.exim.org/
rootchronos [/usr/ports/mail/exim-sqlite]# uname -a
FreeBSD chronos.unixfun.net 6.0-RELEASE FreeBSD 6.0-RELEASE
#0: Sun Mar 
  5 01:00:21 EST 2006 
rootchronos.unixfun.net:/usr/obj/usr/src/sys/Chronos 
i386


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On Apr 26, 2006, at 12:19 AM, Kevin Reiter wrote:

> Worked fine for me on a straight 6.0-RELEASE build from
scratch:

Thanks a ton.

I suspect then it has something to do with upgrading from
5.4 -> 6.0. 
  
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