Re: Saving the System i: Fight Rather Than Switch

Lukas was particularly complaining of performance during PTF application.  
There's certainly a LOT of writing going on there, and performance will just 
suck on a 2 disk mirrored system.
 
Neil Palmer, Cambridge, Ontario, Canada
 
(This account not monitored for personal mail,
remove the last two letters before @ for that)


----- Original Message ----
From: Al Barsa <barsa@xxxxxxxxxxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Sent: Tuesday, December 12, 2006 9:41:35 AM
Subject: RE: Saving the System i: Fight Rather Than Switch


Two mirrored arms will likely perform better than one arm alone.  The
system has the smarts that when a read is occurring from the first arm,
that a second read (that would have otherwise been queued waiting for the
first read) can occur from the second arm.

Al

Al Barsa, Jr.




                                                                           
                    
Dudes.  Two arms is NOT enough on a system.  Seriously.  I wonder if
it's mirrored and is actually just one arm.  I could max out a box like
that by pressing F10 really fast on a WRKACTJOB screen.  Size your
machine correctly before complaining about performance.


--
Justin C. Haase - Solution Engineer
IBM Certified Systems Expert - System i
Kingland Systems Corporation

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Joe Pluta
Sent: Tuesday, December 12, 2006 8:03 AM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Saving the System i: Fight Rather Than Switch

From: Lukas Beeler

On pure web serving, it might be a great spec.  For concurrent

transaction

processing, maybe not so cool.  But the iSeries will handle dozens,
if

not

100s, of users.

With the two standard 36GB Disks? The system already grinds to a halt
when im transferring CUMPTF Images from a windows server to it (FTP).

Yes, I agree that disk price is much higher on the iSeries, and out of
line compared to the actual cost now that the controllers no longer have
on-board processors.  But I also do FTP all the time and I don't see the
"grind to a halt" that you speak of.  Besides, how often do you send
these images?  How long does it take?

Joe

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