RE: Anybody Use 2 or More CPU at Production Env. ( SMP )

[Lawrence Farr]

I have around ten SMP machines, some Quads, rest Dual CPU machines.
I genuinely cannot remember the last time one of them crashed that
wasn't hardware related (ie physical failure, not software)

(PS I started using FreeBSD around 2.8).

Lawrence Farr
EPC Direct Limited  

 -Original Message-
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] On Behalf Of Vahric MUHTARYAN
 Sent: 18 December 2003 19:33
 To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
 Subject: Anybody Use 2 or More CPU at Production Env. ( SMP ) 
 
 Hi Everybody , 
 
 
   I watching freebsd-stable list I saw that somebody have 
 a problem
 with SMP support which they are using 4.9 . I know that some 
 improvement are
 coming with 5.x  But this problem are very important for example
 somebody when enable SMP support system start to reset itself 
 or under high
 load crashed ?! 
 
   I wonder Does anybody use SMP Support without Problem . 
 Because SMP
 is very important things ... 
 
   I wonder too What about HyperThreading ?! 
 
 
   Second How can I learn What is 1:1 and M:N thread 
 libraries ? ! How
 it's work ?! How SMP work on FreeBSD ?! 
 
 
   Because I'm using Redhat for a long time and I don't have any
 problem with it of course under high load ... 
 
 
 Thanks 
 Vahric MUHTARYAN 
 
 
 
 
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RE: problem on 1TB filesystem RAID 5 3ware

[Lawrence Farr]

Have a look at:

http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/twe/

Lawrence Farr
EPC Direct Limited 

 -Original Message-
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] On Behalf Of 
 Bruce Campbell
 Sent: 21 March 2003 14:08
 To: [EMAIL PROTECTED]
 Cc: [EMAIL PROTECTED]
 Subject: Re: problem on 1TB filesystem RAID 5 3ware
 
 
 
 The author of the twe driver, Michael Smith, confirms he
 hasn't worked on the driver for several years now.
 
 Quoting Bruce Campbell [EMAIL PROTECTED]:
  
  I openned a case with 3ware tech support and they responded:
  
  We do not support FreeBSD plus the
  current driver for FreeBSD has not been
  updated for some time to keep up with
  firmware changes. 
  
  Please try linux instead. 
  
  So I guess I will try that and see what happens.
  
  
  Quoting Simon [EMAIL PROTECTED]:
   
   I have a hard time believing that hardware implementation of
   RAID5 would corrupt files over RAID10, perhaps your 3ware
   card/its firmware is malfunctioning, but anything is possible.
   Well, I'll have to see for myself, I'm about to build RAID5 NAS
   using maxtor drives and 7500-8 3ware card.
   
   -Simon
   
   On Tue, 18 Mar 2003 08:05:36 -0500, Bruce Campbell wrote:
   
   
   
   Tested with RAID 10 instead of RAID 5, success !
   
   RAID 10 arrays tested:  6xWD200GB and 8xWD200GB both worked
   RAID 5 arrays tested: 6xWD200GB and 4xWD200GB both failed
   
   Note: 3ware lists the WD 200GB disk as Under Test. (ie 
 they have not yet
  
   given it a Compatible rating) 
   
   details of tests and the procedure to detect the failure etc at
   
  
  
 http://www.freebsd.uwaterloo.ca/twiki/bin/view/Freebsd/Backup
ServerProblem
  
  I still have to try an officially approved drive.
  
  
  
  
  This mail sent through www.mywaterloo.ca
  
  To Unsubscribe: send mail to [EMAIL PROTECTED]
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 -- 
 Bruce Campbell
 Engineering Computing
 CPH-2374B
 University of Waterloo
 (519)888-4567 ext 5889
 
 
 This mail sent through www.mywaterloo.ca
 


-- 
Bruce Campbell
Engineering Computing
CPH-2374B
University of Waterloo
(519)888-4567 ext 5889


This mail sent through www.mywaterloo.ca

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