ds800 only one path is used


 
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Operating Systems AIX ds800 only one path is used
# 8  
Old 07-22-2010
Thank you, you are welcome ^^
I just read in the documentation, that when you activate round_robin, the priority is not important anymore.
# 9  
Old 07-22-2010
zaxxon one more question: If I change the policy to round-robin will it give me some write performance? or it doesn't matter?
# 10  
Old 07-22-2010
I can't test it here currently but if 2 instead of 1 path take part in I/O it should give you more bandwith, yes. Best is to try it out.
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# 11  
Old 07-23-2010
Thanks I will try it today ;-)

---------- Post updated at 03:25 AM ---------- Previous update was at 01:48 AM ----------

zaxxon I have changed policy to round_robin and everything went quite well ;-) you are friend in need :-)) thanks a lot
# 12  
Old 07-23-2010
Your welcome - thanks for letting us know about the result^^
# 13  
Old 07-25-2010
zaxxon if I use SDD instead of MPIO will it be better in performance?
# 14  
Old 07-26-2010
Sorry I do not know SDD. I only have some experience with MPIO, Powerpath and Datacore's Cambex.

---------- Post updated at 10:44 AM ---------- Previous update was at 10:31 AM ----------

I found this link in a thread on the DerKeiler mailing list:
http://www-01.ibm.com/support/docvie...S7000303&aid=1

At least you can have a look there which features SDD offers. Hopefully another unix.com member can tell about the difference why to use MPIO or SDD and share some experience.
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