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тАО10-17-2005 06:50 AM
тАО10-17-2005 06:50 AM
Sybase Performance Degradation after Upgrade
One of our customer upgraded Sybase 11.2 to 12.5 and started facing problem in performance. Server is D-220 with 512MB RAM.
This machine is not with me and at a remote place. Right now I am only having this much data with me. What can we look to find out the problem.
Thanks in advance,
Syam
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тАО10-17-2005 09:20 AM
тАО10-17-2005 09:20 AM
Re: Sybase Performance Degradation after Upgrade
well the first thing to ask is the OS and Sybase itself properly patched for this upgrade?
If yes, any outputs from glance/top/sar?
Alex.
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тАО10-17-2005 12:12 PM
тАО10-17-2005 12:12 PM
Re: Sybase Performance Degradation after Upgrade
Bill Hassell, sysadmin
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тАО10-17-2005 01:02 PM
тАО10-17-2005 01:02 PM
Re: Sybase Performance Degradation after Upgrade
Thanks for your replys.
I had already suggested my friend the same thing, like comparing the minimum requirements of the old version and the new version.
Do you think there would be any kernel parameter change required for the upgrade?
Or any kind of additional patches patches?
If patchaes are required which all should I apply.
Mean while I am going through the minimum requirements of Sybase. But I remember that the minimum memroy required is less than 512MB. Let me refresh myself and confirm the same. Will come back to you with my findings after 15 Hrs.
Thanks once again
Regards,
Syam
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тАО10-17-2005 01:24 PM
тАО10-17-2005 01:24 PM
Re: Sybase Performance Degradation after Upgrade
Bill Hassell, sysadmin
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тАО10-17-2005 04:21 PM
тАО10-17-2005 04:21 PM
Re: Sybase Performance Degradation after Upgrade
1) System configuration for Sybase 12.5. I feel 512 MB is too small
2) Latest patches to Sybase as well as to OS
3) This link should help you,
http://www.sybase.com/products/informationmanagement/adaptiveserverenterprise
-Arun