Re: ASM and IBM SVC

Michael Austin wrote:
> hpuxrac wrote:
>> On Dec 13, 9:26 pm, Michael Austin <maus..._at_firstdbasource.com>
>> wrote:
>>> Can anyone share performance impressions when using ASM with SVC or
>>> even 9i(yeah we know...) cooked file systems?
>>>
>>> We currently have the impression that SVC can only return data in
>>> 32k chunks regardless of I/O setting at the OS (Solaris, AIX and
>>> HPUX) and or storage parameters in Oracle causing additional I/O
>>> traffic. Just curious.
>>
>> Back in my old IBM days SVC was a SuperVisor Call ... what are you
>> talking about exactly?
>>
>> Is this some kind of storage? ( We are an EMC shop ... so no clue
>> ).
>
> ahh yes.. more acronyms...
>
> SVC=SAN Volume Controller.
> I am just trying to figure it out but have been told you can think of
> it as an array agnostic filer - similar to NetApp, but will work with
> any storage. Essentially this "controller (cluster)" is a gateway
> between your server and your storage whereby you can have any vendors
> arrays behind it and it presents logical LUNS to your server and it
> handles all of the I/O.
>
> Do a quick google search on IBM SVC architecture.

You also might want to read one or more of IBM's Redbooks on SVC:

• Implementing the IBM System Storage SAN Volume Controller v4.3 At the following link you can read an abstract and download the Redbook: http://www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/sg246423.html?OpenDocument (972-page PDF; 17.8MB)
• Implementing the SVC in an OEM Environment http://www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/sg247275.html?OpenDocument It offers info on using SVC with storage arrays from EMC, HDS, HP and NetApp. (286-page PDF; 9.3 MB)
• SAN Volume Controller Best Practices and Performance Guidelines http://www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/sg247521.html?Open (338-page PDF; 6.3 MB)
• Oracle and IBM storage solutions: Optimize your Oracle investment with IBM http://www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/redp4421.html?OpenDocument This Redpaper isn't dedicated to SVC, but has some info on its use. (12-page PDF; 0.2 MB)

You may also be interested in this blog from SVC's Performance Architect: http://www.ibm.com/developerworks/blogs/page/storagevirtualization

-- 
Jeroen