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тАО02-20-2008 10:49 AM
тАО02-20-2008 10:49 AM
msa1000 a/a controllers
Is there not a way to have the LUNs balanced over the 2 controllers when using A/A FW?? It appears that all activity is running through only one currently.
I assume I have to do it from the command line, but anyone have any ideas, or quick links to help me out.
Mike Gentles
I assume I have to do it from the command line, but anyone have any ideas, or quick links to help me out.
Mike Gentles
2 REPLIES 2
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тАО02-21-2008 03:19 AM
тАО02-21-2008 03:19 AM
Re: msa1000 a/a controllers
Hi,
It looks like it will depend on the multipath software you have installed (MPIO or SecurePath). This is from the "migrating to active/active controllers in a windows environment". The link direct to the pdf is; http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c00841968/c00841968.pdf
-------------
"If HP StorageWorks Secure Path for Windows is installed, it can not access or manage HP
StorageWorks active/active MSA1000/1500 disk arrays."
-------------
If it is not in a windows environment, check the follwoing link for the environemnt your are in;
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManualтМй=en&cc=us&docIndexId=64179&taskId=101&prodTypeId=12169&prodSeriesId=377751
You may have already seen these if you have already upgraded your firmware.
Cheers
It looks like it will depend on the multipath software you have installed (MPIO or SecurePath). This is from the "migrating to active/active controllers in a windows environment". The link direct to the pdf is; http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c00841968/c00841968.pdf
-------------
"If HP StorageWorks Secure Path for Windows is installed, it can not access or manage HP
StorageWorks active/active MSA1000/1500 disk arrays."
-------------
If it is not in a windows environment, check the follwoing link for the environemnt your are in;
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManualтМй=en&cc=us&docIndexId=64179&taskId=101&prodTypeId=12169&prodSeriesId=377751
You may have already seen these if you have already upgraded your firmware.
Cheers
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тАО02-21-2008 06:20 AM
тАО02-21-2008 06:20 AM
Re: msa1000 a/a controllers
Hello Mike,
if you're using HPs full-featured MPIO with the MSA DSM you can change the load-balancing policy in the (hopefully) installed MPIO Manager. Furthermore you assign a LUN to a controller. AFAIK will I/O be done over both paths. If I/O is received over Controller B, but the preferred controller for a LUN is controller A, the I/O will be internally proxied to Controller A. This is called "proxy I/O". You can check this under the MSA controller CLI.
Hope this helps.
Best regards,
Patrick
if you're using HPs full-featured MPIO with the MSA DSM you can change the load-balancing policy in the (hopefully) installed MPIO Manager. Furthermore you assign a LUN to a controller. AFAIK will I/O be done over both paths. If I/O is received over Controller B, but the preferred controller for a LUN is controller A, the I/O will be internally proxied to Controller A. This is called "proxy I/O". You can check this under the MSA controller CLI.
Hope this helps.
Best regards,
Patrick
Best regards,
Patrick
Patrick
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