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тАО02-22-2005 08:04 PM
тАО02-22-2005 08:04 PM
LUSE's distributed on different AG's - performance
Luciano (luciano.garbolino@hp.com)
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тАО03-03-2005 09:43 AM
тАО03-03-2005 09:43 AM
Re: LUSE's distributed on different AG's - performance
Yes, distributing the LDEVs within a LUSE volume over multiple array groups will allow for better performance over the backend of the array.
Of course you can only use LDEVs (max 36) within the same control unit (CU) for a LUSE volume, so whether or not you get a good even spread of I/O is dependant on how the array has been installed and configured in the first place.
Whether or not the performance benefit is measurable, well, with the current tools available, that's a different story. The XPPT analysis tool (which creates a report from an exported Performance Advisor database) is currently the best option I think.
Anything that balances I/O across the FC-AL disk loops on the backend of the array is generally a good idea. YMMV.
Cheers, Maurice Clark.
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тАО03-04-2005 12:41 PM
тАО03-04-2005 12:41 PM
Re: LUSE's distributed on different AG's - performance
Curt
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тАО03-07-2005 08:53 PM
тАО03-07-2005 08:53 PM
Re: LUSE's distributed on different AG's - performance
Luciano
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тАО03-07-2005 08:56 PM
тАО03-07-2005 08:56 PM