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тАО12-14-2004 06:43 AM
тАО12-14-2004 06:43 AM
Thanks,
Solved! Go to Solution.
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тАО12-14-2004 06:49 AM
тАО12-14-2004 06:49 AM
Re: How to view I/O down the various paths to disks?
Mario
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тАО12-14-2004 07:14 AM
тАО12-14-2004 07:14 AM
Re: How to view I/O down the various paths to disks?
Thanks,
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тАО12-14-2004 07:20 AM
тАО12-14-2004 07:20 AM
Re: How to view I/O down the various paths to disks?
I would imagine that what you're looking from should be available from the SAN's point of view.
Mario
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тАО12-14-2004 07:29 AM
тАО12-14-2004 07:29 AM
Re: How to view I/O down the various paths to disks?
Thanks,
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тАО12-14-2004 08:45 AM
тАО12-14-2004 08:45 AM
Re: How to view I/O down the various paths to disks?
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тАО12-14-2004 08:47 AM
тАО12-14-2004 08:47 AM
Re: How to view I/O down the various paths to disks?
thanks,
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тАО12-14-2004 10:37 AM
тАО12-14-2004 10:37 AM
Re: How to view I/O down the various paths to disks?
Ken,
"hwmgr get attribute -category disk", will show you all the paths and the associated IO.
__ Johan.
_JB_
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тАО12-14-2004 02:41 PM
тАО12-14-2004 02:41 PM
SolutionOf course you can monitor that!
Use hwmgr like Johan mentions and you will see 'wds' entries for each bus. Those are 64 bytes each.
A single shot will give you an indication of the balance since boot.
I'll attach a script with sample output that you can run before and after a test to gather the counters at that time. Then run the script once more to evalutate the results.
Note though that Tru64 does NOT balance just for the heck of it. It only balances if that is deemed useful. It will first attempt to issue the IO on a 'local' adapter. If that is not available, or too busy then it will look for a 'NEAR' adapter to use. (important in a GS1280. In a GS320 all remote QBBs have effectively the same distance.)
So if you run from one processor, and just do read after read, you'll see just once channel being used.... and that's just fine.
hth,
Hein.