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тАО07-21-2004 05:48 AM
тАО07-21-2004 05:48 AM
How to use more than 1 fiber controller simultaneously?
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тАО07-21-2004 05:55 AM
тАО07-21-2004 05:55 AM
Re: How to use more than 1 fiber controller simultaneously?
But for FS, which has say 4 pvs, I would route two from one controller and other two from different controller. For doing load balancing, you need a product as secure path. Veritas VxVM does DMP-Dynamic Multiple pathing.
Anil
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тАО07-21-2004 06:12 AM
тАО07-21-2004 06:12 AM
Re: How to use more than 1 fiber controller simultaneously?
c0t6d0, c0t6d1, c0t6d2 and c0t6d3.
Let's also say I have an alternate path to the same disks, and their names are:
c1t6d0, c1t6d1, c1t6d2 and c1t6d3.
I would then create the VG, alternating the PV names, thus the primaries would be:
c0t6d0, c1t6d1, c0t6d2 and c1t6d3.
and my alternate links would be added later in this order:
c1t6d0, c0t6d1, c1t6d2 and c0t6d3.
And, yes you can do it after the fact by doing vgreduce's.
live free or die
harry
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тАО07-26-2004 04:26 AM
тАО07-26-2004 04:26 AM
Re: How to use more than 1 fiber controller simultaneously?
Also, does anyone have a methode for checking the utilization of the fiber cards themselves and proving that they are being maxed out? Glance/Measureware are showing the IO of the device, but that doesn't necesarily show where the limit is.
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тАО07-26-2004 04:30 AM
тАО07-26-2004 04:30 AM
Re: How to use more than 1 fiber controller simultaneously?
fcmsutil /dev/tdx stat and lot of other options.
Anil
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тАО07-26-2004 04:42 AM
тАО07-26-2004 04:42 AM
Re: How to use more than 1 fiber controller simultaneously?
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тАО07-26-2004 04:48 AM
тАО07-26-2004 04:48 AM
Re: How to use more than 1 fiber controller simultaneously?
On arryas like VA7400, there SDM commands related to this. Those like armperf and related arm* commands. Those give a lot of information on how FCs are performing.
Anil