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тАО06-09-2006 02:33 AM
тАО06-09-2006 02:33 AM
Re: Any EVA admin's out there?
When building volume groups, just add all 8 paths to the VG. The first one added will be the "primary" path.
If you want to manually "load balance" among controllers, you can alternate between your two controllers as you create VG's.
You can switch the LUN used as the primary path by using the pvchange command.
-tjh
If you want to manually "load balance" among controllers, you can alternate between your two controllers as you create VG's.
You can switch the LUN used as the primary path by using the pvchange command.
-tjh
I learn something new everyday. (usually because I break something new everyday)
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тАО06-09-2006 11:38 AM
тАО06-09-2006 11:38 AM
Re: Any EVA admin's out there?
appreciate the replies...thanks
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тАО01-17-2007 08:18 AM
тАО01-17-2007 08:18 AM
Re: Any EVA admin's out there?
One easy way to get all the PVLINKS defined in the volume group is to create the volume group using 1 device, then export it and import it. The import will find all of the alternate links and add them to the volume group. The only problem with this is that you can't select which path is active, but at least it's an easy way to determine all the paths. Then you can manually switch them if you want to load balance.
On an EVA8000, with two fabrics (2 switches and 2 FCAs on the host, one connected to each switch), you should see 8 paths per LUN. You have two host ports per EVA controller going to one switch x 2 controllers = 4 paths per fabric, and 2 host ports per controller going to the other switch, so 8 paths total.
On an EVA8000, with two fabrics (2 switches and 2 FCAs on the host, one connected to each switch), you should see 8 paths per LUN. You have two host ports per EVA controller going to one switch x 2 controllers = 4 paths per fabric, and 2 host ports per controller going to the other switch, so 8 paths total.
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