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тАО10-18-2005 12:27 AM
тАО10-18-2005 12:27 AM
how to use and create pvlink
we are going to attatch an EMC Clariion to a HP-UX L2000 server with a fiber HBA. I've been told that we're gonna see the disks assigned from the Clariion twice and to use pvlink. I've never used pvlink and have browsed this forum and searched the google, but none have given me a exact answer how to create and use pvlink.
I've also read the man page for vgcreate. There it says that you only define both pvpaths in the vgcreate command and the pvpath mentioned first will be the primary path. Is it that simple? Or am I missing something?
I have to be shure before we connect to the Clariion because we're gonna move some filesystems to the Clariion and therefore I have no time to loose in trying and failing.
Thanks in advance.
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тАО10-18-2005 12:49 AM
тАО10-18-2005 12:49 AM
Re: how to use and create pvlink
Dave
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тАО10-18-2005 12:51 AM
тАО10-18-2005 12:51 AM
Re: how to use and create pvlink
It is that simple... when you add the second pv it will show up as an alternate and will be listed below the primary path. I also like to alternate primary paths to try and balance the i/o, unless you are using EMC PowerPath.
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тАО10-18-2005 01:12 AM
тАО10-18-2005 01:12 AM
Re: how to use and create pvlink
I also saw in another posting about pvlink that there where some parameters to tune on. Where do I find these. Here are two parameters that's important to a failover situation:
Linkdown-tmo was set to 60 and no_device_delay was set to 30.
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тАО10-18-2005 01:48 AM
тАО10-18-2005 01:48 AM