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тАО09-26-2006 07:38 AM
тАО09-26-2006 07:38 AM
EVA4000 autopath (secure path for active-active) LVM device file
I am accessing an EVA4000 from HP-UX 11.23 and using "secure path for active-active V3.0F SP2," i.e., the autopath command. I have four paths to my LUN. I can see, with ioscan, all four hardware paths and they each have device files. If I were not using any multi-pathing software, then I would just use those device files as pv links in the LVM group.
I see that autopath has assigned "Virtual Device File : /hpap/dsk/hpap0" but I understand that I am not to use that for LVM.
How do I access this LUN with LVM without pv links? Thanks. I am assuming that, if I use pv links, that the autopath monitor will not be able to fully manage the connection. Maybe that is an incorrect assumption.
Regards,
Darren
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тАО09-26-2006 10:53 PM
тАО09-26-2006 10:53 PM
Re: EVA4000 autopath (secure path for active-active) LVM device file
Just pick one of the direct paths to the LUN - SecurePath should take care of loadbalancing that to the other 3 paths (just like powerpath from emc). You can actually add the other paths to your VG as well if you like.
HTH
I am an HPE Employee
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тАО09-26-2006 11:19 PM
тАО09-26-2006 11:19 PM
Re: EVA4000 autopath (secure path for active-active) LVM device file
you can use the virtual device provided by "spmgr display" output. Load balancing will be taken care by securepath.
regards
Manoharan
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тАО09-27-2006 12:18 AM
тАО09-27-2006 12:18 AM
Re: EVA4000 autopath (secure path for active-active) LVM device file
Manoharan is talking about SecurePath for active/passive arrays (i.e. EVA3000/5000). As you no doubt know, you don't have a spmgr display command.
HTH
Duncan
I am an HPE Employee
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тАО09-27-2006 12:43 AM
тАО09-27-2006 12:43 AM
Re: EVA4000 autopath (secure path for active-active) LVM device file
sorry I was not aware of that. thanks duncan.
regards
Manoharan
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тАО09-27-2006 02:55 AM
тАО09-27-2006 02:55 AM
Re: EVA4000 autopath (secure path for active-active) LVM device file
Regards,
Darren
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тАО02-09-2007 06:48 AM
тАО02-09-2007 06:48 AM
Re: EVA4000 autopath (secure path for active-active) LVM device file
autopath command is used to set up load balencing or prefered paths and display your paths status.
If you use SAM it will only show you one device and do the right thing when creating PVs VGs and LVs.
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тАО02-09-2007 07:26 AM
тАО02-09-2007 07:26 AM