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тАО03-01-2005 06:56 AM
тАО03-01-2005 06:56 AM
XP12000 and Base-VxVM - What Path Protection fo You use?
Thanks!
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тАО03-01-2005 11:30 PM
тАО03-01-2005 11:30 PM
Re: XP12000 and Base-VxVM - What Path Protection fo You use?
However, I haven't done this myself, so...
Give it a try, and do let us know how it works.
Cheers,
Vince
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тАО03-02-2005 12:15 AM
тАО03-02-2005 12:15 AM
Re: XP12000 and Base-VxVM - What Path Protection fo You use?
Anyone know any tricks - kernel or autopath tunables perhaps ?
I am attaching a syslog snippet at the instant the cable was pulled and the server panic'd.
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тАО03-02-2005 12:16 AM
тАО03-02-2005 12:16 AM
Re: XP12000 and Base-VxVM - What Path Protection fo You use?
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тАО03-07-2005 04:39 AM
тАО03-07-2005 04:39 AM
Re: XP12000 and Base-VxVM - What Path Protection fo You use?
panic: assertion failed (lp != NULL) at line 7627 in /ux/core/kern/common/wsio/scsi_ctl.c
Description of the problem:
Panic in SCSI code "assertion failed (lp != NULL)" due to the fact that VxVM is doing I/O on a closed device.
Patches:
PHKL_29981 - HPUX 11.11
PHKL_31245 - HPUX 11.23
Apparently, it's a VxVM issue, not an AutoPath/SecurePath issue, though, as you have noted, SecurePath/EVA doesn't exhibit the problem.
Please apply the appropriate patch, and let us know if it fixes the problem.
Cheers,
Vince
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тАО03-07-2005 04:58 AM
тАО03-07-2005 04:58 AM
Re: XP12000 and Base-VxVM - What Path Protection fo You use?
Apparently, Veritas suggests using the ASL (Array Support Library) with XPs. Here's a link to their site where you can download it, if you haven't already:
http://seer.support.veritas.com/docs/272356.htm
-Vince
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тАО03-07-2005 08:38 AM
тАО03-07-2005 08:38 AM
Re: XP12000 and Base-VxVM - What Path Protection fo You use?
We actually have the VxVM patch albeit the latest one - PHKL_30756. During cable pull tests VxVM just does not jive well with AutoPath's gyrations of failing over I/O to the other surviving path -- possibly because its behaviour is different from SecurePath/EVA -- which maintains the HP-UX disk device while AutoPath (SecurePath/XP) does not.
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тАО03-07-2005 02:04 PM
тАО03-07-2005 02:04 PM
Re: XP12000 and Base-VxVM - What Path Protection fo You use?
I highly suggest that you call in a support ticket, and I'm sure the folks there can find out what the problem is, and either give you an existing patch that fixes the problem, or fix the code and issue you a patch to fix your system.
Of course I'm assuming that you're carrying support - something else that's highly suggested - for just this type of situation. Many products come with 1st year support or similar, so you may be covered even if you don't normally carry support because it's a new installation.
I hope you get this fixed quickly,
Vince
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тАО03-08-2005 12:51 AM
тАО03-08-2005 12:51 AM
Re: XP12000 and Base-VxVM - What Path Protection fo You use?
HP came back to us ans imply stated that SecurePath 3.0E (the XP flavour OR autopath) simply does not support VxVM. It is in the release notes.
I think the problem from our perception are the varying statements of support at various weblinks/documents regarding SecurePath. In one there are claims SecurePath supports both EVA and XP and supports VxVM - but it tuens out only SecurePatt/EVA is supported whilst SecurePath/XP or AutoPath is not.