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тАО08-13-2008 11:09 AM
тАО08-13-2008 11:09 AM
Polyserve and san storage
Each host in a perfect world see's 8 paths to each lun.
Then....a storage controller fails.
Controller gets replaced (diff WWN)
The linux hosts now see the available devices in /proc/scsi/scsi however polyserve will not use them. They show up as "Importable" devices but essentially they are the same but with a different path. Will performing the import function wipe everything out? or is there a config change I need to make somewhere for polyserve to use these paths again?
Thanks
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тАО08-13-2008 11:41 AM
тАО08-13-2008 11:41 AM
Re: Polyserve and san storage
here is the polyserve manuals page:
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManualтМй=en&cc=US&prodSeriesId=3435148&prodTypeId=18964&refresh=true
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тАО08-13-2008 11:46 AM
тАО08-13-2008 11:46 AM
Re: Polyserve and san storage
could you check the matrix.log and matrix server service event.log for possible messages on the path problems pls?
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тАО08-13-2008 11:46 AM
тАО08-13-2008 11:46 AM
Re: Polyserve and san storage
Ya got another link I can try??
In the meantime, here's some additional info....
When I try to perform a "sandiskinfo" I get the following error:
:ERROR:Unable to collect vendor data for /dev/psd/psd4 due to device open error: Operation not permitted.
It's obviously looking down a path that no longer exists due to the controller swap that needs to be updated.
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тАО08-13-2008 11:54 AM
тАО08-13-2008 11:54 AM
Re: Polyserve and san storage
http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c01519283/c01519283.pdf
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тАО08-13-2008 11:55 AM
тАО08-13-2008 11:55 AM
Re: Polyserve and san storage
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тАО08-13-2008 12:51 PM
тАО08-13-2008 12:51 PM
Re: Polyserve and san storage
.
.
.
been reading the manual....I don't see any "warnings" about importing disks. However, it doesn't make any mention about them being identical disks on a different path.
In the SAN maintenance section it describes swapping out switches but nothing about storage controllers
I'm leaning down the path of "mx config mp" so far...
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тАО08-13-2008 02:29 PM
тАО08-13-2008 02:29 PM
Re: Polyserve and san storage
http://www.dba-oracle.com/real_application_clusters_rac_grid/polyserve_cfs.htm