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тАО03-22-2009 11:01 PM
тАО03-22-2009 11:01 PM
EVA device file issue
Hi All,
We have a server with 4 FC card configured. form an EVA storage( eva 8000), storage team allocated a LUN to the server but they zoned only thru single FC card. But when we do insf -e on server , it shows two paths for the same disk. If we add two disks, it shows four and so on... May anyone please flash some light on this.
OS- 11.23 /Itanium
Eg:-
# evainfo -a -u GB | grep 10GB
/dev/rdsk/c17t7d1 5000-1FE1-500E-E780 6005-08B4-0007-1388-0002-5000-05CD-0000 10GB Ctl-B/FP-3/NonOptimized
/dev/rdsk/c17t8d1 5000-1FE1-500E-E780 6005-08B4-0007-1388-0002-5000-05CD-0000 10GB Ctl-A/FP-4/Optimized
In above , for c17 - it points to a single disks with two device driver.
We have a server with 4 FC card configured. form an EVA storage( eva 8000), storage team allocated a LUN to the server but they zoned only thru single FC card. But when we do insf -e on server , it shows two paths for the same disk. If we add two disks, it shows four and so on... May anyone please flash some light on this.
OS- 11.23 /Itanium
Eg:-
# evainfo -a -u GB | grep 10GB
/dev/rdsk/c17t7d1 5000-1FE1-500E-E780 6005-08B4-0007-1388-0002-5000-05CD-0000 10GB Ctl-B/FP-3/NonOptimized
/dev/rdsk/c17t8d1 5000-1FE1-500E-E780 6005-08B4-0007-1388-0002-5000-05CD-0000 10GB Ctl-A/FP-4/Optimized
In above , for c17 - it points to a single disks with two device driver.
3 REPLIES 3
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тАО03-22-2009 11:24 PM
тАО03-22-2009 11:24 PM
Re: EVA device file issue
EVA has two controller and both are active/active, thats why are seeing them.
Regards,
Asif Sharif
Regards,
Asif Sharif
Regards,
Asif Sharif
Asif Sharif
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тАО03-23-2009 12:05 AM
тАО03-23-2009 12:05 AM
Re: EVA device file issue
Shalom,
The EVA has redundant controllers to permit failover or load balancing.
There are two paths to every disk.
SEP
The EVA has redundant controllers to permit failover or load balancing.
There are two paths to every disk.
SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО03-23-2009 12:08 AM
тАО03-23-2009 12:08 AM
Re: EVA device file issue
does it reflect on Unix side? i hope, it should only on the side of EVA.
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