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тАО01-14-2010 05:21 AM
тАО01-14-2010 05:21 AM
wanted to know if any of you can help me for a command which are the disks that are unsed (EMC).
according to my supervisor multiple disks found unsed, but they are.
ioscan command with the disk can see the disks but how do I know if they are unused?
Solved! Go to Solution.
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тАО01-14-2010 05:32 AM
тАО01-14-2010 05:32 AM
Re: Disk unused
Documentation is the only sure way to know if a physical disk is "used" or not.
Consider that you can 'vgexport' a volume group. The physical disk aren't "used" by the server, but they could be 'vgimport'ed elsewhere.
Next, a physical disk might be used as a raw device.
From a SAN perspective, a physical disk might not be assigned to any server, but it could still contain valuable data.
Documentation is critical.
Regards!
...JRF...
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тАО01-14-2010 05:34 AM
тАО01-14-2010 05:34 AM
Re: Disk unused
# symvg list
rgs,
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тАО01-14-2010 05:36 AM
тАО01-14-2010 05:36 AM
Re: Disk unused
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тАО01-14-2010 05:37 AM
тАО01-14-2010 05:37 AM
Re: Disk unused
Strongly agree!
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
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тАО01-14-2010 05:43 AM
тАО01-14-2010 05:43 AM
Re: Disk unused
But could be used by database or virtual machines without a volume manager!
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
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тАО01-14-2010 05:49 AM
тАО01-14-2010 05:49 AM
SolutionSecond, if these LUNS are not used in this server, you need to unpresent them from this server in EMC. Then you need to check in EMC if these LUNs have been presented to another server and are being used there.
These have commands to cross reference EMC LUNs and HP-UX disks.
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1087725
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1290435
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тАО01-14-2010 05:50 AM
тАО01-14-2010 05:50 AM
Re: Disk unused
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тАО01-14-2010 05:57 AM
тАО01-14-2010 05:57 AM
Re: Disk unused
Nor sure what you are trying to say here. Is this server a virtual machine or do you have virtual machines in this server? Also as Torsten asked do you have databases that may be using raw volumes? (oracle, RAC, sybase etc)
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тАО01-14-2010 06:02 AM
тАО01-14-2010 06:02 AM
Re: Disk unused
In the SAP server is installed, if any database but is assigned to another VG (LVM).