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тАО06-11-2010 10:03 PM
тАО06-11-2010 10:03 PM
What is the difference between Vdisk and LUN? How will come to know that which physical disks are presents in a perticular LUN?
Solved! Go to Solution.
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тАО06-11-2010 10:35 PM
тАО06-11-2010 10:35 PM
Re: Vdisk and LUN
See the below links
http://en.wikipedia.org/wiki/Logical_Unit_Number
http://en.wikipedia.org/wiki/Vdisk
suraj
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тАО06-11-2010 11:12 PM
тАО06-11-2010 11:12 PM
Solutionvdisk is a term used for LUN in EVA.
LUN - is a storage volume which is presented to any OS from any storage.
LUN = logical unit Number.
When we check from OS side, the assigned LUNS will show as physical volumes connected to the server.
If you want to see which disk is part of which LUN, you need to have storage access. A storage administrator can tell that. Normally the LUN will be a RAID volume which is created with a number of disks.
If you are using EVA, from CM EVA you can see that.
Regards,
Sooraj
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тАО06-11-2010 11:46 PM
тАО06-11-2010 11:46 PM
Re: Vdisk and LUN
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тАО06-11-2010 11:53 PM
тАО06-11-2010 11:53 PM
Re: Vdisk and LUN
>>What is wwid?
Is it means WWN no?
Suraj
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тАО06-12-2010 12:21 AM
тАО06-12-2010 12:21 AM
Re: Vdisk and LUN
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тАО06-12-2010 12:32 AM
тАО06-12-2010 12:32 AM
Re: Vdisk and LUN
WWN -> World Wide Name
WWID -> World Wide Identifier
These are nothing but a unique ID's associated with your FC/SAS... targets.
Each WWN is an 8-byte number derived from an IEEE OUI (for the first 3 bytes)
and vendor-supplied information. The 64-bit address assigned to a Host
Adapter Bus (HBA) in a Fibre Channel network. Assigned by the vendor at the
time of manufacture, it is similar to the MAC address in an Ethernet network.
Related Links -
http://en.wikipedia.org/wiki/World_Wide_Name
http://www.topbits.com/world-wide-name-wwn.html
Hope this helps.
Regards,
Murali