LUN masking

LUN masking is a further constraint added to zoning, subdividing access to the port so that only LUNs authorized to access a specific server can access the corresponding port.

LUN masking is a further constraint added to LUN zoning to ensure that only devices authorized to access a specific server can access the corresponding port.

A logical unit number (LUN) is a unique identifier that designates individual hard disk devices or grouped devices for address by a protocol associated with a SCSI, iSCSI, Fibre Channel (FC) or similar interface.  LUNs are central to the management of block storage arrays shared over a storage area network (SAN).

LUN masking subdivides access to a given port. Then, even if several LUNs are accessed through the same port, the server masks can be set to limit each server's access to the appropriate LUNs. LUN masking is typically conducted at the host bus adapter (HBA) or switch level.

 

See also: virtual SAN, partition, storage resource management (SRM), storage provisioning, virtual provisioning, SAN file system, RAID (redundant array of independent disks)

This was first published in May 2011

Continue Reading About LUN masking

Glossary

'LUN masking' is part of the:

View All Definitions

Dig deeper on Storage Network Virtualization

Pro+

Features

Enjoy the benefits of Pro+ membership, learn more and join.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchSolidStateStorage

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

SearchStorage

SearchServerVirtualization

SearchVirtualDesktop

Close