topic Re: Understanding LUNs Fibre Channel Names in ONTAP Discussions

Understanding LUNs Fibre Channel Names

DRUMDUDESAN — Thu, 05 Jun 2025 06:13:44 GMT

Hi,

I do not understand the name change in LUN Assignments. What stands out to me are the odd balls.

What do they represent and used for?

Why are they skewed from the consistency of the others?

Odd Balls

BROCSANSW01A:4.126L63 - BROCSANSW01B:0.126L63 - - -

BROCSANSW01A:4.126L64 - BROCSANSW01B:0.126L64 - - -

and

BROCSANSW01B:8.126L64 - BROCSANSW01A:12.126L64 - - -

BROCNA01>storage show disk -p

BROCSANSW01B:4.126L49 - BROCSANSW01A:0.126L49 - - -

BROCSANSW01B:4.126L50 - BROCSANSW01A:0.126L50 - - -

BROCSANSW01B:4.126L51 - BROCSANSW01A:0.126L51 - - -

BROCSANSW01B:4.126L52 - BROCSANSW01A:0.126L52 - - -

BROCSANSW01B:4.126L53 - BROCSANSW01A:0.126L53 - - -

BROCSANSW01B:4.126L54 - BROCSANSW01A:0.126L54 - - -

BROCSANSW01B:4.126L55 - BROCSANSW01A:0.126L55 - - -

BROCSANSW01B:4.126L56 - BROCSANSW01A:0.126L56 - - -

BROCSANSW01B:0.126L57 - BROCSANSW01A:4.126L57 - - -

BROCSANSW01B:0.126L58 - BROCSANSW01A:4.126L58 - - -

BROCSANSW01B:0.126L59 - BROCSANSW01A:4.126L59 - - -

BROCSANSW01B:0.126L60 - BROCSANSW01A:4.126L60 - - -

BROCSANSW01B:0.126L61 - BROCSANSW01A:4.126L61 - - -

BROCSANSW01B:0.126L62 - BROCSANSW01A:4.126L62 - - -

BROCSANSW01A:4.126L63 - BROCSANSW01B:0.126L63 - - -

BROCSANSW01A:4.126L64 - BROCSANSW01B:0.126L64 - - -

BROCNA02>

BROCSANSW01A:8.126L49 - BROCSANSW01B:12.126L49 - - -

BROCSANSW01A:8.126L50 - BROCSANSW01B:12.126L50 - - -

BROCSANSW01A:8.126L51 - BROCSANSW01B:12.126L51 - - -

BROCSANSW01A:8.126L52 - BROCSANSW01B:12.126L52 - - -

BROCSANSW01A:8.126L53 - BROCSANSW01B:12.126L53 - - -

BROCSANSW01A:8.126L54 - BROCSANSW01B:12.126L54 - - -

BROCSANSW01A:8.126L55 - BROCSANSW01B:12.126L55 - - -

BROCSANSW01A:8.126L56 - BROCSANSW01B:12.126L56 - - -

BROCSANSW01A:12.126L57 - BROCSANSW01B:8.126L57 - - -

BROCSANSW01A:12.126L58 - BROCSANSW01B:8.126L58 - - -

BROCSANSW01A:12.126L59 - BROCSANSW01B:8.126L59 - - -

BROCSANSW01A:12.126L60 - BROCSANSW01B:8.126L60 - - -

BROCSANSW01A:12.126L61 - BROCSANSW01B:8.126L61 - - -

BROCSANSW01A:12.126L62 - BROCSANSW01B:8.126L62 - - -

BROCSANSW01A:12.126L63 - BROCSANSW01B:8.126L63 - - -

BROCSANSW01B:8.126L64 - BROCSANSW01A:12.126L64 - - -

BROCNA01> disk show -n

DISK OWNER POOL SERIAL NUMBER HOME

------------ ------------- ----- ------------- -------------

BROCSANSW01B:4.126L49 Not Owned NONE 6001438005DED8FF0000500003480000

BROCSANSW01B:4.126L50 Not Owned NONE 6001438005DED8FF00005000034C0000

BROCSANSW01B:4.126L51 Not Owned NONE 6001438005DED8FF0000500003500000

BROCSANSW01B:4.126L52 Not Owned NONE 6001438005DED8FF0000500003540000

BROCSANSW01B:4.126L53 Not Owned NONE 6001438005DED8FF0000500003580000

BROCSANSW01B:4.126L54 Not Owned NONE 6001438005DED8FF00005000035C0000

BROCSANSW01B:4.126L55 Not Owned NONE 6001438005DED8FF0000500003600000

BROCSANSW01B:4.126L56 Not Owned NONE 6001438005DED8FF0000500003640000

BROCSANSW01B:0.126L57 Not Owned NONE 6001438005DED8FF0000500003900000

BROCSANSW01B:0.126L58 Not Owned NONE 6001438005DED8FF0000500003A00000

BROCSANSW01B:0.126L59 Not Owned NONE 6001438005DED8FF0000500003A40000

BROCSANSW01B:0.126L60 Not Owned NONE 6001438005DED8FF0000500003A80000

BROCSANSW01B:0.126L61 Not Owned NONE 6001438005DED8FF0000500003AC0000

BROCSANSW01B:0.126L62 Not Owned NONE 6001438005DED8FF0000500003B00000

BROCSANSW01A:4.126L63 Not Owned NONE 6001438005DED8FF0000500003B40000

BROCSANSW01A:4.126L64 Not Owned NONE 6001438005DED8FF0000500003B80000

Environment:

v3140A

NetApp Release 8.0.1 7-Mode

Brocade/HP Switch

LUNs presented from HPEVA

Thanks

Jeff

Re: Understanding LUNs Fibre Channel Names

bsti — Mon, 17 Dec 2012 18:30:10 GMT

https://library.netapp.com/ecm/ecm_get_file/ECMP1113755

Page 37

Describes the LUN naming for V-series LUNs.

The name breaks down like this:

[switch name]:[port].[Device ID][LUN-id]

Example: BROCSANSW01A:4.126L63

Port 4 on switch: BROCSANSW01A. Device ID 126, LUN ID 63.

The only difference I see in the LUNs you listed as oddballs is it lists them in the reverse order as the others. Path 1 is normally switch B for your other LUNs, but it's Switch A for LUNs 63 and 64. I don't think this is an issue and I'm not sure I'd worry about it.

Re: Understanding LUNs Fibre Channel Names

DRUMDUDESAN — Mon, 17 Dec 2012 22:39:18 GMT

Thanks exactly what I was trying to find. The Library is still down for Canada anyway. All the ducks are in line after I assign the LUNs and add to aggr.

BROCSANSW01B:4.126L49 BROCNA01 (151762019)	Pool0 6001438005DED8FF0000500003480000 BROCNA01 (151762019)
BROCSANSW01B:4.126L50 BROCNA01 (151762019)	Pool0 6001438005DED8FF00005000034C0000 BROCNA01 (151762019)
BROCSANSW01B:4.126L51 BROCNA01 (151762019)	Pool0 6001438005DED8FF0000500003500000 BROCNA01 (151762019)
BROCSANSW01B:4.126L52 BROCNA01 (151762019)	Pool0 6001438005DED8FF0000500003540000 BROCNA01 (151762019)
BROCSANSW01B:4.126L53 BROCNA02 (151762144)	Pool0 6001438005DED8FF0000500003580000 BROCNA02 (151762144)
BROCSANSW01B:4.126L54 BROCNA02 (151762144)	Pool0 6001438005DED8FF00005000035C0000 BROCNA02 (151762144)
BROCSANSW01B:4.126L55 BROCNA02 (151762144)	Pool0 6001438005DED8FF0000500003600000 BROCNA02 (151762144)
BROCSANSW01B:4.126L56 BROCNA02 (151762144)	Pool0 6001438005DED8FF0000500003640000 BROCNA02 (151762144)
BROCSANSW01B:0.126L58 BROCNA01 (151762019)	Pool0 6001438005DED8FF0000500003A00000 BROCNA01 (151762019)
BROCSANSW01B:0.126L59 BROCNA01 (151762019)	Pool0 6001438005DED8FF0000500003A40000 BROCNA01 (151762019)
BROCSANSW01B:0.126L60 BROCNA01 (151762019)	Pool0 6001438005DED8FF0000500003A80000 BROCNA01 (151762019)
BROCSANSW01B:0.126L57 BROCNA01 (151762019)	Pool0 6001438005DED8FF0000500003900000 BROCNA01 (151762019)
BROCSANSW01B:0.126L61 BROCNA02 (151762144)	Pool0 6001438005DED8FF0000500003AC0000 BROCNA02 (151762144)
BROCSANSW01B:0.126L62 BROCNA02 (151762144)	Pool0 6001438005DED8FF0000500003B00000 BROCNA02 (151762144)
BROCSANSW01B:0.126L63 BROCNA02 (151762144)	Pool0 6001438005DED8FF0000500003B40000 BROCNA02 (151762144)
BROCSANSW01B:0.126L64 BROCNA02 (151762144)	Pool0 6001438005DED8FF0000500003B80000 BROCNA02 (151762144)