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Operating System - Tru64 Unix
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Problems getting new LUNs under OS control (tru64 4.0g)

Telia BackOffice
Valued Contributor

Problems getting new LUNs under OS control (tru64 4.0g)

Hi There

I am trying to migrate from one SAN cabinet (EMC DMX2000) to another SAN cabinet (EMC DMX3). All of this on Tru64 4.0g (1530) using an KGPSA-CA adapter.


This is causing me some problems. First of, the new cabinet was assigned an target of 9 causing a message in /var/adm/messages

Nov 25 09:27:37 mystix vmunix: emx0: emx_assign_fcp_id: nport at DID 0x3d9f00 as
signed tgt id 9 - out of range for CAM

After reading some documentations, I found out that CAM on tru64 4.0g only could address 8 targets, but that I could remap them arbitrarily using emxmgr. So I did (and assigned it to bus 16, target 3).

I then got

thosan@mystix|ttyp2:/usr/users/thosan$ sudo scu show edt

CAM Equipment Device Table (EDT) Information:

Device: BD018122C9 Bus: 1, Target: 0, Lun: 0, Type: Direct Access
Device: BD018122C9 Bus: 1, Target: 1, Lun: 0, Type: Direct Access
Device: BD018122C9 Bus: 1, Target: 2, Lun: 0, Type: Direct Access
Device: BD018122C9 Bus: 1, Target: 3, Lun: 0, Type: Direct Access
Device: CD-224E Bus: 2, Target: 0, Lun: 0, Type: Read-Only Direct Access
Device: SYMMETRIX Bus: 16, Target: 0, Lun: 0, Type: Direct Access
Device: SYMMETRIX Bus: 16, Target: 0, Lun: 1, Type: Direct Access
Device: SYMMETRIX Bus: 16, Target: 0, Lun: 2, Type: Direct Access
Device: SYMMETRIX Bus: 16, Target: 0, Lun: 3, Type: Direct Access
Device: SYMMETRIX Bus: 16, Target: 0, Lun: 4, Type: Direct Access
Device: SYMMETRIX Bus: 16, Target: 3, Lun: 0, Type: Array Controller

But this puzzles me. My new cabinet comes up as an taget of type: Array Controller, whereas my old cabinet does not show in the list, but instead I get the 5 luns that I have presnted as type Direct Access. According to the storage guys they have done what they could to present the new and old cabinet in the same way.

Further more:

scu> sbtl 16 3
Device: SYMMETRIX, Bus: 16, Target: 3, Lun: 0, Type: Array Controller
scu> show luns

Reported LUN's Supported by Device [16/3/0] (SYMMETRIX):

Logical Unit Entry #1: 00 35 00 00 00 00 00 00
Logical Unit Entry #2: 00 46 00 00 00 00 00 00
Logical Unit Entry #3: 00 65 00 00 00 00 00 00
Logical Unit Entry #4: 01 14 00 00 00 00 00 00
Logical Unit Entry #5: 01 21 00 00 00 00 00 00

scu> sbtl 16 0
Device: SYMMETRIX, Bus: 16, Target: 0, Lun: 0, Type: Direct Access
scu> show luns

Reported LUN's Supported by Device [16/0/0] (SYMMETRIX):

Logical Unit Entry #1: 00 00 00 00 00 00 00 00
Logical Unit Entry #2: 00 01 00 00 00 00 00 00
Logical Unit Entry #3: 00 02 00 00 00 00 00 00
Logical Unit Entry #4: 00 03 00 00 00 00 00 00
Logical Unit Entry #5: 00 04 00 00 00 00 00 00

scu>

Please help. What part of the puzzle is missing here?! Some of you probably can tell me in a second why and how to fix :-)

Br. Thomas