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April 23rd, 2013 12:00

symmaskdb empty for celerra

I'm having a problem listing SAN devices assigned to one of our Celerras.

On the Celerra I can see the devices brought in from the SAN:

[nasadmin@CSF_Celerra bin]$ nas_disk -l

id   inuse  sizeMB    storageID-devID   type  name          servers

1     y      11619  000000000028-0417   STD   root_disk     1,2

2     y      11619  000000000028-0418   STD   root_ldisk    1,2

3     y       2077  000000000028-0419   STD   d3            1,2

4     y       2077  000000000028-041A   STD   d4            1,2

5     y       2077  000000000028-041B   STD   d5            1,2

6     y      32771  000000000028-041D   STD   d6            1,2

7     y      61424  000000000028-00DC   ATA   d7            1,2  <=== (for example)

8     y      61424  000000000028-00DD   ATA   d8            1,2

9     y      61424  000000000028-00DE   ATA   d9            1,2

10    y      61424  000000000028-00DF   ATA   d10           1,2

11    y      61424  000000000028-00E0   ATA   d11           1,2

[snip]

However the symmaskdb doesn't show the assignments of these devices:

[nasadmin@CSF_Celerra bin]$ ./symmaskdb list assignment -dev 00DC

No device masking database records could be found for the specified input parameters

Moreover, the symmetrix doesn't list ANY device assigned to the WWN of the Celerra..

Here's the WWNs of the FBA cards in the Celerra:

[nasadmin@CSF_Celerra bin]$ server_sysconfig server_2 -pci

server_2 : PCI DEVICES:

On Board:

  PLX PCI-Express Switch  Controller

    0:  PLX PEX8516  IRQ: 11

Slot: 1

  Agilent QX4 Fibre Channel Controller

    0:  fcp-0  IRQ: 20 addr: 5006016041e11344

    1:  fcp-1  IRQ: 21 addr: 5006016141e11344

Here's the WWNs logged into the SAN switch:

[nasadmin@CSF_Celerra bin]$ ./symmask list logins | grep 344

5006016041e11344 Fibre NULL             NULL             7e0001 Yes    Yes

5006016141e11344 Fibre NULL             NULL             2b0001 Yes    Yes

Yet, it shows no devices assigned to either of these WWNs:

[nasadmin@CSF_Celerra bin]$ ./symmaskdb -sid 28 list devs -wwn 5006016041e11344

No device masking database records could be found for the specified input parameters

Is there anyway to repair the symmaskdb to list the SAN devices attached to the Celerra?  Please note:  I did not originally attach the storage to the Celerra; this was done by a previous administrator whom has long departed.  Thanks.

9 Legend

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20.4K Posts

April 23rd, 2013 13:00

symdev list -sid 123 -FA 16c -p 0

9 Legend

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20.4K Posts

April 23rd, 2013 12:00

using dedicated FAs where VCM_State is Disabled ?

76 Posts

April 23rd, 2013 13:00

I don't understand your question.  Sorry. 

The Celerra is wired to the SAN switch directly.  Here's one of the referenced FAs in the VSAN on the switch:

VSAN 101:

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

FCID        TYPE  PWWN                    (VENDOR)        FC4-TYPE:FEATURE

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

0x2b0001    N     50:06:01:61:41:e1:13:44 (Clariion)      scsi-fcp

                  [NS2_blade2_be1]

9 Legend

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20.4K Posts

April 23rd, 2013 13:00

as you can see VCM is disabled, that means that any device that you map to that FA will be automatically visible to the host, in this case Celerra. No masking is available on those FAs.

76 Posts

April 23rd, 2013 13:00

Okay, I will leave it alone.  My problem is that I'm used to mapping storage and being able to see it from any server connected to the SAN.  But with this Celerra, I can only see the storage mapped to it from the Celerra itself, and using nas commands, not symcli commands.  How do I list storage presented to specific FAs then without knowing the WWN or device name?

76 Posts

April 23rd, 2013 13:00

Okay, I looked at another Celerra at a different site and it states "VCM_State" is Enabled:

[root@WWTP_Celerra bin]# ./symcfg list -fa 16C -p 0 -v -sid 78 | grep -i vcm

    Device Masking (VCM) Config State    : Mixed

    VCMdb Access Restricted State        : N/A

              VCM_State(VCM)               : Enabled

And this one has no problems listing devices.

If I enable the VCM_State, will it cause any connectivity issues with storage (or would I need to reboot the Celerra I made the changes on?)

9 Legend

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20.4K Posts

April 23rd, 2013 13:00

it will have connectivity issues as you will need to mask all those devices to the FAs,  device names may get re-numbered. I have a feeling Celerra will not be very happy about that. What is the issue you are facing right now ? If you want to see what's presented to this Celerra and these FAs are dedicated to Celerra ..just look at devices mapped to those FAs.

76 Posts

April 23rd, 2013 13:00

[nasadmin@CSF_Celerra bin]$ ./symcfg list -fa 8A -p 0 -v | grep -i vcm

    Device Masking (VCM) Config State    : Mixed

    VCMdb Access Restricted State        : N/A

              VCM_State(VCM)               : Disabled

76 Posts

April 23rd, 2013 13:00

Thanks as always dynamox.

9 Legend

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April 23rd, 2013 14:00

you bet

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