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SAN Disk Appearing double in AIX

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Operating Systems AIX SAN Disk Appearing double in AIX
# 15  
Old 08-21-2013
The SAN Switch I just bought a used one is IBM 2005 H16

In the zone administration of it , default ip http://10.1.1.70 admin/password ; I can see three options Alias , Zone , Zone Config.

Can someone help me find a document for zoning ?



this is the config it came with

Code:
The Effective Configuration is:  productionCfg

The Member(s) of the Effective Configuration is (are):

Zone:                 DR_TEMP_ZONE        20:01:00:0e:11:14:82:8f
                                          20:04:00:0e:11:14:82:8f
                                          20:00:00:24:ff:07:1b:94
                                          
Zone:                 dcbackup02prd_zone_0        21:00:00:e0:8b:9b:91:c2
                                                  21:00:00:1b:32:05:7e:f8
                                                  50:05:07:63:0f:42:57:01
                                                  50:05:07:63:0f:42:57:02
                                                  50:05:07:63:0f:42:57:03
                                                  50:05:07:63:0f:42:57:04
                                                  50:05:07:63:0f:42:57:05
                                                  50:05:07:63:0f:42:57:06
                                                  50:05:07:63:0f:42:57:07
                                                  
Zone:                 dcbackup02prd_zone_1        21:00:00:e0:8b:9b:c2:bd
                                                  21:00:00:1b:32:05:7f:f8
                                                  50:05:07:63:0f:42:57:08
                                                  50:05:07:63:0f:42:57:09
                                                  50:05:07:63:0f:42:57:0a
                                                  

Currently effective configuration on the Fabric:  productionCfg

Zone DB Max size for the fabric - 1048576 bytes

Zone DB to be committed - 0 bytes

You have defined the following zoning database:

Aliases:
        DRBACKUP01PRD:
              20:00:00:24:ff:07:1b:94

        DR_TAPE1:
              Bdt Büro- Und Datentechnik GmbH & Co. Kg 20:01:00:0e:11:14:82:8f

        DR_TAPE2:
              Bdt Büro- Und Datentechnik GmbH & Co. Kg 20:04:00:0e:11:14:82:8f

        backup520_fcs2_10:
              Emulex Corporation 10:00:00:00:c9:46:4c:cb

        backup520_fcs2_20:
              Emulex Corporation 20:00:00:00:c9:46:4c:cb

        dcbackup02prd_0:
              Qlogic Corp. 21:00:00:e0:8b:9b:91:c2

        dcbackup02prd_1:
              Qlogic Corp. 21:00:00:e0:8b:9b:c2:bd

        dcbackup05prd:
              21:00:00:1b:32:05:7e:f8

        dcbackup05prd_fcs2:
              21:00:00:1b:32:05:7f:f8

        dcbkup01prd_port0:
              21:00:00:1b:32:0e:ec:21

        nvrback4_hba_slot2_20:
              Qlogic Corp. 20:00:00:e0:8b:13:79:80

        nvrback4_hba_slot2_21:
              Qlogic Corp. 21:00:00:e0:8b:13:79:80

        tape0_02:
              IBM 50:05:07:63:0f:02:57:01

        tape0_42:
              IBM 50:05:07:63:0f:42:57:01

        tape1_02:
              IBM 50:05:07:63:0f:02:57:02

        tape1_42:
              IBM 50:05:07:63:0f:42:57:02

        tape2_02:
              IBM 50:05:07:63:0f:02:57:03

        tape2_42:
              IBM 50:05:07:63:0f:42:57:03

        tape3_02:
              IBM 50:05:07:63:0f:02:57:04

        tape3_42:
              IBM 50:05:07:63:0f:42:57:04

        tape4_02:
              IBM 50:05:07:63:0f:02:57:05

        tape4_42:
              IBM 50:05:07:63:0f:42:57:05

        tape5_02:
              IBM 50:05:07:63:0f:02:57:06

        tape5_42:
              IBM 50:05:07:63:0f:42:57:06

        tape6_02:
              IBM 50:05:07:63:0f:02:57:07

        tape6_42:
              IBM 50:05:07:63:0f:42:57:07

        tape7_42:
              IBM 50:05:07:63:0f:42:57:08

        tape8_42:
              IBM 50:05:07:63:0f:42:57:09

        tape9_42:
              IBM 50:05:07:63:0f:42:57:0a

Zones:
        DR_TEMP_ZONE:
              DR_TAPE1      DR_TAPE2
              DRBACKUP01PRD

        bak4tapezone:
              nvrback4_hba_slot2_21      tape4_42
              tape5_42

        dcbackup02prd_zone_0:
              dcbackup02prd_0      dcbackup05prd
              tape0_42      tape1_42
              tape2_42      tape3_42
              tape4_42      tape5_42
              tape6_42

        dcbackup02prd_zone_1:
              dcbackup02prd_1      dcbackup05prd_fcs2
              tape7_42      tape8_42
              tape9_42

        dcbkup01prd_zone:
              dcbkup01prd_port0

        p520tapezone:
              backup520_fcs2_10

Configurations:
        productionCfg:
              dcbackup02prd_zone_0      dcbackup02prd_zone_1
              DR_TEMP_ZONE

        x:
              p520tapezone

# 16  
Old 08-21-2013
Ok,
Aliasing is nothing but giving a name to your WWPN's, as you can see there are many WWPNS already configured. If you have to remove a set of WWPN's from a particular system without Alias you have to navigate all through. But, if you define an Alias you can directly go to that system and cross verify the WWPN's and do the operation.

Zoning is mapping those WWPN's to your SAN (using switch port).

The best practice always is to take a backup/snap shot, we call it CLONE here, do the cloning 1st and then proceed with below steps. If things go awry, you just have to reactive the clone and you are back to the point you cloned it.

Now, you will create an Alias (hostname and WWPNS)
Then you zone it (WWPN ot Switch port).
Then you activate it.
This User Gave Thanks to ibmtech For This Post:
filosophizer
# 17  
Old 08-21-2013
Hi filosophizer,

I don't think a switch is the answer...

Your config has fallen out of the IBM "supported" / known to work, configuration area.

The DS is simply too old for your OS level - hence the weird results.

IBM System Storage Interoperation Center (SSIC)

AIX 6.1 TL3 was the latest level to officially support the DS4500 and then the DS had to have the latest firmware.

From AIX 6.1 TL4 the DS native (MPIO / RDAC) support changed to only support the newer generation of DS storage.

You might try switching from MPIO/APPCM back to RDAC/fcparray with manage_disk_drivers to see if that will still work - rmdev -Rdl the adapters and make sure the dacs/dars and disks have all gone before bringing them back with a reboot or cfgmgr to bring in the new (old) driver.

Make sure the DS4k5 firmware is the latest, 06.60.xx, before you go any further...

HTH
This User Gave Thanks to dukessd For This Post:
filosophizer
# 18  
Old 08-23-2013
Thanks for the replies, IBMTECH and Dukessd

My company has an old system P4 with the following config

Code:
# prtconf | more
System Model: IBM,7029-6C3
Processor Type: PowerPC_POWER4
Number Of Processors: 2
Processor Clock Speed: 1200 MHz
CPU Type: 64-bit
Kernel Type: 32-bit
LPAR Info: 1 NULL
Memory Size: 16384 MB
Good Memory Size: 16384 MB
Firmware Version: IBM,RG040325_d75e04_s
Console Login: enable
Auto Restart: true
Full Core: false

# lsdev -Cc adapter

fcs0      Available 1H-08    FC Adapter
fcs1      Available 1n-08    FC Adapter

lscfg -vl fcs0
  fcs0             U0.1-P1-I5/Q1  FC Adapter

        Part Number.................00P4295
        EC Level....................A
        Serial Number...............1D4230CADC
        Manufacturer................001D
        Feature Code/Marketing ID...5704
        FRU Number..................     00P4297
        Device Specific.(ZM)........3
        Network Address.............10000000C93E6B3E
        ROS Level and ID............02E01871
        Device Specific.(Z0)........2003806D
        Device Specific.(Z1)........00000000
        Device Specific.(Z2)........00000000
        Device Specific.(Z3)........03000909
        Device Specific.(Z4)........FF601231
        Device Specific.(Z5)........02E01871
        Device Specific.(Z6)........06631871
        Device Specific.(Z7)........07631871
        Device Specific.(Z8)........20000000C93E6B3E
        Device Specific.(Z9)........HS1.81X1
        Device Specific.(ZA)........H1D1.81X1
        Device Specific.(ZB)........H2D1.81X1
        Device Specific.(YL)........U0.1-P1-I5/Q1


# oslevel -r

5200-05

which AIX 5.2 ML 05

# lsdev -Cc disk
hdisk0 Available 1S-08-00-5,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 1S-08-00-8,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 1n-08-02     1722-600 (600) Disk Array Device
hdisk3 Available 1H-08-02     1722-600 (600) Disk Array Device
hdisk4 Available 1n-08-02     1722-600 (600) Disk Array Device
hdisk5 Available 1H-08-02     1722-600 (600) Disk Array Device
hdisk6 Available 1n-08-02     1722-600 (600) Disk Array Device

lspath -H
status  name   parent

Enabled hdisk0 scsi0
Enabled hdisk1 scsi0

lslpp -l | grep mpio
  devices.common.IBM.mpio.rte

lslpp -lc | grep mpio
/usr/lib/objrepos:devices.common.IBM.mpio.rte:5.2.0.50::COMMITTED:F:MPIO Disk Path Control Module:

manage_disk_drivers -l
ksh: manage_disk_drivers:  not found.

///not found due to old version 5.2

mpio_get_config -Av
ksh: mpio_get_config:  not found.

///not found due to old version 5.2


SAN STORAGE DS4300 
PROFILE FOR STORAGE SUBSYSTEM:  (8/23/13 10:43:42 PM)

SUMMARY------------------------------
   Number of controllers: 2
   Number of arrays: 4
   Total number of logical drives (includes an access logical drive): 6 of 1024 used
      Number of standard logical drives: 5
      Number of access logical drives: 1
   Number of drives: 14
   Supported drive types: Fibre (14)
   Total hot spare drives: 4
      Standby: 4
      In use: 0
   Access logical drive: LUN 31 (see Mappings section for details)
   Default host type: AIX (Host type index 6)
   Current configuration
      Firmware version: 06.12.16.00
      NVSRAM version: N1722F600R912V05
   Pending configuration
      Staged firmware download supported?: Yes
      Firmware version: None
      NVSRAM version: None
      Transferred on: None

But this one doesn't have any issues, Controller A is connected to Port 0 of Fiber Card 1 and Controller B is connected to Port 1 of Fiber Card 2 but there is a switch in between them and there is zoning.


I will zone the switch as IBMTECH suggested and try and post the details...

If anyone know how to solve this issue, please post.
thanks
# 19  
Old 08-23-2013
As for your old POWER 4 machine the AIX MPIO driver (and the older DS storage subsystems) only support APPCM (Active / Passive Path Control Module) so make sure your zoning only allows one path per adapter / controller - as if it were direct attach.
If you zone each adapter to both controllers you'll end up with a mess in the ODM and get some really strange problems.
HTH
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