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Full Discussion: SAN Disk Appearing double in AIX
Operating Systems AIX SAN Disk Appearing double in AIX Post 302843874 by filosophizer on Thursday 15th of August 2013 12:25:47 PM
Old 08-15-2013
I am using VIOS Version
Code:
$ ioslevel
2.1.3.10-FP23

$ oem_setup_env
#
# oslevel -s
6100-05-00-0000

so, in VIOS as far as I know there is no SDD

I do have the MPIO drivers installed which came with the VIOS

Code:
# lsdev -Cc disk
hdisk0 Available 09-08-00-3,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 09-08-00-4,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 09-08-00-5,0 16 Bit LVD SCSI Disk Drive
hdisk3 Available 09-08-00-8,0 16 Bit LVD SCSI Disk Drive
hdisk4 Available 09-08-01-3,0 16 Bit LVD SCSI Disk Drive
hdisk5 Available 09-08-01-4,0 16 Bit LVD SCSI Disk Drive
hdisk6 Available 09-08-01-5,0 16 Bit LVD SCSI Disk Drive
hdisk7 Available 09-08-01-8,0 16 Bit LVD SCSI Disk Drive
hdisk8 Available 0A-08-02     MPIO Other DS4K Array Disk
hdisk9 Available 0A-09-02     MPIO Other DS4K Array Disk
#
# lsvpcfg
ksh: lsvpcfg:  not found.



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

# lslpp -lc | grep mpio
/usr/lib/objrepos:devices.common.IBM.mpio.rte:6.1.5.0::COMMITTED:I:MPIO Disk Path Control Module :
/etc/objrepos:devices.common.IBM.mpio.rte:6.1.5.0::COMMITTED:I:MPIO Disk Path Control Module :


# manage_disk_drivers -l
Device           Present Driver     Driver Options
2810XIV          AIX_AAPCM          AIX_AAPCM,AIX_non_MPIO
DS4100           AIX_APPCM          AIX_APPCM,AIX_fcparray
DS4200           AIX_APPCM          AIX_APPCM,AIX_fcparray
DS4300           AIX_APPCM          AIX_APPCM,AIX_fcparray
DS4500           AIX_APPCM          AIX_APPCM,AIX_fcparray
DS4700           AIX_APPCM          AIX_APPCM,AIX_fcparray
DS4800           AIX_APPCM          AIX_APPCM,AIX_fcparray
DS3950           AIX_APPCM          AIX_APPCM
DS5020           AIX_APPCM          AIX_APPCM
DS5100           AIX_APPCM          AIX_APPCM
DS3500           AIX_APPCM          AIX_APPCM

# mpio_get_config -Av
Frame id 0:
    Storage Subsystem worldwide name: 60ab80016a13700005127aff6
    Controller count: 2
    Partition count: 2
    Partition 0:
    Storage Subsystem Name = ''
        hdisk      LUN #   Ownership          User Label
        hdisk8         4   A (preferred)      testdrive
    Partition 1:
        hdisk      LUN #   Ownership          User Label
        hdisk9         4   B (non-preferred)  testdrive


# lsattr -El hdisk8 | grep fail
algorithm       fail_over                                               Algorithm                        True

# lsattr -El hdisk8 | grep  reserve_policy
reserve_policy  single_path                                             Reserve Policy                   True


dac0 Available 0A-08-02 DS3/4K PCM User Interface
dac1 Available 0A-09-02 DS3/4K PCM User Interface
hdisk0 Available 09-08-00-3,0 16 Bit LVD SCSI Disk Drive
hdisk1 Available 09-08-00-4,0 16 Bit LVD SCSI Disk Drive
hdisk2 Available 09-08-00-5,0 16 Bit LVD SCSI Disk Drive
hdisk3 Available 09-08-00-8,0 16 Bit LVD SCSI Disk Drive
hdisk4 Available 09-08-01-3,0 16 Bit LVD SCSI Disk Drive
hdisk5 Available 09-08-01-4,0 16 Bit LVD SCSI Disk Drive
hdisk6 Available 09-08-01-5,0 16 Bit LVD SCSI Disk Drive
hdisk7 Available 09-08-01-8,0 16 Bit LVD SCSI Disk Drive
hdisk8 Available 0A-08-02 MPIO Other DS4K Array Disk
hdisk9 Available 0A-09-02 MPIO Other DS4K Array Disk

As I explained earlier
Fiber Port 0 is connected to SAN Controller A
Fiber Port 1 is connected to SAN Controller B
There is no SAN Switch in between
and it is direct connection

If both Fiber ports are connected to both controllers then I see duplicated disks.


Do I need to download drivers for IBM FastT 1722 - 60U and it should be appear as 1722-600 (600) Disk Array Device ?

or something else need to be done...

Appreciate your help and feedback...
Last edited by filosophizer; 08-15-2013 at 01:39 PM..
 

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