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sashi's avatar
sashi
Level 4
11 years ago

vxdisk list shows Simple type disks as "error"

Hi ,

Am facing issue on Aix 7 with VxVm

  VRTSvxvm  6.0.300.0    A     F    Veritas Volume Manager by and am  using the Third party Multipathing software (Dynapath).

Problem is that after the "vxdisk scandisk" vxdisk list is showing the foriegn disk in "error " state.Please suggest a way.

 

Steps:

- creating nodes in /dev/vx/dmp, /dev/vx/rdmp

- Added as foreign disk

- vxdisk scandisks

-vxdctl enable

-vxdisk list

   bash-3.2# vxdisk list

DEVICE       TYPE            DISK         GROUP        STATUS
hdisk0       auto:LVM        -            -            LVM
hdiskdpd0    simple          -            -            error
hdisk1       auto:LVM        -            -            LVM
hdisk3       auto:LVM        -            -            LVM
hdisk4       auto:none       -            -            online invalid
hdisk5       auto:LVM        -            -            LVM
 
 
bash-3.2# vxdisk list hdiskdpd0
Device:    hdiskdpd0
devicetag: hdiskdpd0
type:      simple
flags:     error private foreign
pubpaths:  block=/dev/hdiskdpd0 char=/dev/rhdiskdpd0
guid:      -
udid:      INVALID
site:      -
errno:     Device path not valid
 
 
 
 

    

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  • Gaurav_S's avatar
    Gaurav_S
    Moderator
    11 years ago

    Hi,

    is this a new setup or existing environment was upgraded to 6.0 ?

    Did you look at dmp_native_support tunable ? is it set to on ?

    refer below

    https://sort.symantec.com/public/documents/sfha/6.0/aix/productguides/html/dmp_admin/ch02s01.htm

    From above section

    Devices that are multi-pathed with Third-party drivers (TPD)

    If a disk is already multi-pathed with a third-party driver (TPD), DMP does not manage the devices unless you remove TPD support. After removing TPD support, turn on the dmp_native_support tunable to migrate the devices.

    If LVM volume groups are constructed over TPD devices, then perform the steps to migrate the LVM volume groups onto DMP devices.

    To turn on the dmp_native_support tunable, use the following command:

    # vxdmpadm settune dmp_native_support=on

    The first time this operation is performed, the command reports if a volume group is in use, and does not migrate those devices. To migrate the volume group onto DMP, stop the volume group. Then execute the vxdmpadm settune command again to migrate the volume group onto DMP.

    To verify the value of the dmp_native_support tunable, use the following command:

    # vxdmpadm gettune dmp_native_support
         Tunable               Current Value  Default Value
----------------------------    ----------------    -----------------
dmp_native_support               on              off

     

    Once tunable is set, scan disk again with vxdctl enable & see if you can see the disk

     

     

    G

  • sashi's avatar
    sashi
    Level 4
    11 years ago

    Hi ,

     Thanks for the reply.I tried with your steps but still the state of the disk is "error".

     It is a new setup not an upgraded one.

     

    bash-3.2#  vxdmpadm gettune dmp_native_support
                Tunable               Current Value  Default Value
    ------------------------------    -------------  -------------
    dmp_native_support                       on              off
    bash-3.2#
     
    ============
     
    bash-3.2# vxdisk list
    DEVICE       TYPE            DISK         GROUP        STATUS
    aluadisk0_0  auto:cdsdisk    -            -            online
    aluadisk0_1  auto:cdsdisk    -            -            online
    aluadisk0_2  auto:none       -            -            online invalid
    aluadisk0_3  auto:LVM        -            -            LVM
    aluadisk0_4  auto:LVM        -            -            LVM
    hdiskdpd0    simple          -            -              error

    after "vxdisk scandisks" the nodes in the /dev/vx/dmp , /dev/vx/rdmp disappears.

    bash-3.2# ls -l /dev/vx/dmp
    total 0
    brw-------    1 root     system       50,  5 Dec 10 23:39 aluadisk0_0
    brw-------    1 root     system       50, 11 Dec 10 23:39 aluadisk0_1
    brw-------    1 root     system       50, 12 Dec 10 23:39 aluadisk0_2
    brw-------    1 root     system       50,  8 Dec 10 23:39 aluadisk0_3
    brw-------    1 root     system       50,  6 Dec 10 23:39 aluadisk0_4
    brw-------    1 root     system       50,  9 Dec 10 23:39 aluadisk0_5
    brw-------    1 root     system       50, 10 Dec 10 23:39 aluadisk0_6
    brw-------    1 root     system       50,  4 Dec 10 23:39 aluadisk0_7
     
     
    How to make persistent after the scandisks.? 
     
    May i know when are these flags and error with the udid set?
     
    bash-3.2# vxdisk list hdiskdpd0
    Device:    hdiskdpd0
    devicetag: hdiskdpd0
    type:      simple
    flags:     error private foreign
    pubpaths:  block=/dev/hdiskdpd0 char=/dev/rhdiskdpd0
    guid:      -
    udid:      INVALID
    site:      -
    errno:     Device path not valid
     

     

     

  • sashi's avatar
    sashi
    Level 4
    11 years ago

    Hi ,

    Could you please reply to the above query. Its important .Thank you

     

  • Gaurav_S's avatar
    Gaurav_S
    Moderator
    11 years ago

    Hello,

    Are you able to see this device at OS layer ?

    post the lspv output from the server, paste the exact command you have used to add foreign device , lastly paste the contents of /etc/vx/darecs file

     

    G

  • sashi's avatar
    sashi
    Level 4
    11 years ago

    Yes device is visible at OS level.

    here is the output ;

     bash-3.2# lspv

    hdisk0          00cdef2b6b36047f                    rootvg          active
    hdisk1          00c676dc3f08af19                    rootvg          active
    hdiskdpdctrl    none                                None
    hdiskdpd0      none                                None
    hdisk2          none                                None
    hdisk14         none                                None
    hdisk26         none                                None
    hdisk38         none                                None
    bash-3.2#
     
     
    bash-3.2# vxddladm -f addforeign blockpath=/dev/hdiskdpd0 charpath=/dev/rhdiskdpd0
    bash-3.2#
    bash-3.2#
     
    bash-3.2# cat /etc/vx/darecs
    /dev/hdiskdpd0  foreign f       block   /dev/rhdiskdpd1 char
     
     
    bash-3.2# vxdisk list
    DEVICE       TYPE            DISK         GROUP        STATUS
    hdisk0       auto:LVM        -            -            LVM
    hdiskdpd0    simple          -            -            error
    hdisk1       auto:LVM        -            -            LVM
     
     
    bash-3.2# vxddladm listforeign all
     
    The Paths included are
    -----------------------
     
    Based on Directory names:
    -----------------------
     
    Based on Full Path:
    --------------------
    /dev/hdiskdpd0         block  /dev/rhdiskdpd0          char  Suppress foreign
    bash-3.2#
     
     
  • sashi's avatar
    sashi
    Level 4
    11 years ago

     And we don't have the valid ASL .Added the disks as jbod.

    after vxdctl enable and vxdisk scandisks the nodes in the /dev/vx/dmp and /dev/vx/rdmp disappears .

    Is there any way to make them persistant..?

     

  • Gaurav_S's avatar
    Gaurav_S
    Moderator
    11 years ago

    Hi,

    I am looking for options here, first I would like to see the disk in online state, then we can think of persistent device issues.

    If the disk is visible from OS level, can you put a PV on it so that it has a PVID & then rescan the disks ?

     

    G

  • sashi's avatar
    sashi
    Level 4
    11 years ago

    Hi Gaurav,

      Here is the ouput ,disk has pvid but still after rescan and vxdctl enable disk is in error state

     

    bash-3.2# lspv
    hdisk0          00cdef2b6b36047f                    rootvg          active
    hdisk1          00c676dc3f08af19                    rootvg          active
    hdisk2          none                                None
    hdisk3          none                                None
    hdiskdpdctrl    none                                None
    hdiskdpd0       000069fe000022e6                    testvg          active
    hdisk13         none                                None
    hdisk14         none                                None
    hdisk23         none                                None
    hdisk26         none                                None
    hdisk33         none                                None
    hdisk38         none                                None
     
     
    bash-3.2# vxdisk scandisks
    bash-3.2#
    bash-3.2#
    bash-3.2# vxdisk list
    DEVICE       TYPE            DISK         GROUP        STATUS
    hdisk0       auto:LVM        -            -            LVM
    hdiskdpd0    simple          -            -            error
    hdisk1       auto:LVM        -            -            LVM
    hdisk2       auto            -            -            error
    hdisk3       auto:none       -            -            online invalid
     

     

  • sashi's avatar
    sashi
    Level 4
    11 years ago

     

    Is there any changes we can make in ODM side..? I mean any attributes ?

  • sashi's avatar
    sashi
    Level 4
    11 years ago

    Hi,

    Could you please provide any further suggestions..?

     

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