6 Replies Latest reply: Jun 2, 2014 9:52 AM by Pascal Kreyer-Oracle RSS

    LUN partition table

    ra*326096*ul

      Hi

       

      I have a  V880  running Solaris 9 While checking the LUNs assigned to the  server , the format output for one of the disks shows 128  partitions!

       

           892. c5t6d248 <EMC      SYMMETRIX        5773 10dbc80>
                /pci@9,600000/pci@2/fibre-channel@5/sd@6,f8
      Specify disk (enter its number)[603]: 892
      selecting c5t6d248
      [disk formatted]
      format> p


      PARTITION MENU:
              0      - change `0' partition
              1      - change `1' partition
              2      - change `2' partition
              3      - change `3' partition
              4      - change `4' partition
              5      - change `5' partition
              6      - change `6' partition
              select - select a predefined table
              modify - modify a predefined partition table
              name   - name the current table
              print  - display the current table
              label  - write partition map and label to the disk
              !<cmd> - execute <cmd>, then return
              quit
      partition> p
      Current partition table (original):
      Total disk sectors available: 17661022 + 16384 (reserved sectors)

      Part      Tag    Flag     First Sector        Size        Last Sector
        0 unassigned    wm                 0          0              0
        1 unassigned    wm                 0          0              0
        2 unassigned    wm                 0          0              0
        3 unassigned    wm                 0          0              0
        4 unassigned    wm                 0          0              0
        5 unassigned    wm                 0          0              0
        6 unassigned    wm                 0          0              0
        8 unassigned    wm                 0          0              0
        9 unassigned    wm                 0          0              0
        a unassigned    wm                 0          0              0
        b unassigned    wm                 0          0              0
        c unassigned    wm                 0          0              0
        d unassigned    wm                 0          0              0
        e unassigned    wm                 0          0              0
        f unassigned    wm                 0          0              0
        10 unassigned    wm                 0          0              0
      .
      .
      .
      .
        7d unassigned    wm                 0          0              0
        7e unassigned    wm                 0          0              0
        7f unassigned    wm                 0          0              0

      partition>

       

      Anyone has any idea what this output means .Any inputs is appreciated

       

      TIA

        • 2. Re: LUN partition table
          Cindys-Oracle

          I think you must mean Solaris 10 update 9, maybe because we didn't support EFI labels in the Solaris 9 release. This is indeed an EFI label and by default has 127 partitions, but only 8 are usable. A bug is filed to limit the display to the usable 8 partitions because its very confusing and somewhat annoying output.

           

          Thanks, Cindy

          • 3. Re: LUN partition table

            cindys wrote:

             

            I think you must mean Solaris 10 update 9,

            Cindy,

            That is not necessarily correct.

            The V880 systems were qualified to function on Solaris 8 (7/01) for 750MHz processors, Solaris 8 (10/01) for 900MHz processors (if a large host of patches were applied), and Solaris 8 (2/02) or Solaris 9 for 900MHz processors ( US-III and US-III+ modules).   Solaris 10 is usable on that platform, but that's not what was described in the initial post.

             

            The O.P. could very well be running Solaris 9 and be attempting to use an EFI formatted drive that was formatted elsewhere -- particularly since it's a drive in an external EMC array.

             

            Let's see how they respond after they review Pascal's link.

            • 4. Re: LUN partition table
              Cindys-Oracle

              Hey Rubkat,

               

              Actually, I'm incorrect but I don't think its because of what you suggest. Some later versions of Solaris 9 do support EFI labels so I was mistaken about the Solaris release that supports EFI. I still contend that if you attempt to access a disk with an EFI label to a system that runs an earlier Solaris release (with no EFI support), you will not even be able to display the EFI partition table like above. You will see a error message like below.

               

              Thanks for keeping me honest though. Cindy

               

              Dec 3 09:12:17 holoship scsi: WARNING: /sbus@a,0/SUNW,socal@d,10000/ sf@1,0/ssd@w50020f23000002a4,0 (ssd1): Dec 3 09:12:17 holoship corrupt label - wrong magic number

              • 5. Re: LUN partition table
                ra*326096*ul

                Thanks Pascal,Cindy Rukbat for the  helpful insight The machine is running  Solaris 9 update 2 with kernel patch  118558-06

                Also Just wanted  to check how to find the size of  this LUN

                • 6. Re: LUN partition table
                  Pascal Kreyer-Oracle

                  Format -> Verify -> bytes/sector * sectors