MOUNT SOLARIS LUN USING PESUDO NAME

Hello.  Here is some information that should help.

If the question is how to mount new pseudo device, here is the answer step by step.

In this case emcpower0a is the pseudo device.

1)      Label the disk

#format empower0a

Output of this command will be as follows

selecting emcpower0a

[disk formatted]

FORMAT MENU:

        disk       - select a disk

        type       - select (define) a disk type

        partition  - select (define) a partition table

        current    - describe the current disk

        format     - format and analyze the disk

        repair     - repair a defective sector

        label      - write label to the disk

        analyze    - surface analysis

        defect     - defect list management

        backup     - search for backup labels

        verify     - read and display labels

        save       - save new disk/partition definitions

        inquiry    - show vendor, product and revision

        volname    - set 8-character volume name

        !      - execute , then return

        Quit

format> l

Ready to label disk, continue? y

format>

2)      Type q for quitting from format menu.

3)      Create filesystem on the new device using the following command

# newfs /dev/rdsk/emcpower0c

Give y to construct a new file system /dev/rdsk/emcpower0c: (y/n)?

4)      Create a mount directory.

Example : mkdir /test

5)      Mount the newly created FS with pseudo device.

# mount  /dev/dsk/emcpower0c  /test

6)      FS mounted.

With regards to your last question, pseudo devices are created after installing PowerPath and configuring the device under PowerPath control. Pseudo names are the virtual representation underlying physical device names which is also known as the native name.

Hi Brion:

tnank you for your response but when the solaris administrator trying to mount the disk the disk capacity was 128 MB not the full capacity I do not know why

I mean the usable capacity is one of the following red parts 0 or 1 not the full capacity part 6 :

Part      Tag    Flag     Cylinders         Size            Blocks

  0       root    wm       0 -    15      128.00MB    (16/0/0)       262144

  1       swap    wu      16 -    31      128.00MB    (16/0/0)       262144

  2     backup    wu       0 - 43517      339.98GB    (43518/0/0) 712998912

  3 unassigned    wm       0                0         (0/0/0)             0

  4 unassigned    wm       0                0         (0/0/0)             0

  5 unassigned    wm       0                0         (0/0/0)             0

  6        usr    wm      32 - 43517      339.73GB    (43486/0/0) 712474624

  7 unassigned    wm       0                0         (0/0/0)             0

Hello,

   Just wondering which slice did you newfs?

And what device is listed as in powermt display dev=all?

If you look at the devices in the output of a ls -Ralsi /dev, you can see each powerpath slice (emcpowera - emcpowerh 8 in total) correspond to slices 0 - 7  on the raw device.

Hope this helps,

Nollaig

Actually, take a look at Brion's post; he steps through it for you.  Just note the syntax of newfs.  It is slice 2 that you would want to affect which as noted above is emcpower0c

newfs /dev/rdsk/emcpower0c

You would want to format slice 2 which is the slice representing the total capacity.  Therefore, as Nollaig had charted, slice 2 is mapped to the PowerPath pseudo device emcpower0c.  If you were to recall the command that was run, you would likely find that you had performed the newfs on emcpower0a.