Trouble creating a disk partition slice (EFI) Post: 302938891

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Operating Systems Solaris Trouble creating a disk partition slice (EFI) Post 302938891 by selectstar on Thursday 19th of March 2015 07:04:23 PM

03-19-2015

Registered User

Trouble creating a disk partition slice (EFI)

Hi all,

I am using SPARC Solaris 11.1 with EFI labelled disks.
I am new to ZFS file systems and slightly stuck when trying to create a partition (slice) on one of my LUNs.

EFI labels use sectors and blocks and I am not sure how exactly it works.

From here I can try and create a partition but when I have to enter the Starting Sector, I get confused, as you can see from the below code.

I have tried to understand the sectors and so on, but cannot work out what sector I need to create from.

Any help would be greatly appreciated and/or info on sectors.

Code:

root@odb-grumpy:/# format
Searching for disks...done


AVAILABLE DISK SELECTIONS:
       0. c2d1 <NETAPP-LUN-820a-40.00GB>
          /virtual-devices@100/channel-devices@200/disk@1
       1. c2d2 <NETAPP-LUN-820a-20.00GB>
          /virtual-devices@100/channel-devices@200/disk@2
       2. c2d3 <NETAPP-LUN-820a-500.00MB>
          /virtual-devices@100/channel-devices@200/disk@3
Specify disk (enter its number): 2
selecting c2d3
[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
        inquiry    - show disk ID
        volname    - set 8-character volume name
        !<cmd>     - execute <cmd>, then return
        quit
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: 1007549 + 16384 (reserved sectors)

Part      Tag    Flag     First Sector       Size       Last Sector
  0        usr    wm               256    491.86MB        1007582
  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   reserved    wm           1007583      8.00MB        1023966

partition> 1
Part      Tag    Flag     First Sector       Size       Last Sector
  1 unassigned    wm                 0         0             0

Enter partition id tag[usr]:
Enter partition permission flags[wm]:
Enter new starting sector[1007583]:

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LEARN ABOUT ULTRIX

disktab

disktab(5)							File Formats Manual							disktab(5)

Name
       disktab - disk description file

Syntax
       #include <disktab.h>

Description
       The file is a simple data base that describes disk geometries and disk partition characteristics.  The format is patterned after the termi-
       nal data base.  Entries in consist of a number of fields separated by colons (:).  The first entry for each disk gives the names  that  are
       known for the disk, separated by vertical bars (|).  The last name given should be a long name fully identifying the disk.

       The following list indicates the normal values stored for each disk entry:
       Name Type Description
       ns   num  Number of sectors per track
       nt   num  Number of tracks per cylinder
       nc   num  Total number of cylinders on the disk
       ba   num  Block size for partition `a' (bytes)
       bd   num  Block size for partition `d' (bytes)
       be   num  Block size for partition `e' (bytes)
       bf   num  Block size for partition `f' (bytes)
       bg   num  Block size for partition `g' (bytes)
       bh   num  Block size for partition `h' (bytes)
       fa   num  Fragment size for partition `a' (bytes)
       fd   num  Fragment size for partition `d' (bytes)
       fe   num  Fragment size for partition `e' (bytes)
       ff   num  Fragment size for partition `f' (bytes)
       fg   num  Fragment size for partition `g' (bytes)
       fh   num  Fragment size for partition `h' (bytes)
       pa   num  Size of partition `a' in sectors
       pb   num  Size of partition `b' in sectors
       pc   num  Size of partition `c' in sectors
       pd   num  Size of partition `d' in sectors
       pe   num  Size of partition `e' in sectors
       pf   num  Size of partition `f' in sectors
       pg   num  Size of partition `g' in sectors
       ph   num  Size of partition `h' in sectors
       se   num  Sector size in bytes
       ty   str  Type of disk (e.g. removable, winchester)

       The entries can be automatically generated with the program.

Files
See Also
       chpt(8), newfs(8)

																	disktab(5)