SOLARIS DISK PARTITIONING

DISK TERMINOLOGY

Disk contain the following components.

1. Tracks
2. Cylinders
3.Sectors/Blocks


Tracks
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Tracks are the concentric ring on the each paltter .

Cylinder
-----------
Groups of tracks

Sectors/Blocks
----------------

512 byte block. Which is the smallest unit represented in hardisk.


Partition with Solaris is AKA slices


To display the Slices with in the harddisk.

#df -h

X86 PCS are limited to 4 primary partitions. Normally x86are divided in to 3 primary and 1 extended.

NOTE:Solaris need one fdisk Partition for it's use.

If you want to add another harddrive disk1

1. Create fdisk partion for Solaris use

2. Then Create  Slices

NOTE: Solaris uses a VTOC(VOLUME TABLE OF CONTENT) to represent the various slices with long fdisk partition on the disk. On the Sparc  Solaris uses VTOC to represent al the slices.

SLICE RULES USING VTOC
---------------------------------

1, Slices may created using VTOC on X86
2. These 10 slicers are represented by 0 to 9.
3. Slices 2,8,9 are reserved. Slice 2 is reserverd for VTOC
NOTE: VTOC Represent the disk label and occupying slice2
4. Slices 0,1,3,6,7 are avilable for use.

Root file system is slice 0.

PRINT VROC/DISKLABEL USING

# prtvtoc /dev/dsk/c0t0d0s0

C0 - Controller Number ## 1st controller
t0- Identifier for the bus orientated controller SCASI/SATA ### For IDE hardisk t0 is not present.
d0 - Represents disk number.
s0- Slice0

VTOC information contain entair diskinformation.

FORAMAT UTILITY
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1. To open the format utility

# format

2. To list the disk attached to the system

format> disk

3. To select a disk

Enter the disk Number want to select and put enter.

4. To discribe the current disk

format> Current

The output of the above command is shown below.

Current Disk = c1d0

/pci@0,0/pci-ide@1f,2/ide@1/cmdk@0,0


5, In the format menu we can get help by pressing question mark or help

6. Inside format tool there is a utilty called format. To format the a selected disk use the following steps.

format> disk

select the disk you want to format

format > format


select partition setup in the format menu.

format> partition

The above partion command will list the avilabe slices.
Select the slice number from there.

partition> 5
Then it will prompt for


Enter partition id tag : put an enter there.
Enter partition permission: put an enter there
Enter new starting cyl: Enter here a new cyl starting


This will create a slice.


Format the slice using the the utility

# newfs /dev/rdsk/c0d0s6

# mount /dev/dsk/c0d0s6 /mnt




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