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Disk partition - ESX

The Disk Partition tab lets you define partitions for the servers being provisioned. In addition, for ESX 4.0 system packages, you can create a storage partition and virtual disk partitions.

Define a partition for ESX system packages by supplying a script or using the Disk Partition dialog:

  • To supply a script that defines the partition, select Use script for disk partitioning. Then do one of the following:
    • Type the script directly in the input box.
    • Type the name of a local property that contains the script, enclosing the property name with double question marks.
    • Click Select Property to display a drop-down menu of available properties. Select the property that contains the script from the list.
      To reboot after script execution, click Reboot after the script is executed.
  • To define a disk partition using the Disk Partition dialog:
    1. To create a new partition, in the Disk Partitions area, click Add . To modify an existing partition, select the partition in the Disk Partition list and click Edit .
    2. Provide information in the Disk Partition window and click OK.

Field definitions

Mount point

The location within a file directory where a volume should exist. Enter a location or select one from the drop-down list.
ESX 4.0 system packages: To create a data store (storage partition) for the vmfs3 file system type, select Storage 1 from the drop-down menu or type a storage partition name for Mount point/DataStore.


Select one of the following file system types:

  • ext2 — Supports standard UNIX file types and allows file names up to 255 characters.
  • ext3 — Supports all features of ext2 plus journaling.
  • swap — Supports virtual memory, that is, swapping data in and out of this partition when there is insufficient RAM to perform an operation.
  • vmfs3 — Supports the Virtual Machine File System version 3. VMFS is a clustered file system that lets virtual machines access shared storage resources concurrently. Version 3 has a directory structure in the file system.
  • vmkcore — Holds the core dump file for the VMkernel.
  • vmfs2 — Supports the Virtual Machine File System version 2. VMFS is a clustered file system that lets virtual machines access shared storage resources concurrently. Version 2 has a flat file system. (The ESX 4.0 system package does not support the vmfs2 file system.).

Size (MB)

The size of the partition in megabytes. To let the partition fill all remaining space on the disk, check Fill all unused space on disk.
ESX 4.0 system package: You can specify both the size of the partition in megabytes and Fill all unused space on disk.
If you are specifying the size of a swap partition, make sure the size you specify is supported by the specific version of this system package's operating system.


Enter the device name and optionally, parameters related to the device name. For example:
cciss/c0d0 --asprimary
For ESX 4.0 system packages, note the following:

  • The generated kickstart file clears the disks specified in this disk partition list. (In earlier releases, the generated kickstart file cleared all partitions connected to the target host.)
  • To create physical partitions for /boot, vmkcore, or vmfs3, for Disk/Virtual Disk, type an option for a real hard disk drive, such as sda.
  • To create virtual disk partitions for / and /swap, for Disk/Virtual Disk, select the virtual disk from the drop-down menu.

    See Creating Virtual Disk Partitions.

Proceed to the Basic configuration - ESX tab.

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