You can configure SAN boot on a Red Hat Enterprise Linux 5 or 6 series host using software iSCSI.
Before you begin
Check the Interoperability Matrix
- When you initiate the installation, specify the Boot Option as
linux mpath and press Enter.
- Continue with the installation until you reach the storage configuration page. Click
Advanced storage configuration.
Add iSCSI target and click
- Enter the Target IP address and the iSCSI initiator name.
Note: You should ensure that you associate this IQN with the correct privileges on the storage controller.
- On the storage controller, create an igroup with the initiator name that you provided in Step 4.
- Create a LUN on the storage system on which you intend to create root partition, and map it to the igroup.
- Return to the host screen.
Add Target in the
Configure iSCSI Parameters window.
When you add the target, the target portal is discovered.
Note: You should ensure that multiple target portals are discovered, because the Red Hat installer does not identify the iSCSI device as a multipathed device unless it has more than one path.
- To discover more target portals, repeat Step 2 through Step 8.
You should now see a multipathed iSCSI device listed in the drives section.
Note: If the iSCSI multipathed device is not listed, you should check the configuration.
- Select a partitioning layout as
Create custom layout and Click
You can now proceed with the installation process and enter choices until you reach the
Installation Summary page.
- At the
storage devices selection screen, select the iSCSI multipathed device from the list of allowable drives where you want to install the root file system.
- Create the root file system on the selected device and select the mount point as
- Create a SWAP partition.
You can create a SWAP partition on the same LUN that contains the root partition or on a different LUN.
If you are using the software suspend functionality, you should ensure that the SWAP partition is on a local disk.
- Create the /boot partition.
You can create a /boot partition on a locally attached disk or use a PXE server to load the kernel boot image.
Next and follow the installation prompts to complete the installation.