Guid partition table – Dell Emulex Family of Adapters User Manual

Page 1560

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Boot Version 10.2 for NIC, iSCSI, FCoE, and RoCE Protocols User Manual

P010097-01B Rev. A

4. Configuring Boot from SAN for the FCoE Protocol

Windows Server 2008, Windows Server 2012, and Windows Server 2012 R2

1560

loader utility. Windows Boot Manager can be found in the Start Options menu of

the Host Server UEFI.

9. The Windows Boot Manager option is inserted as the first boot option in the boot

order list of the Host Server UEFI. The CD/DVD boot is the second device in the

boot order list.

10. Upon reboot, the system boots from the LUN set up on the SAN.

Directing a UEFI-based Server to a Windows Server 2008,
2008 R2, 2012, or 2012 R2 Operating System Image
(Installed as UEFI-aware) Already Installed on the SAN

This installation procedure assumes a LUN exists in the SAN storage device, is zoned

appropriately to the host adapter’s WWN, and a UEFI-aware operating system resides

on the target LUN.
To direct a UEFI-based server to a Windows Server operating system image:
1. Enable network boot in the Emulex UEFI configuration utility.
2. Configure the boot target and LUN in the Emulex UEFI configuration utility to

point to your desired target.

3. Select Boot Manager from the System UEFI configuration manager.
4. Select Add Boot Option.
5. Identify the desired target in the list, and continue down the explorer path until you

locate the bootmgfw.efi file. This file is the boot loader utility for your Windows

Server 2008, 2008 R2, 2012, or 2012 R2 UEFI-aware operating system installation.

6. Input a boot device description (for example, Win2K8_UEFI_SAN) and optional

data (if desired) for this device and select Commit Changes.

7. From the Windows Boot Manager, select Change Boot Order.
8. Move your previous input description name (Win2K8_UEFI_SAN) to the desired

position in the boot order.

9. Select Commit Changes. The Start Options list now reflects the boot order changes.

Upon reboot, the server is able to boot from this target LUN on the SAN.

GUID Partition Table

The GPT was introduced as part of the EFI initiative. GPT provides a more flexible

mechanism for partitioning disks than the older MBR partitioning scheme that has been

common to PCs. MBR supports four primary partitions per hard drive and a maximum

partition size of 2 TB. If the disk is larger than 2 TB (the maximum partition size in a

legacy MBR), the size of this partition is marked as 2 TB and the rest of the disk is

ignored.

The GPT disk itself can support a volume up to 2

64

blocks in length (for 512-byte blocks,

this is 9.44 ZB). The GPT disk can also theoretically support unlimited partitions.

Note: By default, Microsoft Windows Server 2008, 2008 R2, 2012, and 2012 R2 installs

with a GPT-formatted disk on an UEFI-aware server.

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