vSphere Storage - ESXi 5.1 - Documentation - VMware

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vSphere Storage When you first boot from iSCSI, the iSCSI boot firmware on your system connects to an iSCSI target. If login is successful, the firmware saves the networking and iSCSI boot parameters in the iBFT and stores the table in the system's memory. The system uses this table to configure its own iSCSI connection and networking and to start up. The following list describes the iBFT iSCSI boot sequence. 1 When restarted, the system BIOS detects the iSCSI boot firmware on the network adapter. 2 The iSCSI boot firmware uses the preconfigured boot parameters to connect with the specified iSCSI target. 3 If the connection to the iSCSI target is successful, the iSCSI boot firmware writes the networking and iSCSI boot parameters in to the iBFT and stores the table in the system memory. NOTE The system uses this table to configure its own iSCSI connection and networking and to start up. 4 The BIOS boots the boot device. 5 The VMkernel starts loading and takes over the boot operation. 6 Using the boot parameters from the iBFT, the VMkernel connects to the iSCSI target. 7 After the iSCSI connection is established, the system boots. iBFT iSCSI Boot Considerations When you boot the ESXi host from iSCSI using iBFT-enabled network adapters, certain considerations apply. The iBFT iSCSI boot does not support the following items: n IPv6 n Failover for the iBFT-enabled network adapters NOTE Update your NIC's boot code and iBFT firmware using vendor supplied tools before trying to install and boot VMware ESXi. Consult vendor documentation and VMware HCL for supported boot code and iBFT firmware versions for VMware ESXi iBFT boot. The boot code and iBFT firmware released by vendors prior to the ESXi 4.1 release might not work. After you set up your host to boot from iBFT iSCSI, the following restrictions apply: n You cannot disable the software iSCSI adapter. If the iBFT configuration is present in the BIOS, the host re-enables the software iSCSI adapter during each reboot. NOTE If you do not use the iBFT-enabled network adapter for the iSCSI boot and do not want the software iSCSI adapter to be always enabled, remove the iBFT configuration from the network adapter. n You cannot remove the iBFT iSCSI boot target using the vSphere Client or the vSphere Web Client. The target appears on the list of adapter static targets. Configuring iBFT Boot from SAN You can boot from the iSCSI SAN using the software iSCSI adapter or a dependent hardware iSCSI adapter and a network adapter. The network adapter must support iBFT. When you set up your host to boot with iBFT, you perform a number of tasks. 1 Configure iSCSI Boot Parameters on page 123 To begin an iSCSI boot process, a network adapter on your host must have a specially configured iSCSI boot firmware. When you configure the firmware, you specify the networking and iSCSI parameters and enable the adapter for the iSCSI boot. 122 VMware, Inc.
2 Change Boot Sequence in BIOS on page 123 When setting up your host to boot from iBFT iSCSI, change the boot sequence to force your host to boot in an appropriate order. 3 Install ESXi to iSCSI Target on page 124 When setting up your host to boot from iBFT iSCSI, install the ESXi image to the target LUN. 4 Boot ESXi from iSCSI Target on page 124 After preparing the host for an iBFT iSCSI boot and copying the ESXi image to the iSCSI target, perform the actual boot. Configure iSCSI Boot Parameters To begin an iSCSI boot process, a network adapter on your host must have a specially configured iSCSI boot firmware. When you configure the firmware, you specify the networking and iSCSI parameters and enable the adapter for the iSCSI boot. Configuration on the network adapter can be dynamic or static. If you use the dynamic configuration, you indicate that all target and initiator boot parameters are acquired using DHCP. For the static configuration, you manually enter data that includes your host's IP address and initiator IQN, and the target parameters. Procedure u On the network adapter that you use for the boot from iSCSI, specify networking and iSCSI parameters. Because configuring the network adapter is vendor specific, review your vendor documentation for instructions. Change Boot Sequence in BIOS When setting up your host to boot from iBFT iSCSI, change the boot sequence to force your host to boot in an appropriate order. Change the BIOS boot sequence to the following sequence: n iSCSI n DVD-ROM Because changing the boot sequence in the BIOS is vendor specific, refer to vendor documentation for instructions. The following sample procedure explains how to change the boot sequence on a Dell host with a Broadcom network adapter. Procedure 1 Turn on the host. 2 During Power-On Self-Test (POST), press F2 to enter the BIOS Setup. 3 In the BIOS Setup, select Boot Sequence and press Enter. 4 In the Boot Sequence menu, arrange the bootable items so that iSCSI precedes the DVD-ROM. 5 Press Esc to exit the Boot Sequence menu. 6 Press Esc to exit the BIOS Setup. 7 Select Save Changes and click Exit to exit the BIOS Setup menu. Chapter 13 Booting from iSCSI SAN VMware, Inc. 123
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vSphere Storage ESXi 5.1 vCenter Se
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Contents About vSphere Storage 9 Up
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Configuring Discovery Addresses for
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22 Storage Thin Provisioning 225 St
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About vSphere Storage vSphere Stora
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Updated Information This vSphere St
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Introduction to Storage 1 This intr
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Networked Storage Networked storage
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Network-attached Storage (NAS) Stor
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Table 1-1. Storage Device Informati
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Table 1-2. Storage Adapter Informat
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Display Datastore Information in th
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Figure 1-6. Virtual machines access
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Overview of Using ESXi with a SAN 2
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ESXi Hosts and Multiple Storage Arr
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Not all applications need to be on
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n Overall impact on SAN environment
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Using ESXi with Fibre Channel SAN 3
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With ESXi hosts, use a single-initi
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Configuring Fibre Channel Storage 4
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2 Check that all SAN components mee
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3 Click VM Options. 4 Click the Fib
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Configuring Fibre Channel over 5 Et
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6 Select the network adapter (vmnic
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6 Click OK. The software FCoE adapt
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Modifying Fibre Channel Storage for
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n To use boot from SAN, make sure t
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3 Execute these commands for SPB to
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Booting ESXi from Fibre Channel SAN
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2 Configure the storage array. a Fr
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g Select 1. WWPN. (Boot this device
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Booting ESXi with Software FCoE 8 E
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Install and Boot ESXi from Software
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Best Practices for Fibre Channel 9
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Storage Array Performance Storage a
Page 71 and 72: Using ESXi with iSCSI SAN 10 You ca
Page 73 and 74: The 16-hexadecimal digits are text
Page 75 and 76: Discovery A discovery session is pa
Page 77 and 78: Configuring iSCSI Adapters and 11 S
Page 79 and 80: For active-passive storage arrays n
Page 81 and 82: Change Name and IP Address for Inde
Page 83 and 84: n Broadcom iSCSI adapters do not su
Page 85 and 86: The software iSCSI adapter configur
Page 87 and 88: Procedure 1 Browse to the host in t
Page 89 and 90: Figure 11-2. 1:1 adapter mapping on
Page 91 and 92: You created the virtual VMkernel ad
Page 93 and 94: 5 Click Add and select a VMkernel a
Page 95 and 96: 5 Create iSCSI VMkernel adapters fo
Page 97 and 98: Managing iSCSI Network Special cons
Page 99 and 100: Enable Jumbo Frames for Independent
Page 101 and 102: Procedure 1 Log in to the vSphere C
Page 103 and 104: Table 11-4. CHAP Security Level (Co
Page 105 and 106: 2 Under Adapter Details, click the
Page 107 and 108: 3 From the list of available target
Page 109 and 110: Table 11-5. Additional Parameters f
Page 111 and 112: Procedure u To list iSCSI sessions,
Page 113 and 114: Modifying iSCSI Storage Systems for
Page 115 and 116: n Certain EMC CLARiiON CX3 models m
Page 117 and 118: NetApp Storage Systems For NetApp s
Page 119 and 120: Booting from iSCSI SAN 13 When you
Page 121: 4 Select the I/O port to configure.
Page 125 and 126: Isolated iSCSI and Management Netwo
Page 127 and 128: Best Practices for iSCSI Storage 14
Page 129 and 130: Because each application has differ
Page 131 and 132: Generally, applications or systems
Page 133 and 134: Managing Storage Devices 15 Manage
Page 135 and 136: Storage Refresh and Rescan Operatio
Page 137 and 138: Change the Number of Scanned LUNs B
Page 139 and 140: It is possible for a device to retu
Page 141 and 142: To avoid these problems, your host
Page 143 and 144: PDL Conditions and High Availabilit
Page 145 and 146: Solid State Disks Enablement 16 In
Page 147 and 148: 4 Unclaim the device. u You can unc
Page 149 and 150: 6 Check the device status by runnin
Page 151 and 152: Best Practices for SSD Devices Foll
Page 153 and 154: Working with Datastores 17 Datastor
Page 155 and 156: n Scalability improvements on stora
Page 157 and 158: n Creating a template n Deploying a
Page 159 and 160: In an L3 environment the following
Page 161 and 162: The datastore on the SCSI-based sto
Page 163 and 164: Procedure 1 Log in to the vSphere C
Page 165 and 166: When you perform datastore resignat
Page 167 and 168: 2 Click the Configuration tab and c
Page 169 and 170: Option Description Use free space D
Page 171 and 172: 3 In the Inventory panel, choose Da
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Turn off Storage Filters When you p
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Set Up Dynamic Disk Mirroring Typic
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4 Click Next. 5 Select the device t
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Raw Device Mapping 18 Raw device ma
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Snapshots Makes it possible to use
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n You cannot convert larger than 2T
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9 In the Ready to Complete New Virt
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Manage Paths for a Mapped LUN in th
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VMkernel and Storage 19 The VMkerne
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Chapter 19 VMkernel and Storage n A
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Understanding Multipathing and 20 F
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Figure 20-2. Host-Based Path Failov
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Figure 20-4. Port Reassignment 10.0
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Figure 20-5. Pluggable Storage Arch
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6 The SATP interprets the I/O comma
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3 Click Devices under View. 4 Selec
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2 In the Paths panel, right-click t
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This example indicates the followin
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Procedure 1 To define a new claim r
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Mask Paths You can prevent the host
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Procedure 1 To add a claim rule for
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Storage Hardware Acceleration 21 Th
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On your host, the hardware accelera
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Procedure u Run the esxcli --server
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3 Load both claim rules by running
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Uninstall NAS Plug-Ins To uninstall
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Storage Thin Provisioning 22 With E
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You can use Storage vMotion or cros
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3 Click the Hardware tab and select
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Requirements To use the thin provis
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Procedure Chapter 22 Storage Thin P
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Using Storage Vendor Providers 23 W
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n Alarms indicate a change in stora
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3 In the Storage Providers list, vi
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Virtual Machine Storage Profiles 24
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View Existing Storage Capabilities
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Assign User-Defined Storage Capabil
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Remove a Storage Capability in the
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Create a Virtual Machine Storage Pr
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Procedure 1 Open the Profiles tab o
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Monitor Storage Compliance for Virt
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Using vmkfstools 25 vmkfstools is o
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File System Options File system opt
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When upgrading the datastore, use t
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Renaming a Virtual Disk This option
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Listing Attributes of an RDM This o
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Index Symbols * next to path 201 A
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G GPT 18 H hardware acceleration ab
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limitations 42 requirements 41 O on
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EMC CLARiiON 52, 114 EMC Symmetrix
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vSphere Storage - ESXi 5.1 - Documentation - VMware

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