vSphere Storage - ESXi 5.1 - Documentation - VMware

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vSphere Storage Install ESXi to iSCSI Target When setting up your host to boot from iBFT iSCSI, install the ESXi image to the target LUN. Prerequisites n Configure iSCSI boot firmware on your boot NIC to point to the target LUN that you want to use as the boot LUN. n Change the boot sequence in the BIOS so that iSCSI precedes the DVD-ROM. n If you use Broadcom adapters, set Boot to iSCSI target to Disabled. Procedure 1 Insert the installation media in the CD/DVD-ROM drive and restart the host. 2 When the installer starts, follow the typical installation procedure. 3 When prompted, select the iSCSI LUN as the installation target. The installer copies the ESXi boot image to the iSCSI LUN. 4 After the system restarts, remove the installation DVD. Boot ESXi from iSCSI Target After preparing the host for an iBFT iSCSI boot and copying the ESXi image to the iSCSI target, perform the actual boot. Prerequisites n Configure the iSCSI boot firmware on your boot NIC to point to the boot LUN. n Change the boot sequence in the BIOS so that iSCSI precedes the boot device. n If you use Broadcom adapters, set Boot to iSCSI target to Enabled Procedure 1 Restart the host. The host boots from the iSCSI LUN using iBFT data. During the first boot, the iSCSI initialization script sets up default networking. The network setup is persistent after subsequent reboots. 2 (Optional) Adjust networking configuration using the vSphere Web Client. Networking Best Practices To boot the ESXi host from iSCSI using iBFT, you must properly configure networking. To achieve greater security and better performance, have redundant network adapters on the host. How you set up all the network adapters depends on whether your environment uses shared or isolated networks for the iSCSI traffic and host management traffic. Shared iSCSI and Management Networks Configure the networking and iSCSI parameters on the first network adapter on the host. After the host boots, you can add secondary network adapters to the default port group. 124 VMware, Inc.
Isolated iSCSI and Management Networks When you configure isolated iSCSI and management networks, follow these guidelines to avoid bandwidth problems. n Your isolated networks must be on different subnets. n If you use VLANs to isolate the networks, they must have different subnets to ensure that routing tables are properly set up. n VMware recommends that you configure the iSCSI adapter and target to be on the same subnet. If you set up the iSCSI adapter and target on different subnets, the following restrictions apply: n The default VMkernel gateway must be able to route both the management and iSCSI traffic. n After you boot your host, you can use the iBFT-enabled network adapter only for iBFT. You cannot use the adapter for other iSCSI traffic. n Use the first physical network adapter for the management network. n Use the second physical network adapter for the iSCSI network. Make sure to configure the iBFT. n After the host boots, you can add secondary network adapters to both the management and iSCSI networks. Change iBFT iSCSI Boot Settings If settings, such as the IQN name, IP address, and so on, change on the iSCSI storage or your host, update the iBFT. This task assumes that the boot LUN and the data stored on the LUN remain intact. Procedure 1 Shut down the ESXi host. 2 Change iSCSI storage settings. 3 Update the iBFT on the host with the new settings. 4 Restart the host. The host boots using the new information stored in the iBFT. Troubleshooting iBFT iSCSI Boot The topics in this section help you to identify and solve problems you might encounter when using iBFT iSCSI boot. Loss of System's Gateway Causes Loss of Network Connectivity You lose network connectivity when you delete a port group associated with the iBFT network adapter. Problem A loss of network connectivity occurs after you delete a port group. Cause When you specify a gateway in the iBFT-enabled network adapter during ESXi installation, this gateway becomes the system's default gateway. If you delete the port group associated with the network adapter, the system's default gateway is lost. This action causes the loss of network connectivity. Solution Chapter 13 Booting from iSCSI SAN Do not set an iBFT gateway unless it is required. If the gateway is required, after installation, manually set the system's default gateway to the one that the management network uses. VMware, Inc. 125
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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
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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 and 122: 4 Select the I/O port to configure.
Page 123: 2 Change Boot Sequence in BIOS on p
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
Page 173 and 174: 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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