Download VCP6-DCV Official Cert Guide PDF

TitleVCP6-DCV Official Cert Guide
File Size18.5 MB
Total Pages108
Table of Contents
Title Page
Copyright Page
Chapter 4 Storage, Part 1
	“Do I Know This Already?” Quiz
	Foundation Topics
	Objective 3.1—Manage vSphere Storage Virtualization
		Storage Protocols
			Identify Storage Adapters and Devices
			Display Storage Adapters for a Host
			Storage Devices for an Adapter
			Fibre Channel Protocol
			Fibre Channel over Ethernet Protocol
			iSCSI Protocol
			NFS Protocol
			Authentication NFSv4.1 with Kerberos Authentication
			Native Multipathing and Session Trunking
			In-band, Mandatory, and Stateful Server-Side File Locking
			Identify Storage Naming Conventions
			Identify Hardware/Dependent Hardware/Software iSCSI Initiator Requirements
		Discover New Storage LUNs
		Configure FC/iSCSI/FCoE LUNs as ESXi Boot Devices
		Create an NFS Share for Use with vSphere
		Enable/Configure/Disable vCenter Server Storage Filters
			Configure/Edit Hardware/Dependent Hardware Initiators
			Enable/Disable Software iSCSI Initiator
			Configure/Edit Software iSCSI Initiator Settings
			Determine Use Case for Hardware/Dependent Hardware/Software iSCSI Initiator
			Configure iSCSI Port Binding
			Enable/Configure/Disable iSCSI CHAP
		Determine Use Cases for Fibre Channel Zoning
		Compare and Contrast Array and Virtual Disk Thin Provisioning
			Array Thin Provisioning
			Virtual Disk Thin Provisioning
			Determine Use Case for and Configure Array Thin Provisioning
	Exam Preparation Tasks
	Review All the Key Topics
	Complete the Tables and Lists from Memory
	Definitions of Key Terms
	Answer Review Questions
Document Text Contents
Page 1 download a free sample chapter

Page 2

Official Cert Guide

(Exam #2VO-621)

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172 VCP6-DCV Official Cert Guide (Exam #2VO-621)

After you click OK, a new box pops up, with check boxes for Scan for New Stor-
age Devices (to scan all host bus adapters looking for new LUNs) and Scan for
New VMFS Volumes (to rescan all known storage devices for new VMFS volumes
that have been added since the last scan).

Configure FC/iSCSI/FCoE LUNs as ESXi Boot Devices

You can set up your ESXi Host to boot from a FC or iSCSI LUN instead of boot-
ing from a local hard disk. The host’s boot image is stored on the LUN that is being
used exclusively for that ESXi Host. Thus, vSphere supports an ESXi Host’s ability to
boot from a LUN on a SAN. The ability of an ESXi Host to boot from a SAN is sup-
ported using FC and iSCSI. This capability does require that each host have unique
access to its own LUN. You also need to enable the boot adapter in the host BIOS.

NOTE When you boot from a SAN, each host must have its own boot LUN.


In order for a Fibre Channel (FC) device to boot from a SAN, the BIOS of the FC
adapter must be configured with the World Wide Name (WWN) and LUN of the
boot device. In addition, the system BIOS must designate the FC adapter as a boot


It is possible to boot an ESXi Host using an independent hardware iSCSI, depen-
dent hardware iSCSI, or software iSCSI initiator. If your ESXi Host uses an inde-
pendent hardware iSCSI initiator, you need to configure the adapter to boot from
the SAN. How you configure the adapter varies, depending on the vendor of the

If you are using a dependent hardware iSCSI or software iSCSI initiator, you must
have an iSCSI boot-capable network adapter that supports the iSCSI Boot Firm-
ware Table (iBFT) format. iBFT is a protocol defined in Advanced Configuration
and Power Interface (ACPI) that defines parameters used to communicate between
the storage adapter and the operating system. This is needed because the ESXi Host
needs to load up enough information from the firmware to discover the iSCSI LUN
over the network.

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Chapter 4: Storage, Part 1 173


You can boot an ESXi Host from a Fibre Channel over Ethernet (FCoE) network
adapter. The FCoE initiator must support the FCoE Boot Firmware Table (FBFT)
or FCoE Boot Parameter Table (FBPT). During the ESXi boot process, the param-
eters to find the boot LUN over the network are loaded into the system memory.

Create an NFS Share for Use with vSphere

The Network File System (NFS) is a client/server service that allows users to view,
store, and modify files on a remote system as though they were on their own local
computer. NFS allows systems of different architectures running different operat-
ing systems to access and share files across a network. The ESXi Host is the NFS
client, while typically a SAN device such as EMC or NetApp acts as an NFS server.
The NFS server shares the files, and the ESXi Host accesses the shared files over
the network. How you create an NFS server and set up NFS shares depend on the
system that is being used as the NFS server.

Enable/Configure/Disable vCenter Server Storage Filters

vCenter Server provides storage filters to avoid presenting storage that should be
avoided due to performance problems or unsupported storage devices. The vSphere
environment provides four storage filters that can affect the action of the vCenter
Server when scanning storage. Without these filters, when vCenter Server is scan-
ning for storage, all storage that is found could be presented to vSphere, even if it
is in use. The filters prevent this type of unwanted activity. However, some specific
use cases can affect what storage devices are found during scanning. By default, the
storage filters are set to true and are designed to prevent specific storage datastore
problems. Except in certain situations, it is best to leave the storage filters in their
enabled state. Table 4-2 displays the vCenter Server storage filters and their respec-
tive Advanced Setting keys:

Table 4-2 vCenter Server Storage Filters

Filter Advanced Setting Key

RDM config.vpxd.filter.rdmFilter

VMFS config.vpxd.filter.vmfsFilter

Host Rescan config.vpxd.filter.hostRescanFilter

Same Host and Transports config.vpxd.filter.SameHostAndTransportsFilter

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CPU contention issues, 451-452

CPU limits, 452-454

CPU metrics, 463-465

CPU monitoring, 450

CPU reservations, 452-454

CPU shares, 452-454

ESXTOP, 467-468, 471-473

EVC, 473-477

memory contention issues, 451-452

memory limits, 452-454

memory metrics, 455-462

memory monitoring, 450

memory reservations, 452-454

memory shares, 452-454

metrics, 454-455

network metrics, 465

overview graphs, 483-484

power management policies, 489-490


storage metrics, 466-467

troubleshooting, 450

vRealize Operations Manager, 477-479,

permissions, 6-10
physical network adapters, troubleshoot-

ing, 427-428
port groups, troubleshooting, 426-427
scanning objects, 269
snapshots, 325
SSO lists, exporting, 7

monitoring, 399, 402-404

troubleshooting, 399, 402-407, 410,

verifying configurations, 404-407, 410

support bundles, 365
TPS, 456

CPU contention issues, 451-452

CPU limits, 452-454

CPU metrics, 463-465

CPU monitoring, 450

CPU reservations, 452-454

CPU shares, 452-454

ESXTOP, 467-468, 471-473

EVC, 473-477

memory contention issues, 451-452

memory limits, 452-454

memory metrics, 455-462

memory monitoring, 450

memory reservations, 452-454

memory shares, 452-454

metrics, 454-455

network configurations, 404-407, 410

network metrics, 465

network resources, 399

networks, 425-426

overview graphs, 483-484

performance, 450

physical network adapters, 427-428

port groups, 426-427


storage, 423-425

storage configurations, 404-407, 410

storage metrics, 466-467

storage resources, 399

vCenter Server events, 484-489

vCenter Server tasks, 484-489

virtual switches, 426-427

vRealize Operations Manager, 477-479,

unexposed features, 27

PSC, 431

troubleshooting, 430-441

upgrading to vSphere 6.0
baselines, 267

configuring download sources, 264

download repository setup, 265

ESXi Host images, 265-266

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760 vSphere

ESXi Host upgrade requirements, 265

process of, 284-285

remediating objects, 269-270

scanning vSphere objects, 269

staging patches/extensions, 269

UMDS and download repository setup,

upgrading ESXi Hosts, 273-276

upgrading vCenter Server, 276-284

upgrading vDS, 270

upgrading virtual machine hardware,

upgrading VMware Tools, 271-272

vSphere Web Client, 263

VUM, 263-264

vCenter Server security, 40
virtual machine security policies, 28
virtual switches, troubleshooting, 426-427
VMFS metadata, troubleshooting,

VOMA, 428-430
vROps, 399, 402-404
vSphere Inventory Hierarchy, permis-

sions, 10-13
vSphere Realize Operations, 483
vSphere Replication

configuring, 340-341

deploying, 340

failback operations, 346

FastLZ compression library, 321

installing, 340

integrating VMCA with, 341

RPO, 323-324

virtual machines, 342-346

VRA, 341, 347

VRS, 341, 347

vSphere Web Client
ballooning, 457

compression, 458

CPU metrics, 463

ESXi server configurations, 511

network metrics, 465

overview graphs, 483-484

SIOC monitoring, 250-251

storage metrics, 467

swapping, 459-461

TPS, 456

troubleshooting performance, 451-452

VMFS datastores, 240

vSphere 6.0 upgrades, 263

vSS (vSphere Standard Switches)
capabilities of, 65-66
jumbo frames, 123-127
quiescing, 342
vDS versus, 65-66

VUM (vCenter Upgrade Manager),
263-264, 273

VVOL (Virtual Volumes), 231
creating, 201, 204
PE, 206
SP, 196, 202, 206, 217
VASA storage provider, 194-196,

201-202, 206


Windows Performance Monitor,
troubleshooting performance, 450

Windows vCenter Server
embedded backups, 279
pre-upgrade updates, 281

WSFC (Windows Server Failover
Clusters), 44, 237

WWN (World Wide Names) and
adapters, 166


XCOPY (full copy) command (VAAI),

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