6.0.1
Table Of Contents
- vSphere Storage
- Contents
- About vSphere Storage
- Updated Information
- Introduction to Storage
- Overview of Using ESXi with a SAN
- Using ESXi with Fibre Channel SAN
- Configuring Fibre Channel Storage
- Configuring Fibre Channel over Ethernet
- Booting ESXi from Fibre Channel SAN
- Booting ESXi with Software FCoE
- Best Practices for Fibre Channel Storage
- Using ESXi with iSCSI SAN
- Configuring iSCSI Adapters and Storage
- ESXi iSCSI SAN Requirements
- ESXi iSCSI SAN Restrictions
- Setting LUN Allocations for iSCSI
- Network Configuration and Authentication
- Set Up Independent Hardware iSCSI Adapters
- About Dependent Hardware iSCSI Adapters
- Dependent Hardware iSCSI Considerations
- Configure Dependent Hardware iSCSI Adapters
- About the Software iSCSI Adapter
- Modify General Properties for iSCSI Adapters
- Setting Up iSCSI Network
- Using Jumbo Frames with iSCSI
- Configuring Discovery Addresses for iSCSI Adapters
- Configuring CHAP Parameters for iSCSI Adapters
- Configuring Advanced Parameters for iSCSI
- iSCSI Session Management
- Booting from iSCSI SAN
- Best Practices for iSCSI Storage
- Managing Storage Devices
- Storage Device Characteristics
- Understanding Storage Device Naming
- Storage Refresh and Rescan Operations
- Identifying Device Connectivity Problems
- Edit Configuration File Parameters
- Enable or Disable the Locator LED on Storage Devices
- Working with Flash Devices
- About VMware vSphere Flash Read Cache
- Working with Datastores
- Understanding VMFS Datastores
- Understanding Network File System Datastores
- Creating Datastores
- Managing Duplicate VMFS Datastores
- Upgrading VMFS Datastores
- Increasing VMFS Datastore Capacity
- Administrative Operations for Datastores
- Set Up Dynamic Disk Mirroring
- Collecting Diagnostic Information for ESXi Hosts on a Storage Device
- Checking Metadata Consistency with VOMA
- Configuring VMFS Pointer Block Cache
- Understanding Multipathing and Failover
- Raw Device Mapping
- Working with Virtual Volumes
- Virtual Machine Storage Policies
- Upgrading Legacy Storage Profiles
- Understanding Virtual Machine Storage Policies
- Working with Virtual Machine Storage Policies
- Creating and Managing VM Storage Policies
- Storage Policies and Virtual Machines
- Default Storage Policies
- Assign Storage Policies to Virtual Machines
- Change Storage Policy Assignment for Virtual Machine Files and Disks
- Monitor Storage Compliance for Virtual Machines
- Check Compliance for a VM Storage Policy
- Find Compatible Storage Resource for Noncompliant Virtual Machine
- Reapply Virtual Machine Storage Policy
- Filtering Virtual Machine I/O
- VMkernel and Storage
- Storage Hardware Acceleration
- Hardware Acceleration Benefits
- Hardware Acceleration Requirements
- Hardware Acceleration Support Status
- Hardware Acceleration for Block Storage Devices
- Hardware Acceleration on NAS Devices
- Hardware Acceleration Considerations
- Storage Thick and Thin Provisioning
- Using Storage Providers
- Using vmkfstools
- vmkfstools Command Syntax
- vmkfstools Options
- -v Suboption
- File System Options
- Virtual Disk Options
- Supported Disk Formats
- Creating a Virtual Disk
- Example for Creating a Virtual Disk
- Initializing a Virtual Disk
- Inflating a Thin Virtual Disk
- Removing Zeroed Blocks
- Converting a Zeroedthick Virtual Disk to an Eagerzeroedthick Disk
- Deleting a Virtual Disk
- Renaming a Virtual Disk
- Cloning or Converting a Virtual Disk or RDM
- Example for Cloning or Converting a Virtual Disk
- Migrate Virtual Machines Between DifferentVMware Products
- Extending a Virtual Disk
- Upgrading Virtual Disks
- Creating a Virtual Compatibility Mode Raw Device Mapping
- Example for Creating a Virtual Compatibility Mode RDM
- Creating a Physical Compatibility Mode Raw Device Mapping
- Listing Attributes of an RDM
- Displaying Virtual Disk Geometry
- Checking and Repairing Virtual Disks
- Checking Disk Chain for Consistency
- Storage Device Options
- Index
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“SAN Storage Backup Considerations,” on page 32
ESXi and SAN Use Cases
When used with a SAN, ESXi can benet from multiple vSphere features, including Storage vMotion,
Distributed Resource Scheduler (DRS), High Availability, and so on.
Using ESXi in conjunction with a SAN is eective for the following tasks:
Storage consolidation
and simplification of
storage layout
If you are working with multiple hosts, and each host is running multiple
virtual machines, the storage on the hosts is no longer sucient and external
storage is required. Choose a SAN for external storage to provide a simpler
system architecture along with other benets.
Maintenance with zero
downtime
When performing ESXi host or infrastructure maintenance, use vMotion to
migrate virtual machines to other host. If shared storage is on the SAN, you
can perform maintenance without interruptions to the users of the virtual
machines. Virtual machine working processes continue throughout a
migration.
Load balancing
You can add a host to a DRS cluster, and the host's resources become part of
the cluster's resources. The distribution and usage of CPU and memory
resources for all hosts and virtual machines in the cluster are continuously
monitored. DRS compares these metrics to an ideal resource utilization. Ideal
utilization takes into account the aributes of the cluster's resource pools and
virtual machines, the current demand, and the imbalance target. It then
performs (or recommends) virtual machine migrations accordingly.
Disaster recovery
You can use VMware High Availability to congure multiple ESXi hosts as a
cluster to provide rapid recovery from outages and cost-eective high
availability for applications running in virtual machines.
Simplified array
migrations and storage
upgrades
When you purchase new storage systems or arrays, use Storage vMotion to
perform live automated migration of virtual machine disk les from existing
storage to their new destination without interruptions to the users of the
virtual machines.
Specifics of Using SAN Storage with ESXi
Using a SAN in conjunction with an ESXi host diers from traditional SAN usage in a variety of ways.
When you use SAN storage with ESXi, keep in mind the following considerations:
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You cannot use SAN administration tools to directly access operating systems of virtual machines that
use the storage. With traditional tools, you can monitor only the VMware ESXi operating system. You
use the vSphere Web Client to monitor virtual machines.
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The HBA visible to the SAN administration tools is part of the ESXi system, not part of the virtual
machine.
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Typically, your ESXi system performs multipathing for you.
vSphere Storage
28 VMware, Inc.