System information

Managing ESX/ESXi Systems That Use
SAN Storage 6
This section helps you manage your ESX/ESXi system, use SAN storage effectively, and perform
troubleshooting. It also explains how to find information about storage devices, adapters, multipathing, and
so on.
This chapter includes the following topics:
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“Viewing Storage Adapter Information,” on page 51
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“Viewing Storage Device Information,” on page 52
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“Viewing Datastore Information,” on page 54
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“Resolving Display Issues,” on page 54
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“N-Port ID Virtualization,” on page 57
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“Path Scanning and Claiming,” on page 60
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“Path Management and Manual, or Static, Load Balancing,” on page 63
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“Path Failover,” on page 64
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“Set Device Driver Options for SCSI Controllers,” on page 65
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“Sharing Diagnostic Partitions,” on page 65
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“Disable Automatic Host Registration,” on page 66
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“Avoiding and Resolving SAN Problems,” on page 66
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“Optimizing SAN Storage Performance,” on page 67
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“Resolving Performance Issues,” on page 68
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“SAN Storage Backup Considerations,” on page 71
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“Layered Applications,” on page 72
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“Managing Duplicate VMFS Datastores,” on page 73
Viewing Storage Adapter Information
In the vSphere Client, you can display storage adapters that your host uses and review their information.
When you list all available adapters, you can see their models, types, such as Fibre Channel, Parallel SCSI, or
iSCSI, and, if available, their unique identifiers.
As unique identifiers, Fibre Channel HBAs use World Wide Names (WWNs).
When you display details for each Fibre Channel HBA, you see the following information.
VMware, Inc.
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