ViPR 2.2 - Set the Host Mode and Host Mode Option for HDS Storage

Table of Contents

Overview

ViPR System Administrators can learn about the Hitachi Data Systems Host Mode and Host Mode Option, how ViPR sets the Host Mode and Host Mode Option, the ViPR configuration requirements for ViPR to apply the settings, and the steps to customize the Host Mode Option using the ViPR UI.

Host Mode and Host Mode Options

Host Modes are HDS flags which are set on HDS host groups when an HDS storage volume is exported to the host group. The Host Mode is used to optimize the connection and communication between HDS storage and the host to which the HDS volume has been exported.

The Host Mode Options are a set of flags which can be enabled or disabled to further optimize the Host Mode set on the HDS host groups.

Refer to the Hitachi Data Systems documentation for details about the HDS Host Mode, and Host Mode Options.

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How ViPR sets the Host Mode

By default, when ViPR is used to export an HDS volume to an AIX, ESX, HP-UX, Linux, or Windows host, ViPR sets the following Host Mode on the host group by determining host operating system details.

Host Mode settings for "Other" hosts

When ViPR is used to export an HDS volume to a host that was added to ViPR as "Other," or to a host of which ViPR cannot determine the type, the 00 Standard Host Mode is set on the host by the Hitachi HiCommand DM. 00 Standard is the HiCommand DM default Host Mode.

Changing the Host Mode

The ViPR Host Mode settings are automatically set by ViPR during an export operation, and you cannot change the ViPR Host Mode settings. Once ViPR has set the Host Mode on a host, you can use Hitachi Storage Navigator to change the Host Mode on the host.

Prior to ViPR 2.2

ViPR did not set the Host Mode for hosts prior to ViPR 2.2. However, HiCommand Device Manager sets the 00 Standard Host Mode as the default on all HDS host groups.

If a host to which an HDS volume was exported by ViPR, prior to ViPR 2.2, is re-used by ViPR 2.2 or higher to export another HDS volume, the Host Mode will not be set by ViPR on the host.

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How ViPR sets the Host Mode Option

By default, when ViPR is used to export an HDS volume to an AIX, ESX, HP-UX, Linux, or Windows host, ViPR sets the following Host Mode Options on the host group.

Note Image
Refer to Hitachi storage system provisioning documentation for details about the Host Mode Options.

Host Mode Option settings for "Other," hosts

ViPR does not set the Host Mode Option when ViPR is used to export an HDS volume to a host that was added to ViPR as "Other," or to a host of which ViPR cannot determine the type.

Changing the Host Mode Option

The Host Mode Option is set on the host group the first time you export an HDS volume to the host. Once ViPR has set the Host Mode Option on the host group, the Host Mode Option cannot be changed by ViPR for example:

Once the HDS volume has been exported to a host from ViPR, you can change the Host Mode Setting from Hitachi Storage Navigator. If ViPR is used to export another HDS volume to the same host after the Host Mode Option has been changed from Storage Navigator, ViPR will reuse the Storage Navigator settings in the export.

Prior to ViPR 2.2

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Customize the Host Mode Option

The Host Mode Option is customized from the Controller Configurations page.

Before you begin

Only ViPR System Administrators can customize the Host Mode Option.

Procedure

  1. Go to the Physical Assets > Controller Config > HDS tab.
  2. Select the Host Mode Option, from the drop-down box.
  3. Click Add.
  4. Select Host Type in the Scope Type column.
  5. Select the type of operating system in the Scope Value column.
  6. Leave the defaults, or enter the numeric value for the Host Mode Option in the Values column.
  7. Click Save.
    Note Image
    Even though the UI shows multiple entries for the same Host Type, only the last one is actually used by ViPR.

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