ViPR 2.2 - Set the Host Mode and Host Mode Option for HDS Storage
Table of Contents
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.Back to Top
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.Back to Top
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:
- If an HDS volume was exported to a host that was added to ViPR as “Other,” the Host Mode Option configured in ViPR is not set on the host. If the type of host is changed in ViPR from Other, to AIX, ESX, HP-UX, Linux, or Windows, and ViPR is used to export another HDS volume to the same host, the Host Mode Options which are configured in ViPR will not be set on the host by ViPR, since it was not set on the host group the first time the volume was exported from ViPR to that same host.
- If an HDS volume was exported to an AIX, ESX, HP-UX, Linux, or host, the Host Mode Options currently configured in ViPR are set on the host. If the Host Mode Options are changed in ViPR after the export, and ViPR is used to export another HDS volume to the same host, the original Host Mode Options remain on the host, and are not configured with the new Host Mode Options.
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
- The Host Mode options are only set to new host groups created using ViPR 2.2 and higher.
- Prior to ViPR 2.2, ViPR did not set any Host Mode Options on HDS host groups.
- If a host group, that was created prior to ViPR 2.2, is re-used by ViPR, the ViPR Host Mode Options are not set by ViPR on the host group created prior to ViPR 2.2.
Before you begin
Only ViPR System Administrators can customize the Host Mode Option.
- Go to the tab.
- Select the Host Mode Option, from the drop-down box.
- Click Add.
- Select Host Type in the Scope Type column.
- Select the type of operating system in the Scope Value column.
- Leave the defaults, or enter the numeric value for the Host Mode Option in the Values column.
- Click Save.
Even though the UI shows multiple entries for the same Host Type, only the last one is actually used by ViPR.