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Sun Blade Storage Module M2 Product Documentation
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Document Information

Preface

Product Information Web Site

Related Books

About This Documentation (PDF and HTML)

Documentation Comments

Change History

Hardware Installation

Overview of the Sun Blade Storage Module M2

System Requirements

Installing the Storage Module Into the Chassis

Storage Module Indicators

Assigning and Managing Storage

Product Notes

Overview of the Sun Blade Storage Module M2 Product Notes

Supported Firmware, Hardware and Software

Hardware Issues

Solaris Operating System Issues

Linux Operating System Issues

Administration

Assigning Storage to Hosts

Managing Storage

Performing Maintenance and Hot Plug Actions

Preparing for Hot Plug Actions

Hot Plug Actions and Outcomes

Recovering Zoning Configurations

How to Recover Zoning Configurations Using the CMM ILOM Web Interface

How to Recover Zoning Configurations Using the CMM ILOM CLI

Upgrading Storage Module Firmware

How to Upgrade Firmware Using the CMM ILOM Web Interface

How to Upgrade Firmware Using the CMM ILOM CLI

Importing Existing Virtual Drives to a Replacement REM

Storage Module Sensors and Indicators

Troubleshooting

Service

Introduction to the Sun Blade Storage Module M2

Maintaining the Sun Blade Storage Module M2

Diagnosing Storage Module Faults

Specifications

Index

Hot Plug Actions and Outcomes

Since information about how the Sun Blade Storage Module M2 is configured is stored internally (on the SAS expanders), removal and replacement activities can affect saved host-to-storage access configurations. This section describes the implications of certain hot plug actions, and how they can be safely performed.


Caution

Caution - When performing hot plug actions, you must wait for each action that causes a change in state to the chassis (such as the insertion or removal of storage module, NEMs or server blades) to be acknowledged by the CMM. Depending on the device, this can take a minute or two. Detailed information about hot plug events are logged in the CMM ILOM event log. For more about viewing events, see Viewing the CMM ILOM Event Log.



Note - If your chassis has only one NEM, it must be installed in NEM 0. Operating a chassis without a NEM in NEM 0 is not supported.


The following table describes possible hot plug actions and expected outcomes for the storage module and various SAS devices.

Action
Outcome
User Intervention
Insert a new storage module into an empty slot in chassis.
SAS zoning configurations on the storage module expanders are deleted. The storage module is then automatically registered with the CMM so that any future saved configurations will remain unchanged if the storage module is removed and reinserted in the same slot.
  • Use the CMM zoning utility to assign storage module resources to SAS-2 server blades.
  • Use the host REM management software to configure virtual drives.

Remove and insert a previously zoned storage module into the same chassis slot.
Since the storage module is already registered with the CMM, storage module zoning configurations will remain unchanged.
The host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.
Remove and insert a previously zoned storage module into a different chassis slot.
Upon insertion into the chassis, SAS zoning configurations on the storage module expanders are deleted. The storage module is then automatically registered with the CMM so that any future saved configurations will remain unchanged if the storage module is removed and reinserted in the same slot.

Note - Although existing zoning information is deleted, actual data on the disks in the storage module are preserved.


  • Restore zoning configurations from a backup of CMM configurations.

    —Or—

  • Use CMM zoning utility to re-assign storage module resources to SAS-2 server blades.

  • The host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.

Replace a failed storage module and move the previously zoned storage to the replacement storage module (replacing disks from the failed module into identical slots of the replacement module).
Upon insertion into the chassis, SAS zoning configurations on the storage module expanders are deleted. The storage module is then automatically registered with the CMM so that any future saved configurations will remain unchanged if the storage module is removed and reinserted in the same slot.

Note - Although the failed module's zoning information is lost, actual data on the disks in the storage module are preserved.


  • Restore zoning configurations from a backup of CMM configurations.

    —Or—

  • Use CMM zoning utility to re-assign storage module resources to SAS-2 server blades.

  • The host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.

Insert a new hard disk into an empty storage module slot that has never been occupied or assigned to a server module.
The new drive will be seen by the CMM as unassigned storage.
  • Use the CMM zoning utility to assign the new drive to a SAS-2 server module.
  • Use the host REM management software to add the drive to a virtual drive or as a hot spare. Refer to the LSI MegaRAID SAS Software User's Guide for details.

Insert a hard disk into a previously occupied slot in the storage module that is currently assigned to a server module.
The CMM will reserve the drive slot host assignment. If the drive is a replacement, it will be discovered by the assigned host REM and be rebuilt into the current RAID configuration if no hot spare was available.
  • If the drive is a replacement drive and the original drive was not assigned to a RAID configuration, the replacement drive will be available to the OS for partitioning.
  • If the drive is the same drive that was removed, and the virtual drive it was removed from had no hot spare, the host REM might identify the drive as a foreign configuration. A foreign configuration can be imported using the REM management software. Refer to the LSI MegaRAID SAS Software User's Guide for details.

Insert a second SAS-2 NEM into an empty chassis slot.
The SAS-2 NEM is automatically registered with the CMM. The second SAS-2 NEM obtains zoning configurations from the first SAS-2 NEM. Any future saved configurations will remain unchanged if the SAS-2 NEM is removed and reinserted in the same slot.

Note - The NEM external SAS port host assignments will need to be manually reconfigured.


  • When using a SAS-2 REM configured for RAID, dual path support to storage will automatically be enabled.
  • When using a SAS-2 REM not configured for RAID, dual path support might need to be configured at the OS level. Check your OS documentation for information on enabling SAS multipath support.

  • Use the Sun Blade Zone Manager component of the CMM ILOM to assign host access to the external NEM SAS ports.

Remove and insert a SAS–2 NEM into the same chassis slot.
Since the SAS–2 NEM is already registered with the CMM, NEM zoning configurations will remain unchanged.
The host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.
Remove and insert a SAS–2 NEM into a different chassis slot.
Upon insertion into the chassis, SAS zoning configurations on the SAS-2 NEM expanders are deleted. The SAS-2 NEM is automatically registered with the CMM. Any future saved configurations will remain unchanged if the SAS-2 NEM is removed and reinserted in the same slot.

Note - The NEM external SAS port host assignments will need to be manually reconfigured.


  • Restore zoning configurations from a backup of CMM configurations.

    —Or—

  • Use the CMM zoning utility to re-assign storage module resources to SAS-2 server blades.

  • The host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.

  • Use the Sun Blade Zone Manager component of the CMM ILOM to assign host access to the external NEM SAS ports.

Replace a failed SAS-2 NEM.
  • If there are two SAS-2 NEMs, upon insertion into the chassis, the replacement SAS-2 NEM is automatically registered with the CMM. The replacement SAS-2 NEM will obtain zoning configurations from the first SAS-2 NEM. Any future saved configurations will remain unchanged if the SAS-2 NEM is removed and reinserted in the same slot.

    Note - The NEM external SAS port hosts assignments will need to be manually reconfigured.


  • If there was only one SAS-NEM, upon insertion into the chassis all the SAS zoning configurations in the entire chassis are deleted. The SAS-2 NEM is automatically registered with the CMM. Any future saved configurations remain unchanged if the SAS-2 NEM is removed and reinserted into the same slot.

  • If there were two SAS-NEMs, use the Sun Blade Zone Manager component of the CMM ILOM to assign host access to the external NEM SAS ports.
  • If there was only one SAS-NEM, restore zoning configurations from a backup of CMM configurations.

    —Or—

  • If there was only one SAS-NEM, use the CMM zoning utility to re-assign storage module resources to SAS-2 server blades.

  • If there was only one SAS-NEM, the host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.

Connect a SAS-2 JBOD to the SAS-2 NEM external SAS ports.
Not currently supported.
Do not connect external SAS storage to the SAS-NEM external SAS ports.
Insert a new SAS-2 server module into an empty slot in chassis.
The server module is automatically registered with the CMM. The server module can be assigned storage module resources. Any saved host-to–storage zoning configurations remains unchanged if the server module is removed and reinserted in the same slot.

Note - The stored configurations persist indefinitely. If a slot previously contained a SAS-2 server module but is currently empty, see the action for replacing a server module with a new server module.


  • Use the CMM zoning utility to assign storage module resources to SAS-2 server blades.
  • Use the host REM management software to configure virtual drives.

Remove and insert a previously zoned server module into the same chassis slot.
Since the server module is already registered with the CMM, host-to-storage zoning configurations will remain unchanged.
The host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.
Remove and insert a previously zoned server module into a different slot in the chassis.
Upon insertion into the chassis, host-to-storage zoning configurations on the storage module expanders are deleted for that server module. The server module is then automatically registered with the CMM so that any future saved configurations will remain unchanged if the server module is removed and reinserted in the same slot.

If you move a server module to a different slot then return it to its original slot, the zoning information from the original slot will be gone.


Note - Although existing zoning information is deleted, actual data on the disks in the storage module are preserved.


  • Restore zoning configurations from a backup of CMM configurations.

    —Or—

  • Use CMM zoning utility to re-assign storage module resources to SAS-2 server blades.

  • The host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.

Replace a server module with a new server module.
Upon insertion into the chassis, host–to–storage zoning configurations on the storage module expanders for the old server module are deleted. The new server module is then automatically registered with the CMM so that any future saved configurations will remain unchanged if the server module is removed and reinserted in the same slot.

Note - Although the failed module's zoning information is lost, actual data on the disks in the storage module are preserved.


  • Restore zoning configurations from a backup of CMM configurations.

    —Or—

  • Use CMM zoning utility to re-assign storage module resources to SAS-2 server blades.

  • The host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.

Remove a previously zoned server module for servicing (such as CPU, memory, or REM replacement), after servicing, reinsert the server module into the same chassis slot.

Note - While servicing the server module, a slot filler can be placed in the slot to maintain proper chassis cooling. Do not use another server module.


Since the server module is already registered with the CMM, host-to-storage zoning configurations will remain unchanged.
The host REM might identify the storage module virtual drives as a foreign configuration (MegaRAID), or inactive (Fusion-MPT IR). A foreign or inactive configuration can be recovered using the REM management software. For MegaRAID, use the import feature described in the LSI MegaRAID SAS Software User's Guide. For Fusion-MPT IR, use the activate feature described in the LSI SAS2 Integrated RAID User's Guide.