Users Guide
Table Of Contents
- Contents
- About This Guide
- About Your Storage Array
- Access Virtual Disk
- Out-of-Band and In-Band Management
- Adding Storage Arrays
- Naming Storage Arrays
- Removing Storage Arrays
- Setting Up Your Storage Array
- Storage Array Support Data
- Setting a Password
- Resetting a Password
- Changing Expansion Enclosure ID Numbers
- Configuring Alert Notifications
- Battery Settings
- Starting or Restarting the Host-Agent Software in Windows
- Starting or Restarting the Host-Agent Software in Linux
- Using iSCSI
- Using the iSCSI Tab
- Changing the iSCSI Target Authentication
- Entering Mutual Authentication Permissions
- Changing the iSCSI Target Identification
- Changing the iSCSI Target Discovery (Optional)
- Configuring the MD3000i iSCSI Host Ports
- Viewing or Ending an iSCSI Session
- Viewing iSCSI Statistics and Setting Baseline Statistics
- Edit, Remove, or Rename Host Topology
- Event Monitor
- About Your Host
- Disk Groups and Virtual Disks
- Premium Feature-Snapshot Virtual Disks
- Premium Feature-Virtual Disk Copy
- Premium Feature-32 Partitions
- Firmware Downloads
- Troubleshooting Problems
- Enclosure Hardware Replacement, Maintenance, and Configuration Considerations
- Index

Hardware Considerations 113
A
Enclosure Hardware Replacement,
Maintenance, and Configuration
Considerations
Removing and Inserting Enclosure Management
Modules on Attached Expansion Enclosures
The following procedures describe how to safely remove and insert an
enclosure management module (EMM) from an expansion enclosure
attached to the MD3000/MD3000i.
NOTICE: Failure to follow these guidelines may result in a physical disk failing
during removal and/or inadvertent removal of its redundant data path.
Removing an EMM from the Expansion Enclosure
1
Check the Recovery Guru to confirm that there is no loss of physical disk
path redundancy.
• If there is no loss of redundancy, check the channel. If it matches the
EMM you are removing, you can safely remove it now.
• If redundancy is lost, run the following command. Note that
channel [1]
is the degraded channel.
“set physicalDiskChannel channel [1]
status = optimal;”
2
Verify that the path to the channel is restored. The Recovery Guru may
take several minutes to update.
Inserting an EMM into an Expansion Enclosure
1
Make sure to always insert the EMM without SAS cables attached.
After the EMM is inserted, wait at least 30 seconds before attaching the
SAS cables.