Dell PowerEdge R740xd2 EMC PowerEdge Servers Troubleshooting Guide - Page 59

Troubleshooting hard drives, Troubleshooting multiple Drive failure

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Troubleshooting hard drives Prerequisites CAUTION: This troubleshooting procedure can erase data stored on the hard drive. Before you proceed, back up all files on the hard drive. CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product. NOTE: Ensure that the sleds internal SATA cables are connected correctly. Steps 1 Run the appropriate diagnostic test. See the Using system diagnostics section. Depending on the results of the diagnostics test, proceed as required through the following steps. 2 If your system has a RAID controller and your hard drives are configured in a RAID array, perform the following steps: a Restart the system and press F10 during system startup to run the Dell Lifecycle Controller, and then run the Hardware Configuration wizard to check the RAID configuration. See the Dell Lifecycle Controller documentation or online help for information about RAID configuration. b Ensure that the hard drives are configured correctly for the RAID array. c Take the hard drive offline and reseat the drive. d Exit the configuration utility and allow the system to boot to the operating system. 3 Ensure that the needed device drivers for your controller card are installed and are configured correctly. For more information, see the operating system documentation. 4 Restart the system and enter the System Setup. 5 Verify that the controller is enabled and the drives are displayed in the System Setup. Next step If the problem persists, see the Getting help section. Troubleshooting multiple Drive failure Multiple physical disk errors in a single array typically indicate a failure in cabling or connection and could involve the loss of data. You can recover the virtual disk after multiple physical disks become simultaneously inaccessible. Perform the following steps to recover the virtual disk. Prerequisite Follow the safety precautions to prevent electrostatic discharge. Steps 1 Turn Off the System. 2 Reseat the cable at both the ends. 3 Reseat the controller card. 4 Reseat the Drives and ensure that all the drives are present in the system. 5 Turn on the system and enter the CTRL+R utility. or and either import or clear the foreign configuration. 6 Press at the prompt to import the foreign configuration. 7 press to enter the BIOS configuration utility. If the virtual disk is redundant and transitioned to degraded state before going Offline, a rebuild operation starts automatically after the configuration is imported. If the virtual disk has gone directly to the Offline state due to a cable pull or power loss situation, the virtual disk is imported in its Optimal state without a rebuild occurring. You can also use the BIOS Configuration Utility or Dell OpenManage storage management application to perform a manual rebuild of multiple physical disks. 8 If the problem is not resolved, refer to Troubleshooting Hard drives section in the Dell EMC PowerEdge Servers Troubleshooting Guide. Troubleshooting hardware issues 59

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Troubleshooting hard drives
Prerequisites
CAUTION:
This troubleshooting procedure can erase data stored on the hard drive. Before you proceed, back up all
files
on the
hard drive.
CAUTION:
Many repairs may only be done by a
certified
service technician. You should only perform troubleshooting and simple
repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that are shipped with your product.
NOTE:
Ensure that the sleds internal SATA cables are connected correctly.
Steps
1
Run the appropriate diagnostic test. See the Using system diagnostics section.
Depending on the results of the diagnostics test, proceed as required through the following steps.
2
If your system has a RAID controller and your hard drives are
configured
in a RAID array, perform the following steps:
a
Restart the system and press F10 during system startup to run the Dell Lifecycle Controller, and then run the Hardware
Configuration
wizard to check the RAID
configuration.
See the Dell Lifecycle Controller documentation or online help for information about RAID
configuration.
b
Ensure that the hard drives are
configured
correctly for the RAID array.
c
Take the hard drive
offline
and reseat the drive.
d
Exit the
configuration
utility and allow the system to boot to the operating system.
3
Ensure that the needed device drivers for your controller card are installed and are
configured
correctly. For more information, see the
operating system documentation.
4
Restart the system and enter the System Setup.
5
Verify that the controller is enabled and the drives are displayed in the System Setup.
Next step
If the problem persists, see the Getting help section.
Troubleshooting multiple Drive failure
Multiple physical disk errors in a single array typically indicate a failure in cabling or connection and could involve the loss of data. You can
recover the virtual disk after multiple physical disks become simultaneously inaccessible. Perform the following steps to recover the virtual
disk.
Prerequisite
Follow the safety precautions to prevent electrostatic discharge.
Steps
1
Turn
Off
the System.
2
Reseat the cable at both the ends.
3
Reseat the controller card.
4
Reseat the Drives and ensure that all the drives are present in the system.
5
Turn on the system and enter the CTRL+R utility. or and either import or clear the foreign
configuration.
6
Press <"F"> at the prompt to import the foreign
configuration.
7
press <"C"> to enter the BIOS
configuration
utility.
If the virtual disk is redundant and transitioned to
degraded
state before going
Offline
, a rebuild operation starts automatically after
the
configuration
is imported. If the virtual disk has gone directly to the
Offline
state due to a cable pull or power loss situation, the
virtual disk is imported in its
Optimal
state without a rebuild occurring. You can also use the BIOS
Configuration
Utility or Dell
OpenManage storage management application to perform a manual rebuild of multiple physical disks.
8
If the problem is not resolved, refer to
Troubleshooting Hard drives section
in the Dell EMC PowerEdge Servers Troubleshooting Guide.
Troubleshooting hardware issues
59