Dell 745N Recovering From a Hardware-RAID Operating System Failure , Recreating a Hardware-RAID NAS System Data Volume

See your Installation and Troubleshooting Guide for information about removing and replacing drives.
4. Insert the new hard drives in the same location as the failed hard drives.
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5. Replace the front bezel.
6. Recreate the virtual disks as explained in "Recreating Virtual Disks."
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Recreating Virtual Disks
1. Turn on the NAS system.
2. When prompted during POST, press <Ctrl><A> to start the CERC BIOS Configuration Utility.
3. Select Array Configuration Utility.
4. Select Create Arrays in the Array Configuration Utility screen and press <Enter>.
5. Select all four hard drives to create the array.
6. When the Array Properties Menu appears, select RAID 5.
7. Press <Enter>.
8. Type an array label.
9. Press <Enter>.
10. Highlight Array Size and press <Enter>.
11. Type 10 to specify a 10-GB partition when creating the operating system array or type the desired size for the data array.
12. Select the array settings by pressing <Enter>.
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13. Select Done and press <Enter> to complete the RAID 5 configuration.
14. Press any key to return to the main menu.
15. Press <Esc> twice.
16. Select Yes to exit the utility and press <Enter>.
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The system automatically reboots.
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Recovering From a Hardware-RAID Operating System Failure
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If the operating system for your hardware-RAID NAS system fails, reinstall the operating system using the procedure in "Reinstalling the Operating System."
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Recreating a Hardware-RAID NAS System Data Volume
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After reinstalling the operating system, ensure that the RAID-5 data volume is present as explained in "Checking Partition or Volume Properties" in "Disk and
Volume Management." If the RAID-5 data volume is not present, recreate the volume by performing the following steps:
1. Log in to the NAS Manager.
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See "Logging Into the NAS Manager" in "NAS Manager."
2. Click Maintenance, and then click Remote Desktop.
3. Log in to the system as an administrator.
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4. Click Start, point to Programs→ Administrative Tools, and then click Computer Management.
NOTE: Ensure that the new hard drives are the same size as or larger than the failed drives.
NOTE: Enabling write cache will improve performance, but may lead to possible data loss if a sudden power outage occurs. Dell recommends that
you use a UPS with the NAS system.
NOTE: The default administrator user name is administrator and the default password is
powervault.