Dell 745N Recovering From a Hardware-RAID Operating System Failure, Recreating Virtual Disks

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.

NOTE: Ensure that the new hard drives are the same size as or larger than the failed drives.

5.Replace the front bezel.

6.Recreate the virtual disks as explained in "Recreating Virtual Disks."

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>.

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.

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>.

The system automatically reboots.

Recovering From a Hardware-RAID Operating System Failure

If the operating system for your hardware-RAID NAS system fails, reinstall the operating system using the procedure in "Reinstalling the Operating System."

Recreating a Hardware-RAID NAS System Data Volume

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.

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.

NOTE: The default administrator user name is administrator and the default password is powervault.

4.Click Start, point to Programs→ Administrative Tools, and then click Computer Management.