Seagate ST39173WC Specifications download pdf (Page 97)

Chapter 6 Troubleshooting Common Problems 6-7

■ Adding drives from another A3x00 while the system is powered down can cause

loss of LUN configuration as described in bug 4133673.

6.3 Rebuilding a Missing LUN Without

Reinitialization

This section covers the following topics:

■ Section 6.3.1, “Setting the VKI_EDIT_OPTIONS” on page 6-7

■ Section 6.3.2, “Resetting the VKI_EDIT_OPTIONS” on page 6-9

■ Section 6.3.3, “Deleting a LUN With the RAID Manager GUI” on page 6-9

■ Section 6.3.4, “Recreating a LUN With the RAID Manager GUI” on page 6-9

■ Section 6.3.5, “Disabling the Debug Options” on page 6-10

Rebuilding a missing LUN without reinitalizing it can be dangerous, because data

might get lost permanently. Use the following procedure only as a last resort after all

attempts of recovery have failed.

The process of recreating a missing LUN or deleting a LUN if needed requires you to

use the controller serial port and the RAID Manager GUI. You might need to recreate

a LUN when it is missing after a reboot of a controller.

Before you begin to recreate a LUN, make sure of the following:

■ A copy of the module profile prior to the disaster is available before attempting to

recreate a LUN.

■ Use the procedures for recreating a LUN if you know that the data is still intact.

Note – If you are recreating LUN 0 and if LUN 0 is greater than 10MB (for example

36GB RAID 5), and the module profile shows that it is only equal to 10MB, stop. Do

not proceed with this procedure. You will not be able to recover LUN 0.

6.3.1 Setting the VKI_EDIT_OPTIONS

If the system has dual controllers, set the VKI_EDIT_OPTIONS on both controllers

as follows.

1. At the RAID controller shell prompt, enter:

VKI_EDIT_ OPTIONS

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Seagate ST39173WC Specifications Page 97