38
TeraPac User Operation and Maintenance Guide
The Recovery Process
Once you have mated a TeraPac to a MaxPac, you should always have them connected together
when you power-up the MaxPac. If you do happen to forget to connect the TeraPac (or run into a
similar circumstance such as failing to have the TeraPac supplied with power, for example), then the
MegaRAID controller card will become “confused” when it fails to see the expected configuration.
In this Chapter we will walk through the process of recovering from this situation. For the purposes of
these discussions, we will assume a system configuration identical to those discussed in Chapters 3
and 4. That is, the MaxPac contains a MegaRAID card with Channel 2 controlling the
C:
internal
system drive and Channel 1 controlling a TeraPac containing three drives. In order to demonstrate
the recovery process, we first have to cause the problem situation to occur.
1) Ensure that the system is powered down, disconnect the TeraPac’s data/control cable from the
MaxPac, and then power up the MaxPac again. In the boot up sequence, you will see the
MegaRAID controller report that SCSI IDs 8, 9, and 10 ob Channel 1 are failing to respond
(Figure 5-1).
Figure 5-1
2) Unfortunately, the MegaRAID controller doesn’t cause the system to pause and warn you that a
potential problem is about to occur. Instead, it allows the system to boot up all the way into
Windows, by which time you really do have a problem. Once you are in Windows, right-click on
the
My Computer
icon on your desktop, and then select (left-click) the
Manage
item from the
ensuing pop-up menu.
3) Click the ‘+’ symbol next to the
Storage
item (if this item is in its collapsed state) in the left-
hand navigation pane, and then select the
Disk Management
item. Not surprisingly, the
system reports that it can only find the C: drive at the CD/DVD; the TeraPac simply isn’t there
(Figure 5-2).
