Quantum StorNext QD7000, Руководство по оборудованию

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3. Power on the new drive shelf/tray, and confirm that no amber attention LEDs are illuminated on
the drive shelf. If possible, resolve any fault conditions before you continue with this procedure.
Connecting the drive shelf (drive tray)
Perform the following steps to connect a newly added drive shelf (drive tray) using SANtricity
System Manager while power is still applied to the other components of a storage array.
About this task
Note:
The following procedure applies to both drive shelves and drive trays.
You can add a new drive shelf while power is still applied to the other components of the storage
array so that access to data is not interrupted. Refer to the examples of drive cabling topology earlier
in this chapter that apply to the hardware of your storage array. If your storage array did not
previously have a drive shelf, you will cable the new drive shelf as shown for the examples of a
storage array with one drive shelf. If your storage array already has one or more drive shelves, this
procedure describes how to change the cabling of the drive shelf that was previously the last in the
stack to connect to the new drive shelf as the last in the stack. (You can add the new drive shelf
between the first drive shelf in an existing stack and the controller shelf. In that case you must modify
this procedure accordingly.)
Note: If your storage array has a mix of SAS-3 drive shelves and SAS-2 drive trays, you should
use a two-stack configuration with all of the SAS-3 shelves in one stack and all of the SAS-2 drive
trays in the other. Be sure to add the new drive shelf or drive tray to the appropriate stack.
Note:
If you are adding the new drive shelf to a storage array with one controller (simplex
configuration), modify the steps in this procedure as necessary to cable only one controller A drive
channel. Connections between one controller and two IOMs/ESMs are not supported in a simplex
configuration.
Connect the cables in the order given in the following steps.
Steps
1. Choose one of the following options:
• If the new drive shelf or drive tray is the only drive shelf in the storage array, attach a cable
between one of the SAS expansion ports on controller A of the controller shelf and a SAS
expansion port 1 on IOM/ESM A of the new drive shelf.
• If the storage array already has one or more drive shelves or drive trays in a single-stack
configuration and the new drive shelf or drive tray has the same type of SAS interface (SAS-2
or SAS-3) as the existing shelves or trays, connect a cable between the SAS expansion port on
IOM/ESM A of the drive shelf or drive tray that was previously the last in the stack and SAS
expansion port 1 on IOM/ESM A of the new drive shelf or drive tray.
• If the storage array already has two or more drive shelves or drive trays in a dual-stack
configuration, connect the new drive shelf or drive tray to the stack of trays or shelves whose
SAS interface (SAS-2 or SAS-3) matches that of the new drive tray or drive shelf. Connect a
cable between the SAS expansion port on IOM/ESM A of the drive shelf or drive tray that was
previously the last in the stack and SAS expansion port 1 on IOM/ESM A of the new drive
shelf or drive tray.
• If the storage array already has one or more drive shelves or drive trays in a single-stack
configuration and the new drive shelf or drive tray has a different type of SAS interface
(SAS-2 or SAS-3) than the existing shelves or trays, you must re-cable the storage array to a
dual-stack configuration. Locate the cable between SAS expansion port 2 on controller A and
IOM/ESM A in the first drive tray or drive shelf in the existing stack. Disconnect that cable
from IOM/ESM A of the tray or shelf in the existing stack and then reconnect it to IOM/ESM
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