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2. Save the storage server profile to a disk location that is not in the FAStT
storage server that you are upgrading. In the Subsystem Management window,
select View-->Storage Subsystem Profile. When the Storage Subsystem
Profile window opens, click Save As. The Save Profile window opens. Select
an appropriate directory and choose a file name for the profile, then click
Save.
Click Close to close the Storage Subsystem Profile window.
3. Use the Storage Manager client to flush and disable the read/write cache on
both controllers, using the following steps. Either check that the cache LED on
the back of the controller is off or wait two to three minutes.
a. In the Logical/Physical View of the Subsystem Management window,
right-click any of the logical drive tree nodes and select Change-->Cache
Settings. A Change Cache Settings window opens.
b. Click Select All to select all logical drives, and clear all of the Cache
Setting Enable check boxes, then click OK. Click OK when the
Confirmation window opens.
Note: A progress window shows the modification progress. After the cache
setting modification complete, click OK to close the progress
window and return to the Subsystem Management window.
Refer to the Storage Manager client online Help panels for more details on
disabling cache.
4. Place the controller in an offline state, using the following steps:
a. In the Logical/Physical View of the Subsystem Management window,
right-click the controller icon and select Place-->Offline. Click Yes when
the Controller Offline Confirmation window opens.
Verify that the controller amber fault LED is lit. In the Storage Manager client,
the controller will be displayed with a red "X" icon.
5. Label each cable that connects to the RAID controllers. This ensures that all
cables will be properly reconnected to the new RAID controllers.
Attention:
Handle and install fiber-optic cables properly to avoid degraded
performance or loss of communications with devices. When working with
fiber-optic cables, do not pinch them, step on them, or locate them in aisles or
walkways. Do not overtighten the cable straps or bend the cables to a radius
smaller than 38 mm (1.5 in.).
6. From the first RAID controller to be upgraded, remove the fibre-channel cables
from the SFPs. The location of these components is shown in Figure 49 on
page 64.
Chapter 5. Installing and replacing components
63
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