Verifying Shelf Installation - Dell EMC Data Domain DS60 Hardware Manual

Verifying shelf installation

7. Restart the Data Domain system. As the system boots up, the HOST/
EXPANSION LEDs on the shelf controller ports that are connected to the SAS
I/O module in the Data Domain system change from off to blue or green.
If any of these LEDs stays off or is not running at normal speed, it means there
is a problem in the connection between the system and the shelf. See the
section DS60 expansion shelf
replace the cable and check the LEDs again. If the connection still has a
problem, replace the controller module or the SAS I/O module.
The Data Domain system recognizes all data storage (system and attached shelves) as
part of a single file system volume.
WARNING
Do not remove or disconnect a shelf that has been added earlier. If a shelf is
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disconnected, the file system volume is immediately disabled and all data in
the volume is lost.
To re-enable a shelf, reconnect the shelf or transfer the disks from the shelf
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to another empty shelf chassis and connect.
If the data on a shelf is not available to the file system volume, the volume
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cannot be recovered.
Unless the same disks are available to the file system, the DD OS must be re-
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installed as directed by your contracted service provider or Online Support
site, http://support.emc.com.
Procedure
1. After installing the new shelves, check the status of the SAS I/O module by
entering the disk port show summary command:
# disk port show summary
Port Connection
Type
---- ----------
5a SAS
5b SAS
5c SAS
5d SAS
6a SAS
6b SAS
6c SAS
6d SAS
7a SAS
7b SAS
7c SAS
7d SAS
8a SAS
8b SAS
8c SAS
8d SAS
The output shows:
The offline status for each SAS connection, such as 5a, 5b, 5c, and so
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on.
on page 11 for more information. Reseat or
Link Connected
Speed Enclosure IDs
------- -------------
24 Gbps 5
24 Gbps 6
24 Gbps 4
24 Gbps 2, 3
24 Gbps 5
24 Gbps 6
24 Gbps 4
24 Gbps 2, 3
Verifying shelf installation
Post-Installation Tasks
Status
-------
offline
offline
offline
offline
offline
offline
offline
offline
online
online
online
online
online
online
online
online
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