Why the S2300 Controller Enclosure Fails to Detect 1 TB SATA Disks?

Publication Date:  2012-07-22 Views:  276 Downloads:  0
Issue Description
A general agent ordered an S2300 in Aug. 2008 for test. The controller software version was 1.02.01.201.T06, and the storage system version was V100R001C02B030. However, when the S2300 was installed on site and configured with sixteen 1 TB SATA disks, the relevant slots are displayed as vacant on the management interface.
Alarm Information
None
Handling Process
Step 1  The controller software version is 1.02.01.201.T06, which does not support 1 TB SATA disks.
Step 2  To enable the storage system to support 1 TB hard disks, its controller software and SES firmware are upgraded to the latest version; however, the 1 TB hard disks still fail to be detected.
The chip label of the disk conversion board is Emulex, which is specific for the S5000. Therefore, the hard disks are replaced with those suitable for the S2000.
Root Cause
The S2300 supports 1 TB hard disks only after the version V100R001C02B038. The failure in this example is caused by the early version of the system software. Furthermore, the hard disks used in the S2000 and those in the S5000 have different conversion boards: The chips of SATA disk conversion boards for the V1000 and S2000 are labeled with PMC, while those for the S5000 are of a larger size and labeled with Emulex. In this example, the 1 TB hard disks still fail to be detected even after the controller software is upgraded, and the cause is that their conversion boards are for the S5000 not the S2000.
Suggestions
Hard disks are of high refresh rate; therefore, the storage systems of early versions may not support the hard disks of the latest versions. When the similar problems occur, engineers can locate them from two aspects: controller software version and disk conversion board.

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