How to Parse the Premium License FEI (Feature Enable Identifier) on the Sun Storage 2500, 6000 and Flexline Arrays

Asset ID:	1-71-1373211.1
Update Date:	2011-11-04
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Solution Type Technical Instruction Sure

Solution 1373211.1 : How to Parse the Premium License FEI (Feature Enable Identifier) on the Sun Storage 2500, 6000 and Flexline Arrays

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PLA-Support>Sun Systems>DISK>Arrays>SN-DK: 6130
 .Old GCS Categories>Sun Microsystems>Storage - Disk>Modular Disk - 2xxx Arrays
 .Old GCS Categories>Sun Microsystems>Storage - Disk>Modular Disk - 6xxx Arrays
 .Old GCS Categories>Sun Microsystems>Storage - Disk>Modular Disk - Flexline FLX FLA FLC Arrays

How is the FEI constructed.

In this Document
Goal
Solution

Applies to:

Sun Storage 2530-M2 Array - Version: Not Applicable and later   [Release: N/A and later ]
Sun Storage 2540-M2 Array - Version: Not Applicable and later    [Release: N/A and later]
Sun Storage 6140 Array - Version: Not Applicable and later    [Release: N/A and later]
Sun Storage 6180 Array - Version: Not Applicable and later    [Release: N/A and later]
Sun Storage 6540 Array - Version: Not Applicable and later    [Release: N/A and later]
Information in this document applies to any platform.

Goal

The intend of this document is to explain how the FEI (Feature Enable Identifier) is constructed.

Solution

The FEI is a composition of the serial numbers of the A & B controllers plus a time stamp at the initial power ON of the array. The last 5 digits of each controller are converted to ASCII and separated with a NULL pad. Here's an example:

Feature enable identifier: 3030303933203030313533204af5790d

Tray.85.Controller.A
Serial number: SQ91100093
Tray.85.Controller.B
Serial number: SQ91100153

If you take the first 5 pairs of digits: 30 30 30 39 33 that converts to 00093 by dropping the most significant digit (3). Then you have a "20" pad or separator and repeat the same for the B controller followed by a pad. That leaves 4af5790d which converts to 1257601293 seconds or / by 60 twice and / by 24 to get the number of days (14555.57) and you will get 39.85 years. Add that to Jan 1 1970 and you will see that this array was first turned on Sat Nov 07 05:41:33 2009 GMT-7. This is also useful to determine if either of the original controllers have ever been replaced.

Since the FEI is stored in DACstore (private area on all physical disks that contain array configuration metadata), after it's initial creation it typically will not change under normal circumstances. That means that controller replacement will not affect the FEI. The times when it is most likely to change is during attempts to recover the array configuration. In these extreme cases, it may be necessary to get new licenses as part of the recovery process.

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