29 lines
1.2 KiB
Plaintext
29 lines
1.2 KiB
Plaintext
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README.txt
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~~~~~~~~~~
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Chassis_id is a callout program which is used to give geographic names to devices. It uses
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another callout program scsi_id to determine the serial number of a device and then looks up
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the provisioning table based on this key. It retrieves geographic information
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( chassis#, slot# and host# ) about the device and prints it to stdout. These fields are
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used by udev to create the device entry.
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Using Udev:
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~~~~~~~~~~
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Chassis_id gets invoked by udev using the udev as below:
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BUS="scsi", PROGRAM="/usr/local/bin/chassis_id", NAME="/chassis%c{1}/slot%c{2}/host%c{3}/disk-%c{4}
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The provisioning table ( file provision.tbl ) has to be put in /usr/local/bin and as of now has
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to be populated manually. This is the only place where the geographic map of devices is kept
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in the system.
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Usage Model:
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~~~~~~~~~~~~
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On ATCA based blade architecture systems, blade insertion/removal is common. We create names
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in a 3 level deep tree which represent the geographic map of the devices.
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CONTACT:
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~~~~~~~~
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Please feel free to contact atul.sabharwal@intel.com with questions, comments, suggestions.
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