[cgl_discussion] ATCA Requirements Take 2

Steven Dake sdake at mvista.com
Tue Sep 9 14:54:58 PDT 2003


Here is take 2 of the requirements for ATCA.

Requirement: ATCA IPMI Support

The IPMI system shall implement the new IPMI commands, data structures,
and sensors defined in the ATCA specification.

Requirement: Block Device Removal

The Linux kernel should allow removal of a block device while it is in
use without degrading reliability of the system.  The block device shall
be removeable even if in use by an open file (fdisk /dev/sda), a raid
volume, or a filesystem or multiples thereof.

Requirement: shutdown systemcall integrated with ATCA system management 

The Linux kernel shall ensure that the  shutdown system call uses the
ATCA system management IPMI interface to power down the system and light
the blue led.

Requirement: Multiple Host Syncronized Device Hotswap

When multiple hosts are using the same block or character device, and a
user requests to remove the device, the device's blade wont be powered
off and if a blue led is available, lit, until all systems in the
collection of machines using the device have removed the device from
their respective Linux kernel data structures.

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