Linux on System z Current & Future Technology - z/VM - IBM
Linux on System z Current & Future Technology - z/VM - IBM
Linux on System z Current & Future Technology - z/VM - IBM
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<strong>IBM</strong> <str<strong>on</strong>g>Linux</str<strong>on</strong>g> and <strong>Technology</strong> Center<strong>System</strong> z kernel features – FICON• Unit check handling (kernel 2.6.35)– Improve handling of unit checks for internal I/O started by the comm<strong>on</strong>-I/O layer– After a unit check certain setup steps need to be repeated, e.g. for PAV• Dynamic PAV tolerati<strong>on</strong> (kernel 2.6.35)– Tolerate dynamic Parallel Access Volume changes for base PAV– <strong>System</strong> management tools can reassign PAV alias device to different base devices• Tunable default grace period for missing interrupts inDASD (kernel 2.6.36)– Provide a user interface to specify the timeout for missing interrupts for standard I/Ooperati<strong>on</strong>s <strong>on</strong> DASD• Query DASD reservati<strong>on</strong> status (kernel 2.6.37)– New DASD ioctl to read the 'Sense Path Group ID' data6.1 11.26.1 11.26.1 11.2– Allows to determine the reservati<strong>on</strong> status of a DASD in relati<strong>on</strong> to the current system11.217© 2012 <strong>IBM</strong> Corporati<strong>on</strong>
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