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If a new path is available we need to verify the path data. If it is the first path for a device the stop bits are removed after path verification. If a pathgroup is established we need to set system characteristics for the lcu. Therefore I/O has to be started. If the device is stopped the set system characteristics worker may block the path verification worker and the device is blocked. Turn on failfast for set system characteristics CQR to prevent a deadlock with the path verification worker. If a pathgroup is established on a device that is not in use trigger path verification. Maybe we were not informed about a working path. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Reviewed-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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