Andriy Gapon wrote: > Recently I tried to hot-attach a SATA drive to a running system. > Controller is ICH9 in AHCI mode. Physically/electronically everything went > smoothly, the drive spun-up. Then I tried to detach and re-attach all channels > with no devices on them using atacontrol. I did it 3 times to be sure, but no > new > disk showed up. Then I finally rebooted, the disk showed up OK. > > Question: was hot-attach expected to work? Is there a limitation in hardware > or in > our driver? > > Note: I attached the drive to a regular SATA port, not eSATA.
Which system version do you use? With recent CURRENT I have successfully tested insert/remove SATA drives with ICH8, ICH8M and JMB363 AHCI controllers channel attach/detach. Theoretically it is possible to insert/remove SATA drives even without channel attach/detach. Remove works fine, but such really hot insertion functionality is not implemented properly now and so blocked. -- Alexander Motin _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
