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Big change is new hot-replacement. A slot in an array can hold 2 devices - one that wants-replacement and one that is the replacement. Once the replacement is built - either from the original or (in the case of errors) from elsewhere, the wants-replacement device will be removed. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQIVAwUATwUdyDnsnt1WYoG5AQJBExAAuFQrzt7CN32nmiqaLlJ1snBC/ixOSJf7 0X88YB+utO0qNIhiRTI1AulslRGms9pChyKmZZaxU2Hvzk1pTrFspsc8RlJTIv9S Si43due99Np08/Kf5rjYulyH0fcug0qIqlrCiBvc36pOIHZzam6IzrEvKFf0dqbe 4vtLWuylEUiSEbN5gBordfTFZcxSPI/huMUgx6hEpdA4NtaPmN57/03d49k4RYgp f5l9htuIqdMgHwNJRUDGMooifuvILC5HXINUbsCFT6KUF/bxA75nW7W3C2BUq0V/ CVb/ZoHFYtuaGBEcMUzN34k0DbHghPeSmlvXT4XWq7+gVNqGe33nbSJsx1oLXWr1 m/b3j4Ublv+VVd7L1Rr40vTRB6wN5/2uN7SiD6d83ppPD0TuAY8YvMHgoLZQmQvh Ak4fEz07re+tueKhHwbi+1qMIw/ciQ9O/tI7r+AsVklkAxJNAfFKW6FOEFL2cjEW h4rbg1z9sU+xD8G01LBnJ0to/ajrJ4ch4wV/raLgi4+dJ4Tt3+/tas6WJlxHbyFF IiHCFM0+KcxLcwNkalZYg/zr5qu7EcwpPKLnc68m+LjXlYVWcnNHwv5WnOCHHQTw 6yurGGlKqBfvsb8zJJGSRWqEtRSYjDlZiMt10/u+H40HiCiLX//vSvVbZoFiwWu1 VzgEhzhvaYw= =j00/ -----END PGP SIGNATURE----- Merge tag 'md-3.3' of git://neil.brown.name/md md update for 3.3 Big change is new hot-replacement. A slot in an array can hold 2 devices - one that wants-replacement and one that is the replacement. Once the replacement is built - either from the original or (in the case of errors) from elsewhere, the wants-replacement device will be removed. * tag 'md-3.3' of git://neil.brown.name/md: (36 commits) md/raid1: Mark device want_replacement when we see a write error. md/raid1: If there is a spare and a want_replacement device, start replacement. md/raid1: recognise replacements when assembling arrays. md/raid1: handle activation of replacement device when recovery completes. md/raid1: Allow a failed replacement device to be removed. md/raid1: Allocate spare to store replacement devices and their bios. md/raid1: Replace use of mddev->raid_disks with conf->raid_disks. md/raid10: If there is a spare and a want_replacement device, start replacement. md/raid10: recognise replacements when assembling array. md/raid10: Allow replacement device to be replace old drive. md/raid10: handle recovery of replacement devices. md/raid10: Handle replacement devices during resync. md/raid10: writes should get directed to replacement as well as original. md/raid10: allow removal of failed replacement devices. md/raid10: preferentially read from replacement device if possible. md/raid10: change read_balance to return an rdev md/raid10: prepare data structures for handling replacement. md/raid5: Mark device want_replacement when we see a write error. md/raid5: If there is a spare and a want_replacement device, start replacement. md/raid5: recognise replacements when assembling array. ... |
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