-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, It would be a great feature to have speed profiles linked to devices so that btrfs could differentiate write or read operations according to some metrics collected over time. The use case would be : one has 3 disks as RAID1 but one of the disks is older and slower than the two other disks. In this configuration the third disk serves a bit as an online backup but it would be nice for a write to be considered as done when the two fast disks have completed the write, the third one acting asynchronously. If one of the two fast disks fails we fall back to syncronous writing on that third device. This would be great for mixing SSD and traditional drives too. Issue submitted on https://bugzilla.kernel.org/show_bug.cgi?id=68671 Thanks. Arthur -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJS1GdZAAoJELB9duUjqo16KxIQALNLqogzuJyaNDHuyHezJvrf fSHC3vjyEsGjTc8H/lC+VqbetzEep0w7do1yF0blZVrAbqJVArY1kCOXkb7dUHuA BzWHVIgGD3JBvYnU4tEJML35zPBXsHtV+ouCp+h7P30RASDDRdtDnRo7CtP7nEJO T75ZyUfHyZmUnEMWTkrdoFJT1xI+6TeMS+5ACHLe8bz7+rgUXyyjDUBdmTNJ87+8 /ya7Mjc8ICHhAkmzFtXUwMcoIwjBo872pgffQxNGLxvX6/f9cVpo1foc+TPuMkat 1rRjtksNx36n7yX4DeNH3c2qvg9wB2BFFlCGcD+bL5xr87ql9l/UlyVxvFMCtCrK UVXXDU56V51kk75wJu4QssxKcQ80I7zj2/aHVDEr/+OnAkRWTYs/2KKGv+1kih3u qNaz0fm5aWF6MHlFhtOHCVMEy68evpzGddMPgMDM+pmxrfzdbhPdSL5UAX5WXuHQ YKo2qzYsew19/nE6OomWCR+0m+FoVokbERNqcsPfSANcghyQ+QWWytPGOlxPFdB9 uL8vZ+GoErMH78Q0b6ZNlona+cIH0bWmmh54RCWw24KyagXU9KPx33zOd/TnI847 2LNhXStkMKWNMEhErblwSK3RqOr8jUJ111HviQCQO5B/TfaAHoV+0VNhaLIhR25Y oLKcrGti8FiKhDiVySN1 =AJ4Y -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
