Hello, I have a large home directory on a spinning disk that I regularly synchronize between different computers using unison. That takes ages, even though the amount of changed files is typically small. I suspect most if the time is spend walking through the file system and checking mtimes.
So I was wondering if I could possibly speed-up this operation by storing all btrfs metadata on a fast, SSD drive. It seems that mkfs.btrfs allows me to put the metadata in raid1 or dup mode, and the file contents in single mode. However, I could not find a way to tell btrfs to use a device *only* for metadata. Is there a way to do that? Also, what is the difference between using "dup" and "raid1" for the metadata? Best, -Nikolaus -- GPG encrypted emails preferred. Key id: 0xD113FCAC3C4E599F Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F »Time flies like an arrow, fruit flies like a Banana.« -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html