Hi Martin, On 03/10/2013 12:23 PM, Martin Steigerwald wrote: > Hi Hugo, > > Am Samstag, 9. März 2013 schrieb Hugo Mills: >> Some time ago, and occasionally since, we've discussed altering the >> "RAID-n" terminology to change it to an "nCmSpP" format, where n is the >> number of copies, m is the number of (data) devices in a stripe per copy, >> and p is the number of parity devices in a stripe. >> >> The current kernel implementation uses as many devices as it can in >> the striped modes (RAID-0, -10, -5, -6), and in this implementation, >> that is written as "mS" (with a literal "m"). The mS and pP sections are >> omitted if the value is 1S or 0P. >> >> The magic look-up table for old-style / new-style is: >> >> single 1C (or omitted, in btrfs fi df output) >> RAID-0 1CmS >> RAID-1 2C >> DUP 2CD > > What does the "D" in "2CD" mean? Its not explained above, unless I miss > something.
This means DUP (two copy on the same disk); I understand that only reading the code. > > -- gpg @keyserver.linux.it: Goffredo Baroncelli (kreijackATinwind.it> Key fingerprint BBF5 1610 0B64 DAC6 5F7D 17B2 0EDA 9B37 8B82 E0B5 -- 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
