On Thu, Nov 03, 2011 at 12:29:58PM -0400, Krzysztof Adamski wrote: > Hi All, > > I'm about to create a XFS file system on a MD RAID6 made up of 12 3T > drives. > > This is the command line that I was planning to use: > > # mkfs.xfs > -l lazy-count=1 This is the default in any semi-recent xfsprogs version. > -s size=4096 using a sector size larger than the actual disk sector size might risk data loss, as the log code expects sector sized writes to be atomic. If you have a real 4k logical sector disk it should be picked up automatically with the kernel topology support. We don't quite do the right thing for 512 byte logical / 4k physical disks, in which case you might need this line. > -N That won't actually create you a filesystem :) > = sunit=128 swidth=1280 blks In general you're better off with a 32k stripe unit / chunk size, than the extremly large default of 512k. > Should I change any default parameters to mkfs.xfs Usually not. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
