On 2014-05-28, m.roth at 5-cent.us <m.roth at 5-cent.us> wrote: > > At the moment, files that are tens of gigs, but I would not be at *all* > surprised to see another decimal point there in the next year or two. HBR > - a Jetstor 742 with 42 4TB drives.... I'm assuming they'll want me to do > RAID 6 for this, as we've been doing on other RAIDs. That's significantly bigger than what I have running, but I have heard of people running XFS on larger filesystems than I have. If you're making one large filesystem out of that, the warning James mentioned is even more important: you will want a boatload of memory to xfs_repair that fs quickly. The rough rule of thumb I've read (which is probably akin to the 2x RAM==swap guideline) is at least 1GB of memory for every 1TB of storage, but the more the better, I'd wager. --keith -- kkeller at wombat.san-francisco.ca.us