Messages in this thread | | | From | Andreas Dilger <> | Date | Wed, 18 Sep 2002 14:32:47 -0600 | Subject | Re: PATCH: Support tera byte disk |
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On Sep 18, 2002 13:11 -0700, H. J. Lu wrote: > For a 1.8TB SCSI HD, kernel reports: > > SCSI device sda: -773086208 512-byte hdwr sectors (-395819 MB) > > Here is a patch to fix it. BTW, I don't think it will work with > 2TB, > which requires bigger changes.
There's also a limit where statfs() overflows at 16TB for 4kB block filesystems... Ask me how I noticed this ;-)
Luckily, it is easy to upshift f_blksz and downshift f_blocks, f_bfree, and f_bavail to get the data through the statfs interface, and df does the reverse on the other side. It makes sense to show a larger block size anyways, so apps potentially do larger I/O requests.
Cheers, Andreas -- Andreas Dilger http://www-mddsp.enel.ucalgary.ca/People/adilger/ http://sourceforge.net/projects/ext2resize/
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