> > 
> > I've been doing 120GB+ filesystems for FreeBSD for quite some time. The
> > real fun will be the 1TB filesystems.
>  
>  How much Swap disk space have you allocated on machines that you fsck'ed
>  that were this large ?

Well, here's a current FreeBSD machine that has a couple 60GB raid boxes
ccd'd together:

Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
/dev/ccd0c  122255964        4 112475484     0%    /mnt
ds3.nas.nasa.gov > lmdd of=file bs=32k
^C600.25 MB in 27.46 seconds (21.8584 MB/sec)
ds3.nas.nasa.gov > swapinfo
Device      1024-blocks     Used    Avail Capacity  Type
/dev/wd0s1b     1023872        0  1023872     0%    Interleaved

Here's a NetBSD machine with a 155GB array:

brunner > df -k .
Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
/dev/sd7a   158057244        4 150154376     0%    /mnt
brunner > swapctl -l 
Device      1024-blocks     Used    Avail Capacity  Priority
/dev/sd0b       1099340        8  1099332     0%    0
brunner > lmdd of=file bs=32k
^C623.22 MB in 24.52 seconds (25.4209 MB/sec)


Yes, substantial swap. I've probably fsck'd with smaller swap.



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