On Sun, 18 Mar 2012 14:01:39 +0100 [email protected] wrote: > man mdconfig > ---- > -S sectorsize to use for malloc backed device > ---- > > I want to create MD device, with sector size of 4 Kb. > > It is CRITICAL to NOT append ANY suffixes, when specifing size, via > '-s' flag in order to use sectors, to set it's size. # mdconfig -a -t > malloc -S 4096 -s 32768 > > This should created dev of 128 Mb in size. > 32768 sectors * 4 Kb each = 131072 Kb = 128 Mb > Not! It created dev of 16 Mb in size, because sector size remained at > 512 bytes.
From mdconfig 8 "Size is the number of 512 byte sectors unless ..." Looks to me like it's doing what it said it would. BTW are you sure you want to use "-t malloc". This keeps the files (even the deleted ones) in memory unconditionally while ordinary process memory is paged-out. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[email protected]"
