local file=$DIR/$tfile
local nr=$((OSTCOUNT * 100))
- $LFS setstripe -C $nr $file || error "failed to setstripe -C $nr $file"
+ $LFS setstripe -C $nr -S1M $file ||
+ error "failed to setstripe -C $nr $file"
stack_trap "rm -f $file"
dd if=/dev/zero of=$file count=$nr bs=1M