Hi,

> ~ # parted /dev/sde print
> Model: WD My Book 1230 (scsi)
> Disk /dev/sde: 6001GB
> Sector size (logical/physical): 4096B/4096B
[...]

> AFAICS this partition works fine, fsck does not report any problem. The 
> funny thing is, it should not have been possible, because of the 2GB limit 
> of MBR.

The real limit of MBR is 2^32 sectors, which amounts to 2TB when using
512B sectors. Both your disks are using native 4kB sectors (look at the
logical sector size in the parted output), which effectively raises the
MBR limit to 16TB.

Not that this answers your question, as the Linux kernel has supported
4kB sectors for years and AFAIK it does not need any special
configuration options to do so...

andrea


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