Greg Freemyer wrote:
On Tue, Jun 30, 2009 at 1:01 PM, Bill Davidsen<davidsen@xxxxxxx> wrote:
Leslie Rhorer wrote:
<snip>
I may have to rethink my position on using raw drives. If I
partition the drives, I can make the partition a bit smaller than the
whole
drive, allowing for the addition of a future drive whose size is a bit
off.
I hate to waste space, but being stuck with an undersized or limping array
is worse.
Some manufacturers use the HPA (host protected area) to reduce the size
available to the user. You will see reference to this in the dmesg output.
There is a tool to let you see/set HPA, but I can't put my hand on the info
right now, the one I have is out of date, so I won't mention it.
Any recent version of hdparm can get/set HPA for LBA-48 drives. That
feature went in a couple years ago. And it is the only tool I know
that works with LBA-48 drives. (ie. drives larger than 128 GiB).
If your version is too old you can get a new version off of
sourceforge I believe.
I was actually thinking of a GUI tool, used for partition management,
but I can't recall the name (I do most things like that from the cli).
There's also SleuthKit, which may handle larger drives, 1TB limit comes
to mind, but I was using it for something else rather than HPA.
In any case, some drives seem to use that for sizing, just wanted to
note that to the O.P.
--
Bill Davidsen <davidsen@xxxxxxx>
Obscure bug of 2004: BASH BUFFER OVERFLOW - if bash is being run by a
normal user and is setuid root, with the "vi" line edit mode selected,
and the character set is "big5," an off-by-one error occurs during
wildcard (glob) expansion.
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