On Thu, Apr 21, 2011 at 10:50:28AM -0400, Iordan Iordanov wrote:
Hi Luca,
On 04/21/11 02:15, Luca Berra wrote:
If someone here still believes that drives from different vendors with
the same nominal size have different real size please read:
http://www.idema.org/wp-content/plugins/download-monitor/download.php?id=1192
I don't think my point is invalid. If you wanted to mix SSDs and spindle
HDDs (for, say, write-mostly "backup" of the SSDs), quite likely your
drives will be of different sizes, as the SSDs frequently come in sizes
that are power of two's unlike the spindle drives. You could start of with
just one type of drive, and only then come up with the idea of mixing
types, etc. Probably not the best example, but one nonetheless.
no, not the best example :D
There are other benefits to using a partition instead of the whole device.
there are both benefits and disadvantages, both lists are long enough
without adding non-issues.
For example, you could use a GPT label, which allows you to label
individual partitions. In an earlier post, I sent out a gpt_id script and
UDEV rules which insert /dev/disk/by-label/ links for you to GPT-labeled
partitions. We use it at the CS department of U of Toronto to keep track of
the physical location of disks (within iscsi target hosts).
So, if i understood correctly, you use partitions on something which is
not a real HDD, hope you got the data alignment part correct.
L.
--
Luca Berra -- bluca@xxxxxxxxxx
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