SSD partitioning

coviex · n00b Joined: 27 Sep 2010 Posts: 33

Hi,

Today after update, which I do everyday, my root ext3 partition on HDD became read-only.
And now root becomes read-only randomly during work and fsck starts after every reboot.
I don't know whether its HDD or something in the update that causes problem but I decided to switch to OCZ Vertex SSD.

Using this article as a guide - http://wiki.gentoo.org/wiki/SSD.
As I understand it itself uses another article as a guide - http://blog.nuclex-games.com/2009/12/aligning-an-ssd-on-linux/
I'm trying to do

eccerr0r · Posted: Thu Apr 18, 2013 3:41 pm Post subject:

If you have a recent enough fdisk, it should work with LBA as-is, don't bother with specifying cylinders and heads, you don't need to!

However, you can use the fdisk option -c=dos to force it to use the C/H/S mechanism...

Anyway if you use LBA, fdisk makes it fairly simple to use MByte boundaries. It actually defaults to starting the first partition at sector 2048... what's special about 2048? 512 bytes * 2048 sectors = ... tada 1MB. Then use the +1MB, +1GB, etc. to generate partitions perfectly aligned at 1MB boundaries which pretty much encompasses most erase blocks on SSDs.

This of course screws up hard drives that C/H/S should be used on for speed as if you had to stride a cylinder boundary you'd lose performance... but hard drives like this haven't been around for decades... internal mapping have differed from C/H/S for at least 20 years now...
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Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching?