linux-ext4 - Re: Ext4 on SSD Intel X25-M

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Date:	Thu, 12 Nov 2009 09:11:52 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	"Renato S. Yamane" <yamane@...mondcut.com.br>
CC:	linux-ext4@...r.kernel.org
Subject: Re: Ext4 on SSD Intel X25-M

Renato S. Yamane wrote:
> Hi,
> 
> [please, leave me on cc because I'm not subscribed on this ML]
> 
> I'm using Intel SSD X25-M on my laptop, and I always hear that is not a 
> good idea use journal on SSD (it decrease the life time).
> 
> I ask Intel about this, but I don't receive any answer.
> 
> So, I would like to know if is possible disable Journal on EXT4.

It is possible, mkfs with "-O ^has_journal" but then of course you ... 
have no journaling.

However, Intel has always said, I think, that you should treat their 
SSDs just like you would treat any other hard drive, so I probably would 
not hesitate to leave the journal intact.

There is a write lifetime of course, but I think it's much better than 
if you were writing to, say, a securedigital card.

-Eric

> I'm using Debian Testing (squeeze).
> 
> Regards,
> Renato S. Yamane
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