Re: mode data=journal in ext3. Is it safe to use?

From: Petter Larsen
Date: Sat Jun 19 2004 - 09:52:21 EST


> >
> > We are using ext3 on a compact flash disk in an embedded device. So we
> > are not using RAID systems.
>

> Um, is this a new application or have you done this before?
>
> It's my understanding that very few (or no) CF devices do wear-levelling internally.
> Using a journal, especially a true data journal, seems like *the* way to wear out your
> flash as quickly as possible.
>
> If you've had success using ext2 in read/write mode on flash/CF in a shipping product,
> I for one would like to know more details!
>
> ken

>From our data sheet:

Wear Leveling is an intrinsic part of the operation of
SanDisk products using NAND memory.

But for sure, we will use a Compact flash that DO wear leveling, and
also shuffling read-only data around the Compact Flash disk.

This will be for production, yes.

Petter
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