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Message-id: <20081222234456.GW5000@webber.adilger.int> Date: Mon, 22 Dec 2008 16:44:56 -0700 From: Andreas Dilger <adilger@....com> To: Diego Calleja <diegocg@...il.com> Cc: linux-ext4@...r.kernel.org Subject: Re: Ext4 documentation On Dec 22, 2008 23:58 +0100, Diego Calleja wrote: > Due to the astounding lack of good end-user documentation about Ext4, I've > taken the freedom of writing an article about it for the kernelnewbies > 2.6.28 changelog: http://kernelnewbies.org/Ext4 > > If you find any error or you have some suggestion, just tell me and I'll > fix it. Looks pretty good, thanks for writing this up. Minor notes: - While > 16TB is supported by ext4 disk formats, the mke2fs/e2fsck code to support this is not in any released e2fsprogs yet - I don't think the journal async commit blocks are enabled by default, so the "20% speedup" is not available yet. There is some work that needs to be done to make this feature 100% safe in case of corruption. - I'm not sure if enabling flex_bg on an existing ext3 filesystem is useful - you don't mention anything about the required e2fsprogs version. I _think_ (someone should confirm) that e2fsprogs-1.41.3 is the minimum version that anyone should use. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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