Improving ext4: bigalloc, inline data, and metadata checksums
Posted Nov 30, 2011 0:32 UTC (Wed) by pr1268
In reply to: Improving ext4: bigalloc, inline data, and metadata checksums
Parent article: Improving ext4: bigalloc, inline data, and metadata checksums
Thanks for the pointer, and thanks also to yoe's reply above. But, my music collection (currently over 10,000 files) has existed for almost four years, ever since I converted the entire collection from MP3 to OGG (via a homemade script which took about a week to run).1 (I've never converted from FLAC to OGG, although I do have a couple of FLAC files.) I never noticed any corruption in the OGG files until a few months ago, shortly after I did a clean OS re-install (Slackware 13.37) on bare disks (including copying the music files)2. I'm all too eager to blame the corruption on ext4 and/or LVM, since those were the only two things that changed immediately prior to the corruption, but you both bring up a good point that maybe I should dig a little deeper into finding the root cause before I jump to conclusions.
1 I've had this collection of (legitimately acquired) songs for years prior, even having it on NTFS back in my Win2000/XP days. I abandoned Windows (including NTFS) in August 2004, and my music collection was entirely MP3 format (at 320 kbit) since I got my first 200GB hard disk. After seeing the benefits of the OGG Vorbis format, I decided to switch.
2 I have four physical disks (volumes) in which I've set up PV set spanning across all disks for fast I/O performance. I'm not totally impressed at the performance—it is somewhat faster—but that's a whole other discussion.
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