Stan Hoeppner: > Jochen Schulz put forth on 1/11/2011 3:19 AM: > >> And those pesky 4k blocks will never take hold. 512 bytes were a good >> idea in the 1950s, so what's wrong with it now!? > > 4KB blocks are great. Too bad these drives report 512B blocks to the kernel, > which is what causes the problem. "Advanced format" = hybrid, not native. My WD10EARS (not the 2TB variant that this thread was about) looks correct: # hdparm -I /dev/sdc | grep "Sector size" Logical Sector size: 512 bytes Physical Sector size: 4096 bytes # hdparm -I /dev/sdc | grep Model Model Number: WDC WD10EARS-22Y5B1 > When we have _native_ 4KB sectors things will be much better, at least for > larger file types. For mail servers native 4KB sectors will waste a lot of > platter space... Don't we already waste that space with our filesystems? Ext2 cannot use blocks smaller than 1024 Bytes, as far as I can see. And by default even 4kB are used for small filesystems (<5GB on my /). J. -- It is not in my power to change anything. [Agree] [Disagree] <http://www.slowlydownward.com/NODATA/data_enter2.html>
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