<DIV>Oh I see.. Thanks.. </DIV> <DIV>So HDD's RPM and on-drive buffer would matter a lot on large RAIDs then? is there a way to tune the file system to minimise this impact ?</DIV> <DIV>Again, Thanks in advance!</DIV> <DIV>MK "Charles P. Wright" <cpwright@cpwright.com> wrote:</DIV> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">This can easily be explained by seek time. If you have a 3GB partition on a 300GB disk, you are only using 1% of the surface of your disk. During the test on a smaller partition, head doesn't have to move as far as it does with the larger partition. Charles On Wed, 2004-05-12 at 22:09, M K wrote: > Has anyone experienced a significant degradation in ext3 performance > when using it on a Multi-TeraByte RAID? As part of an experimental > setup, I hooked up three 300GB drives and made an EXT3 RAID5 out of > them, using the entire space one each drive, and started throwing a > large number of files in the size-range 3KB to 50 KB. Then, I deleted > the raid, and created a new one, but this time, I used only 3 Gigs > from each drive (a very small RAID compared to the earlier one). After > repeating the same ! test, a huge improvement in performance was see - > hence, the question : does ext3 performance degrade significantly as > the file system size increases? > > Thanks in Advance, > MK > > > ______________________________________________________________________ > Do you Yahoo!? > Yahoo! Movies - Buy advance tickets for 'Shrek 2' > > ______________________________________________________________________ > _______________________________________________ > Ext3-users mailing list > Ext3-users@redhat.com > https://www.redhat.com/mailman/listinfo/ext3-users </BLOCKQUOTE> <hr size=1>Do you Yahoo!? Yahoo! Movies - <a href="http://movies.yahoo.com/showtimes/movie?mid=1808405861">Buy advance tickets for 'Shrek 2' </a>