<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">We use ext3 for maildir. I have not had any issues to date. This is also on fibre SAN drives, not ATA.<div><br><div><div>On Nov 26, 2007, at 12:22 PM, Heitor Augusto M Cardozo wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"> <div bgcolor="#ffffff" text="#000000"> <font size="-1"><font face="Verdana">Hi all,<br> <br> In last year, i had made some research and benchmarks based on CentOS 4 to know which filesystem is better for Maildir: ReiserFS, XFS or EXT3.<br> <br> My conclusion was as follows:<br> <br> - EXT3: reliable but very slow to read many small files.<br> - ReiserFS: best performance but unreliable and bad recovery tools.<br> - XFS: My choice, good performance and reliability.<br> <br> On CentOS 5.0, a had the same benchmarks and now, EXT3 and XFS seems to had better or equivalent performance on Read and Create Random files. One of this tests, using bonnie++, show this:<br> <br> # bonnie++ -d /mnt/sdc1/testfile -s 8192 -m `hostname` -n 50:150000:5000:1000<br> <br> XFS:<br> Version 1.03 ------Sequential Output------ --Sequential Input- --Random-<br> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--<br> Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP<br> localhost 8G 74048 99 201584 32 74014 12 61610 92 228977 18 623.5 0<br> ------Sequential Create------ --------Random Create--------<br> -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--<br> files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP<br> 50:158999:5125/1000 692 12 82 0 3502 28 529 7 107 0 1149 11<br> localhost,8G,74048,99,201584,32,74014,12,61610,92,228977,18,623.5,0,50:158999:5125/1000,692,12,82,0,3502,28,529,7,107,0,1149,11<br> <br> EXT3:<br> Version 1.03 ------Sequential Output------ --Sequential Input- --Random-<br> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--<br> Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP<br> localhost 8G 54569 99 249788 68 75268 11 59128 91 211926 15 587.2 0<br> ------Sequential Create------ --------Random Create--------<br> -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--<br> files:max:min /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP<br> 50:158999:5125/1000 748 15 256 1 1081 5 713 15 108 0 207 1<br> localhost,8G,54569,99,249788,68,75268,11,59128,91,211926,15,587.2,0,50:158999:5125/1000,748,15,256,1,1081,5,713,15,108,0,207,1<br> <br> <br> What i want to know is: Anyone use or recommend EXT3 for Maildir?<br> <br> My configuration: 3Ware 9650SE-8LPML, 8 drives SATA2 ST3500630AS 500GB on RAID 10.<br> <br> Regards,<br> <br> Heitor A.M. Cardozo</font></font> </div> _______________________________________________<br>CentOS mailing list<br><a href="mailto:CentOS@centos.org">CentOS@centos.org</a><br>http://lists.centos.org/mailman/listinfo/centos<br></blockquote></div><br></div></body></html>