On Mon, 28 Oct 2002, Vlad Milovanovic wrote: > ext3 will not slow things down noticeably. I also don't know what type > of disks and how many disks you are using, but 15 MB/s seems very > slow. You have also not specified what RAID level you are using, so it > is difficult to say what your performance should be (ballpark figure). The 15 meg/s is with a 5 120 gig raid0. I get approx the same with a 6 or 8 disk RAID5 with a 3ware 7500 controller. This is all with hardware raid enabled. I recreated the RAID5 with 8 disks today and used the stride=16 option and that didnt seem to change anything when it comes to performance. > But to answer your question, I have found stride option to make a huge > impact in RAID 5 setups. Also, depending on what kind of system you > are running, you may want to look into using the -T largefile (or some > other) option, to let the filesystem reduce (or increase) the number > of inodes that you have created. You should pay attention to the way I used the 100000 bytes/inode when I created the system, sounded like a nice number. -- Mikael Abrahamsson email: swmike@swm.pp.se - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
