tag:blogger.com,1999:blog-9099779.post3299397949193167836..comments2024-03-23T23:09:17.426+01:00Comments on StalkR's Blog: SATA2 and linux software RAID performanceStalkRhttp://www.blogger.com/profile/15113480981262771031noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-9099779.post-8956187019849045832009-12-03T12:00:49.614+01:002009-12-03T12:00:49.614+01:00I reshaped my 8 disks RAID-5 array + 1 hot spare i...I reshaped my 8 disks RAID-5 array + 1 hot spare into a 9 disks RAID-6 in order to have better redundancy (with 9 disks, it becomes dangerous).<br /><br />I observed that RAID-6 performances are lower than RAID-5, but still twice performant as disks alone.<br /><br />/dev/md6:<br /> Timing cached reads: 5256 MB in 2.00 seconds = 2628.75 MB/sec<br /> Timing buffered disk reads: 564 MB in 3.00 seconds = 187.92 MB/secStalkRhttps://www.blogger.com/profile/15113480981262771031noreply@blogger.com