i use a raid10 far in revodrive cards, but i'm using kernel 3.10.7 with slackware and it runs fine 2013/8/29 Albert Pauw <albert.pauw@xxxxxxxxx>: > Hi guys, > > I am trying to get a RAID 10 configuration working at work, but seem > to hit a performance wall after 20 minutes into a DB creation session. > > Here's the setup: > > OS: Oracle Linux 5.9 (effectively RHEL 5.9), kernel 2.6.32-400.29.2.el5uek. > All utilities updates, mdadm (2.6.9 latest through updates). > > Setup: > > Two Fusion IO Duo cards, each Fusion IO device 640 GB, so four in total. > > Raid 10 set up as: > > striped between the two IO devices on the same Fusion IO card, and > mirrored between the separate cards. > > So, Fusion IO card 1, device fioa and fiob, Fusion IO card 2, device > fioc and fiod. > > The two stripes are fioa/fiob and fioc/fiod, and a mirror between these devices: > > mdadm --create --verbose /dev/md0 --level=10 --metadata=1.2 > --chunk=512 --raid-devices=4 /dev/fioa /dev/fioc /dev/fiob /dev/fiod > --assume-clean -N md0 > > When the performance turned out bad, after about 20 minutes, the > process was stopped. I broke the mirror, so the md0 device is only > striped, but the performance hit after 20 minutes happened again. > > The status of all cards are fine, no problems there. Then I created a > fs on only one device and have it run again. This time it worked fine. > The fs was in all cases ext3, no TRIM. > > Any suggestions, experience with this kind of setup? > > Thanks, > > Albert > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Roberto Spadim -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
