--- On Sat, 2/1/10, Kristleifur Daðason <kristleifur@xxxxxxxxx> wrote: > From: Kristleifur Daðason <kristleifur@xxxxxxxxx> > Subject: Re: Raid 5 to 6 reshape q > To: Jon@xxxxxxxxxxxxxxx > Cc: linux-raid@xxxxxxxxxxxxxxx > Date: Saturday, 2 January, 2010, 12:19 > On Sat, Jan 2, 2010 at 8:52 AM, Jon > Hardcastle <jd_hardcastle@xxxxxxxxx> > wrote: > > Hi guys, thanks for your help getting me going with > this over the last week. I kicked it off last night and all > is well. > > ... > > The only Q i have is it seems to be abit slow? > > ... > > md4 : active raid6 sdg1[4] sdf1[0] sde1[1] sdd1[2] > sdc1[5] sdb1[3] sda1[6] > > 2441919680 blocks super 0.91 level 6, 64k > chunk, algorithm 18 [7/6] [UUUUUU_] > > [===>.................] reshape = 17.9% > (87600896/488383936) finish=2881.3min speed=2317K/sec > > That's very slow. An order of magnitude too slow in my > view. I was > initially seeing speeds like this during my recent reshape, > but got it > up to around 30MBps. I can't recall exactly what I did to > get it > running better - it was the equivalent of giving the > television a good > whack - but I seem to recall that increasing the md stripe > cache size > helped the most. > > I don't currently have access to my work computer where the > command > history lives, so this is all I have for now. If I find > anything more > to try, I'll chime in. > > -- Kristleifur > -- > 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 > Well it is trundling along at about that speed still if only i had know that if i was adding 2 drives it would be much quciker as i plan to add another drive at the end of the week! i figured it was more to potentially go wrong! Anyways if you can suggest any commands that might speed it up i'd be very grateful! ----------------------- N: Jon Hardcastle E: Jon@xxxxxxxxxxxxxxx 'Do not worry about tomorrow, for tomorrow will bring worries of its own.' *********** Please note, I am phasing out jd_hardcastle AT yahoo.com and replacing it with jon AT eHardcastle.com *********** ----------------------- -- 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
