Big Wave Dave wrote: > On Tue, Mar 3, 2009 at 8:58 PM, Dylan Distasio <interzone@xxxxxxxxx> wrote: > >> I wanted to check to see if anyone could provide a rough estimate of >> how long a RAID 5 initial build should take under mdadm. >> >> I am creating a RAID 5 array with 5x1TB Western Digital Black 7200RPM >> SATA drives on the following system: >> >> Ubuntu 8.10 / ext3 filesystem on array and OS drive >> 1 gig of PC3200 RAM >> AMD Athlon 64 3200+ >> Nforce4 motherboard >> >> I am getting a minimum speed of approximately 14000K/sec with an >> estimated finish time of roughly 19 hrs from now. >> >> Is this a reasonable speed for creating a RAID 5 array with mdadm? >> >> Thanks. >> > > I actually did a similar setup recently, and it was very similar > timing. I'm not sure if it should have been faster/slower, but I can > confirm I saw the same thing. > > Dave > -- > 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 > I guess it depends on how your HW is configured I've a 5x1Tb raid5 setup and that took ~ 2hr 40 min (@~72Mb/s) I dunno what your disk IO topology is but it sort of sounds like you're maxing out the bus IO bandwidth assuming you're sharing the disk IO with other cards.. I dunno, video/tv card/sound whatever. Phil =--= -- 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
