Re: below 10MB/s write on raid5

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Nix wrote:
[]
> With iflag=direct I get, um,
> 
> loki:/var/log# time dd if=/dev/md1 bs=1000 count=502400 of=/dev/null iflag=direct
> dd: reading `/dev/md1': Invalid argument

For direct i/o, you have to use blocksize =512, 1024, ... - multiple of a sector size.

/mjt
-
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

[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux