Re: write-behind has no measurable effect?

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

 



On Mon, Feb 14, 2011 at 02:56:37PM -0800, Doug Dumitru wrote:

> Not to be too cute, but the man page for mdadm says that
> --write-behind is only attempted on drives marked --write-mostly.  I
> did not see a --write-mostly in your array create statement.

Yeah, I abbreviated it as -W:

> > mdadm --create /dev/md/ssdraid --force --assume-clean --level=1 \
> > --raid-devices=3 --bitmap=internal --bitmap-chunk=262144 \
> > /dev/sdo2 --write-behind=16383 -W /dev/sd[nm]2

> Also, are you trying to create a three-way-mirror or mirror the one

A three-way mirror.

-- 
                     Andras Korn <korn at elan.rulez.org>
                     Caesar si viveret, ad remum dareris.
--
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