Re: Controlling Reading and Writing in RAID 1 configuration

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On Tuesday April 25, rikherrin@xxxxxxxxx wrote:
> Hi,
>   I have a setup where I want to use RAID 1 to mirror
> my data over the LAN.  I am exposing 2x500 GB-sized
> devices via iSCSI and was wondering if I could
> configure the RAID 1 to write to both members of the
> RAID 1 configuration but only read from one as one
> link is 1GbE while the other is lower but sufficient
> for writing.  Is this possible? Thanks for your help.

You'll be wanting the '--write-mostly' option to mdadm.
This requires a fairly recent kernel and mdadm.

NeilBrown
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