On Thursday April 27, mingz@xxxxxxxxxxx wrote: > > On Fri, 2006-04-28 at 08:04 +1000, Neil Brown wrote: > > 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 > > only read from one disk, shall this be a "--read-preferred" ? No. The one(s) you don't read from is the odd-one-out. The one(s) you read from are 'normal' and don't get a special flag. > > i checked email archive, but still not quite understand on this > "--write-mostly". for raid1, u anyway need to write all components, so > why there is a "mostly"? > Mostly it will just write to this device. But if all the non-write-mostly device fail, then it will read from this device. So it isn't write-only. It is write-mostly. Make sense? NeilBrown - 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
