aristizb@xxxxxxxxxxx wrote: > Hi, > > I am currently working with a software Linux RAID1, with external bitmap > and no write-behind option. Does the RAID controller keep the write > order fidelity?. > > If an application writes some blocks on the RAID device in a particular > order, can I ensure that these blocks will be written to the devices > conforming the RAID on the same order, or at least on the main disk? > (disk 0 on the RAID). I suspect you need to do some research on 'barriers'. I think the answer at present is 'no'. Hence messages like: Filesystem "md0": Disabling barriers, not supported by the underlying device > The version of mdadm I am suing is 2.6.2. That's not important. The kernel version is; that's where the md driver lives. David -- 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
