Hi, I have a setup with a RAID-0 device configured. I export this RAID device as a iSCSI LUN to remote machine over iSCSI protocol. Whenever the iSCSI initiator does IO on this RAID device, the iSCSI target driver queues a block request further to be handled by RAID driver. My question is - when exactly RAID-0 driver acknowledges the upper layer (block) with the (read / write) command completion? Does it send completion after the data is successfully written to the disks OR Does RAID-0 driver maintains its own cache and even before data is successfully written to disks, it sends completion? If its the later case, then iSCSI initiator might get false responses and in case of power failure of my target machine, it might corrupt the data. Thanking in advance, Tanmay -- 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
