On Thu, 3 Sep 2009 10:05:58 +0800 Xiao Da <xiaoda99@xxxxxxxxx> wrote: > I'm a teacher of Beijing University of Posts and Telecommunications, > China. Our team are trying to build a remote data storage middleware > that sits between client and a remote storage device (e.g., an iscsi > device). To achieve transparency, the middleware acts as a scsi target > to client and as an initiator to the storage device. In this way, it > intercepts commands and data to and from the device and performs > functions such as 1) data encryption before storing to the device to > provide security; 2) data compression and deduplication to save > bandwidth. > > Now I have two questions: > > 1) Can we use tgt to implement such a middleware? You could, I guess. But I'm not sure SCSI target is the best solution for such remote data replication. > 2) If we use a scsi initiator (e.g., iscsi initiator) on the > middleware to interact with the remote storage device, how should tgt > integrate with the initiator? I didn't find any relevant code in tgt > source code. Are there any projects that do the similar thing so that > we see how they do it? tgt's iSCSI code runs in user-space. So you can access to the remote storage device without any tricks. -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
