On Tue, 29 Jul 2008 13:56:14 -0500 James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote: > On Tue, 2008-07-29 at 14:54 -0400, Ric Wheeler wrote: > > Martin K. Petersen wrote: > > >>>>>> "James" == James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> writes: > > >>>>>> > > > > > > James> The problem, which ata_ram also suffers, is that the tools we > > > James> most need to test are the ones for manipulating non volatile > > > James> characteristics (like partition tables). We'd really like the > > > James> disk contents to survive reboot for this ... > > > > > > Yeah, I should add that I wanted persistence too. I went through a > > > whole stack (well, 5-6 or so) fibre channel drives from various > > > vendors and attempted to low-level format them to 4KB sectors. Most > > > of them laughed in my face. One of them tried to comply and > > > irreparably confused its firmware in the process. > > > > > > Just yesterday I received a couple of prototype drives in the mail. > > > I'll ask the vendor whether they support 4KB and if so I'll give them > > > a whirl. > > > > > Isn't this a great use case for a SCSI target device where our target > > can be a software disk on a remote host? What is missing for us to put > > something like that together? > > Technically nothing. Tomo should already have one for the STGT test > infrastructure (I've cc'd him). Yeah, stgt also enables you to use a software media changer and a software DVD drive (and we are working on VTL). http://stgt.berlios.de/ You can connect to a remote host with iSCSI. FCoE might work since Mike Christie has used stgt to work on the FCoE initiator driver. stgt doesn't support non-512 byte sector sizes now but I'll add the support shortly. I want to try DIF with iSCSI and FCoE. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
