On Tue, Jul 29, 2008 at 02:48:31PM -0400, 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. I have access to disks with native 4KB sectors now too. Would interested parties be willing to share test plans, so we could be sure we have coverage wrt correctness: kernel internals, userspace tools like parted, fdisk, kpartx, apps using O_DIRECT)? Benchmarking winds up being an NDA activity this early in the game so I don't want the focus of any joint work to be benchmarks yet. -- Matt Domsch Linux Technology Strategist, Dell Office of the CTO linux.dell.com & www.dell.com/linux -- 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
