On Sat, Mar 14, 2009 at 12:57 PM, Miles Nordin <car...@ivy.net> wrote:
> >>>>> "jcm" == James C McPherson <james.mcpher...@sun.com> writes: > > jcm> As for "will it work on sparc" - yes, I would expect so. BUT > jcm> without fcode it won't be bootable. That's what you are really > jcm> asking, isn't it? > > just if it will work. I want to add a slog. > > jcm> It turns out you can change between IT and IR firmware using > jcm> LSI's sasflash utility, > > is there a reason to use one mode or the other? itmpt sounds like it > only works with IT but that's a WAG and probably wrong. Is there a > way to tell which mode mpt is using right now? Does mpt behave > differently depending on mode? > > Thanks for the pointer to raidctl---I got this out of it: > > -----8<----- > ja...@dharavi:~$ pfexec raidctl -l -g 0.2.0 2 > Disk Vendor Product Firmware Capacity Status HSP > > ---------------------------------------------------------------------------- > 0.2.0 ATA WDC WD10EADS-00 1A01 931.5G GOOD N/A > GUID:50014ee202720bc0 > ja...@dharavi:~$ pfexec raidctl -l 2 > Controller Type Version > ---------------------------------------------------------------- > c2 LSI_1068E 1.22.01.00 > ja...@dharavi:~$ > -----8<----- > > I was hoping to see an -IT or -IR suffix on the version number but > there isn't one. In the README for sasflash, it looks like SASFLASH > will not tell you what kind of firmware you currently have, either, > just let you choose what kind to load. > > In the ^C peecee boot widget, it shows my card's firmware version > ending in -IT, so I think I have IT firmware. If I do, then Will's > speculation that IT means the card acts as a SATA target is an > incorrect guess because it's acting like a normal card right now. > > but on SPARC I'd have no way of seeing this -IT suffix, and I don't > know if I trust it anyway without understanding what the different > versions are supposed to do differently. so, is there any way to tell > from mpt in what mode the card's running, or what the consequence of > that is? > > It sounds like it's possible one could buy a 1068E card from another > vendor and end up with -IR firmware instead, without changing chip > number or necessarily even PCI ID, so if we are trying to predict > which cards behave how, it's worth trying to figure out. > > I did try to RTFM. On OpenSolaris I get this loveliness: > > ja...@dharavi:~$ man mpt > No manual entry for mpt. > > on SXCE I do at least have a man page, but there's no mention of IT, > IR, SR inside it. > IR==integrated RAID. This is a stripped down version of raid. It only does 1/0/1E. No 5 or 6. See: http://www.lsi.com/storage_home/products_home/host_bus_adapters/software_solutions/integrated_raid/ IT==initiator. In other words it should function as a regular non-RAID adapter or as a target. Initiator vs. target depends entirely on the driver bound to the card. See: http://www.supermicro.com/manuals/other/LSI%20MegaRAID_Configuration_for_the_LSI_1068_Controller.pdf SR==software RAID. I believe this is nearly the same as IR mode, but Supermicro for instance has an add-in card that will allow it to do RAID-5 as well. --Tim
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