Tim wrote: > On Fri, Sep 26, 2008 at 12:29 PM, Miles Nordin <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > >>>>> "t" == Tim <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> writes: > t> > http://www.supermicro.com/products/accessories/addon/AOC-USASLP-L8i.cfm > I'm not sure. A different thing is wrong with it depending on what > driver attaches to it. I can't tell for sure because this page: > > http://linuxmafia.com/faq/Hardware/sas.html > > says the LSI SAS 3800 series uses a 1068E chip, and James says (1) > 1068E is supported by mpt, (2) LSI SAS 3800 uses mega_sas. so, I > don't know which for that card, which means I don't know which for > this card.
There are several LSI cards which use the 1068 and 1068E chip. Some of these use mpt(7d), some use mega_sas(7d). It all depends on the firmware of the card, basically. You could also have a look at the PCI IDs database at http://pciids.sourceforge.net to see what the name to pci vid/did mapping is. That provides a fairly good indicator of whether you'll need mpt(7d) or mega_sas(7d). > If it's mpt: > > * does not come with source according to: > > http://www.openbsd.org/papers/opencon06-drivers/mgp00024.html > http://www.opensolaris.org/os/about/no_source/ > > If it's mega_sas: > > * does not come with source > > * driver is new and unproven. We believed the Marvell driver was > good for the first few months too, the same amount of experience we > have with mega_sas. > > * not sure if it's available in stable solaris. > Someone's already gotten it working, if they're watching I'm sure > they'll pipe up on what driver it uses. http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/io/mega_sas We've got this driver into Solaris 10 Update 6. I'm still keen to find out from Miles why mega_sas is "new and unproven" given that it's been in NV since build 88. Miles - if you're seeing problems with it, please let us know so that we can fix them. If you don't tell us, how will we ever know? > In either case: > > * may require expensive cables > Nope, cables are standardized. I'm not sure what your definition of > "expensive" is but I believe they were roughly 15$ for a SAS>>4sata ports. If you want to get an external SAS cable (particularly if it's got the InfiniBand-style SF8088 connector), then that might cost you a bit. If you just want to connect devices internally, then I would expect the cables to be somewhat cheaper. Either way, with more and more volume of cards and devices on the market, the pricing for cables should decrease too. [snip] James C. McPherson -- Senior Kernel Software Engineer, Solaris Sun Microsystems http://blogs.sun.com/jmcp http://www.jmcp.homeunix.com/blog _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
