$ sudo mfiutil -u 2 Edited Novemby dukzcryģ/1/13 5:36:01.000 PM kernel: super->InitializeControllerģ/1/13 5:35:50.446 PM : *** launchd has started up. Q: I get " mfiutil: mfi_open: not such file or directory " errorĪ : It maybe that unit number of you device is not 0 (which is default). See Use kext from "Unsafe settings unlocked.zip" and set "AllowSleep" key to true. Q : My Mac stopped to go sleep after i've loaded your kext.Ī : This is awaited. If the settings you set are inappropriate, you'll see the I/O errors. For the tests you need to stick to the system.log and start a transfer of a >= 100gb data. "MaxTransferSizePerSegment" does the same but for a single SGL entry (will never be larger than MaxTransferSize). If you set them to some enormously big value then they will be truncated to the max values your hardware can achieve (may still be not safe enough for successful data transfers). The "MaxTransferSize" determines the maximum size of data transfer (in bytes) per request your controller can catch. The "MaxSGL" option is number of scatter gather list entries you controller can handle. Before playing with them you need to detach all HDDs with critical data and attach some spare HDD for doing the tweaks. The plist from "Unsafe settings unlocked.zip" allows tweaking of dangerous options. Q: Is it possible to push more from my setup? If no luck t ry "Uncontiguous enumeration.zip" version. It's under "Settings" dictionary in kext's plist.Ī: Set them as virtual (logical) disks in controller's BIOS. What should I do?Ī: Try inverting "PreferMSI" key value. Q: The driver loads but my device doesn't show up anywhere in profiler. Q: Any chance to make cards based on SAS2208 chip work?Ī: Not currently, the chip belongs to the same family, but it requires a lot of handling different from common handling for supported cards. Q: I can't manage controller via supplied utilityĪ: Only monitoring functional is supported, management is done via controller BIOS This one was requested few times at InsanelyMac and other Mac-related communities. Here's my driver for LSI MegaRAID SAS family of controllers called SASMegaRAID.kext.
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