![]() ![]() After crossflashing to IT mode, the card is used by the OS via the much simpler mpt3sas driver. In some distributions this can cause issues, for example FreeNAS has issues pulling SMART data from drives connected to a MegaRAID controller. This can mean drastic improvements in IOPS with heavy SSD configurations for example.ĭifferent Driver: The stock Dell firmware (MegaRAID-based) uses the MegaRAID driver in Linux/FreeBSD/etc. For instance on the H310 Mini, it goes from 25 with the stock Dell RAID firmware to 600 with the LSI IT firmware. There's two main reasons to do this, assuming you don't need the hardware RAID functionalities of the stock firmware:īetter Performance: the plain LSI IT firmware in this guide drastically increases the max queue depth of the adapter. Because iDRAC checks the PCI vendor values of cards in this slot before allowing the server to boot, the generic full-size PERC crossflashing guides do not apply. Mini Mono refers to the small models that fit in the dedicated "storage slot" on Dell servers. This guide allows you to crossflash 12th gen Dell Mini Mono & full size cards to LSI IT firmware. H310/H710/H710P/H810 Mini & Full Size IT Crossflashing Option 2: Disable ThirdPartyPCIFanResponse using RACADM via SSH Option 1: Disable ThirdPartyPCIFanResponse using IPMItool via Linux Shell ![]()
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