The final problem to solve was non-buffered IO operations. Since the USB itself still uses 512-byte sectors and the 4096-byte sector size is essentially a spoof, a conversion method had to be created so the read/write operation, based on the 4K sector size, would apply to the correct sectors on the USB. The sector size was increased to 4096, and as a result, that 32-bit sector count field can now represent a maximum of 16 TB. This field cannot be extended beyond 32-bits, so the alternative is to increase the sector size. Even with upgrading the SCSI commands, it won’t matter if the kernel can’t store the correct sector count. A 16-byte SCSI operation upgrades the logical block/sector number to a 64-bit number, making it possible to access the space beyond 2 TB.Īnother limitation is the kernel’s DISK_GEOMETRY structure. To access more data, 16-byte SCSI operations must be used. To get that figure, you simply multiply the maximum integer value that can fit into 4 bytes (4294967295) and multiply it by 512 (the standard sector size). Therefore, the maximum amount of data on the USB the Xbox 360 can access is 2 TB. 4 of those bytes refer to the logical block/sector number. The reason there is a 2 TB limit in the first place is because the Xbox 360 kernel only issues 10-byte SCSI operations. Here is a general overview in the meantime: The Apply Patches window explains everything in great detail: How this was doneĪ more technical deep-dive will be published another time, along with the source code to the patches.

Interested in larger than 2 TB internal SATA HDDs/SSDs? Leave a comment so interest can be gauged.įATXplorer 3.0 beta 20 has a new XL USB Tools menu with an option to format a USB, and to apply patches:.

FATXplorer supports formatting and mounting Titan partitions now, and Cerbios support has been updated.

Games in both GoD and xex format launch without issue.

All 16 TB storage is fully supported by the Xbox 360 & homebrew dashboards.

Use any 3.5″ 2 TB – 16 TB HDD you want and use all the space for game, DLC, profile, and homebrew storage.

You can use two 16 TB USBs for 32 TB extra storage.

Patches increase performance of the Xbox 360 USB stack and make USBs load up to 4x faster.

16 TB USB xeBuild patches are now available and are free.

Teased back in May 2021, the xeBuild patches are now ready, and FATXplorer has a new formatting tool to get USBs ready in short order. Today, another 16 TB solution has arrived, but for Xbox 360 this time: the ability to use up to two 16 TB external USB storage drives on RGH or JTAG Xbox 360s. 2022 has seen 2 new BIOS releases ( Cerbios, Titan) for the original Xbox that add support for up to 16 TB internal hard-drives. It is an exciting time to be an original Xbox or Xbox 360 enthusiast.

Fatxplorer xbox 360 serial number