IT Mode: Difference between revisions
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Flashing a SAS controller to [[IT Mode]] configures the SAS controller to provide the operating system with direct access to each of the attached drives; instead of a single RAID device. Tools are provided to build a FreeDOS USB image that comes bundled with the necessary | Flashing a SAS controller to [[IT Mode]] configures the SAS controller to provide the operating system with direct access to each of the attached drives; instead of a single RAID device managed by proprietary software. Using [[IT Mode]] provides greater flexibility, manageability, and portability. Tools are provided to build a FreeDOS USB image that comes bundled with the necessary software and helpful scripts to switch your SAS controller over to "IT Mode". | ||
== Preparing the FreeDOS Image == | == Preparing the FreeDOS Image == | ||
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cd itmode | cd itmode | ||
make</nowiki> | make</nowiki> | ||
'''Write the image''' | |||
Write the prepared FreeDOS image (ITMODE.img) to a flash drive using your preferred method. | |||
For example, with dd (replace paths to match your system): | |||
<nowiki> | |||
dd if=./ITMODE.img of=/dev/sdz bs=4M status=progress | |||
sync</nowiki> | |||
== Flashing to IT Mode == | == Flashing to IT Mode == | ||
Flashing works best when running the original OEM BIOS on your motherboard. | |||
=== PIKE 1068 === | === PIKE 1068 === | ||
TBD | |||
=== PIKE 2008 === | === PIKE 2008 === | ||
'''Step 1, Record SAS Address''' | |||
There will be a sticker on your card that lists your SAS address (ie: 500605B0xxxxxxxx). Write this value down. | |||
'''Step 2, Wipe''' | |||
<nowiki> | |||
cd ITMODE\P2008 | |||
WIPE | |||
reboot</nowiki> | |||
'''Step 3, Flash''' | |||
Enter your SAS address when requested. | |||
<nowiki> | |||
cd ITMODE\P2008 | |||
FLASH | |||
reboot</nowiki> | |||
=== Supermicro H8DCL-6 / H8DG6 / H8QG6 === | === Supermicro H8DCL-6 / H8DG6 / H8QG6 === | ||
'''Step 1, Record SAS Address''' | |||
There will be a sticker on your motherboard that lists your SAS address (ie: 500605B0xxxxxxxx). Write this value down. | |||
'''Step 2, Wipe''' | |||
<nowiki> | |||
cd ITMODE\SMICRO | |||
WIPE | |||
reboot</nowiki> | |||
'''Step 3, Flash''' | |||
Enter your SAS address when requested. | |||
<nowiki> | |||
cd ITMODE\SMICRO | |||
FLASH | |||
reboot</nowiki> | |||
Latest revision as of 06:41, 16 December 2025
Flashing a SAS controller to IT Mode configures the SAS controller to provide the operating system with direct access to each of the attached drives; instead of a single RAID device managed by proprietary software. Using IT Mode provides greater flexibility, manageability, and portability. Tools are provided to build a FreeDOS USB image that comes bundled with the necessary software and helpful scripts to switch your SAS controller over to "IT Mode".
Preparing the FreeDOS Image
Debian Dependencies
apt install curl p7zip mtools
Prepare the image
git clone https://git.15h.org/rane/itmode.git cd itmode make
Write the image
Write the prepared FreeDOS image (ITMODE.img) to a flash drive using your preferred method.
For example, with dd (replace paths to match your system):
dd if=./ITMODE.img of=/dev/sdz bs=4M status=progress sync
Flashing to IT Mode
Flashing works best when running the original OEM BIOS on your motherboard.
PIKE 1068
TBD
PIKE 2008
Step 1, Record SAS Address
There will be a sticker on your card that lists your SAS address (ie: 500605B0xxxxxxxx). Write this value down.
Step 2, Wipe
cd ITMODE\P2008 WIPE reboot
Step 3, Flash
Enter your SAS address when requested.
cd ITMODE\P2008 FLASH reboot
Supermicro H8DCL-6 / H8DG6 / H8QG6
Step 1, Record SAS Address
There will be a sticker on your motherboard that lists your SAS address (ie: 500605B0xxxxxxxx). Write this value down.
Step 2, Wipe
cd ITMODE\SMICRO WIPE reboot
Step 3, Flash
Enter your SAS address when requested.
cd ITMODE\SMICRO FLASH reboot