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Does anyone know what kind of capacity the internal storage on NH has? I hope that it's not going to run into issues buffering across space and filling up it's
by douche 11y ago
Does anyone know what kind of capacity the internal storage on NH has? I hope that it's not going to run into issues buffering across space and filling up it's SD card like the remote game cameras that I've put up, that get punked by overactive squirrels.
- pjtr 11y agoInteresting question! "For data storage, New Horizons carries two low-power solid-state recorders (one backup) that can hold up to 8 gigabytes (64 gigabits) each." (From [1] linked above.)
- douche 11y agoThanks, sorry, did not read TFLs in any depth... Pre-coffee
- peter303 11y agoIn 2005 that was about what they could fit on the craft with weight, power, space limits. Now it just a single memory stick. The 2003 Mars rover Spirit was among the first to use flash. Even though the OS was 25 years old battle tested version of UNIX called VxWorks, the flash driver was new. It had a bug that incorrectly marked the free inode list on flash disk. So about six weeks into the mission the disk appeared to be full and caused a safe mode reboot every few hours. The engineers successfully uploaded a patch and one of rovers is still operational.
- natep 11y agoAnd we're still not flying memory sticks (but we are flying more memory than ever before). Fun fact: New Horizons has no file system on its recorder, but current missions at APL now do. http://flightsoftware.jhuapl.edu/files/2012/FSW12_Mick.pdf http://flightsoftware.jhuapl.edu/files/2012/FSW12_Mick.pdf