NASA Switches Curiosity Rover to Backup Computer Following Glitch
2 months ago
NASA’s Curiosity rover has already lengthy outlived its minimum projected lifespan with more than six Earth years — extra than 2,000 Martian days or “Sols.” However, NASA has introduced that it currently had to make use of the rover’s pc redundancy to hold the undertaking going. Curiosity has flipped over to its backup computer machine after the main system started out experiencing errors closing month.
Many NASA spacecraft and surface missions have redundant structures integrated. Once they’ve launched from Earth, there’s no way to restore harm to critical systems, so it makes the experience to double-up at the crucial additives. That includes Curiosity’s computers, which have been designed especially for the tough environment on Mars.
The rover has a pair of equal brains going for walks a five-watt RAD750 CPU. This chip is a part of the PowerPC 750 circle of relatives, however, it’s been customized to live to tell the tale excessive-radiation environments as you’d discover on Mars or in deep space. These radiation-hardened CPUs value $two hundred,000 every, and NASA equipped the rover with of them. Each laptop also has 256 kB of EEPROM, 256 MB of the DRAM, and 2 GB of flash memory. They run equal VxWorks real-time operating systems.
When Curiosity landed on Mars in 2012, it used the “Side-A” computer. However, just a yr later in 2013 (Sol 200), the computer failed due to corrupted memory. The rover got stuck in a bootloop, which avoided it from processing commands and tired the batteries. NASA achieved a swap to Side-B so engineers should carry out faraway diagnostics on Side-A. In the following months, NASA confirmed that a part of Side-A’s reminiscence become unusable and quarantined it. They saved Curiosity on Side-B, although.
Several weeks ago, Side-B started out experiencing problems that avoided the rover from storing key technological know-how and engineering facts. The team spent per week comparing Side-A and getting ready it for the change. NASA has now switched Curiosity back to Side-A while it investigates the hassle in more element, which it is able to best do when the other pc is energetic. Side-A still has broken memory from 2013, but the laptop received’t use those blocks.
NASA hasn’t stated how a great deal of Side-A’s RAM is terrible, and it best had 256MB to begin, however, the group does intend to move Curiosity operations returned to Side-B if possible. For now, the task is functioning generally on Side-A. There isn’t any immediately want to exchange again, but NASA could decide upon to make use of the bigger memory potential on Side-B.
Now read: Curiosity Rover Begins Its seventh Year on Mars Still Going Strong, NASA’s 2020 Mars Rover Will Have 23 Cameras, and Curiosity Data Suggests Ancient Martian Lake Could Have Harbored Life
What Is Your Computer Security Score? Take The Following Quiz
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Cybercriminals are continuously at the prowl seeking out vulnerabilities to exploit. Thousands of laptop networks, cell electronic gadgets, and personal computer systems are compromised every day. When hackers and crackers find out vulnerabilities they’ll take advantage of the weaknesses and assault for nefarious purposes.
A smart proprietor, supervisor or board member could want to answer the question posed in this record’s name, “Can your agency survive a cyber intrusion?”
Just clearly solution the questions that appear on the subsequent page and check the robustness of the security of your organization’s records system.
Quickly Test the Strength of Your Organization’s Computer Security
Answer the questions under with either a “Yes” or “No”.
1. Has your enterprise adopted a proper, written statistics safety plan?
2. Does your organization have an inventory of all of its data property?
Three. Has every statistics asset been classified as to its significance?
4. Do all your personnel have records security attention education?
5. Does your company hold a backup of its statistics in a comfy, off-site location?
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7. Do you have a plan to fend off a cyberattack and respond to a security incident?
8. Do you have a hardware and records destruction plan?
Nine. Does your employer have a mobile safety plan?
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11. Do your personnel sign-off on suitable use rules?
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If you replied “No” to any of the above questions your agency is prone to a cyber attack. It’s that easy. You are strongly advised to take steps to lessen the dangers and fortify the security of your computers and networks.
Originally posted 2018-10-07 05:47:56.