Disk Stuff

Bad Blocks 

badblocks -wsv /dev/device 

SATA  

https://grok.lsu.edu/article.aspx?articleid=16716

sudo hdparm -I /dev/sd 

sudo hdparm –user-master u –security-set-pass p /dev/sdb 

commit with 

sudo hdparm –user-master u –security-erase-enhanced p /dev/sdb 

or 

sudo hdparm –user-master u –security-erase p /dev/sda 

NVME 

https://manpages.debian.org/testing/nvme-cli/nvme-format.1.en.html

BAD BLOCKS 

https://wiki.archlinux.org/title/badblocks

SHRED 

shred -vfz [/file/system/path]shredding a ‘disk’ 

According to the man page, some of the [OPTIONS] you can use with shred are: 

• -n, –iterations=N 
  Instead of the default (3) times, overwrite the data N times. 
• -z, –zero 
  Add a final overwrite with zeros to hide shredding. 
• -f, –force 
  Force the permissions to allow writing if necessary. 
• -v, –verbose 
  Show progress in detail. 
• -u, –remove 
  Truncate and remove file after overwriting. 

Swap

https://www.linkedin.com/pulse/enhance-linux-performance-step-by-step-guide-increase-akshay-kaushik-f3y6c

HDPARM tuning

https://www.linux-magazine.com/Online/Features/Tune-Your-Hard-Disk-with-hdparm