check hdd health

check secor size 

 lsblk -o NAME,PHY-SeC

 

 In my setup of SAS drives I have a block size of 512, my SATA drive setup has 4096 block size, with a block size of 512 I get the following error: 

 # badblocks -svw -b 512 -c 65536 /dev/sda

badblocks: Value too large for defined data type invalid end block (5860533168): must be 32-bit value

# badblocks -svw -b 512 -c 32768 /dev/sda

badblocks: Value too large for defined data type invalid end block (5860533168): must be 32-bit value

 

 Increasing the block size to 4096 helped. 

 badblocks 

 Check the health of a harddisk with badblocks , attention the w option will delete all data on the disk. Use the blocksize from above with the badblocks command. 

 badblocks -svw -b 4096 -c 400000 /dev/sda

 

 It seems that the c option has a big impact on the runtime of badblocks . 

 smart 

 After running badblocks you can run a long selftest 

 smartctl -t long /dev/sda