#bad-blocks

Resolved: How are SMART selftests related to badblocks? #fix #programming #answer

How are SMART selftests related to badblocks?

The smartctl tool allows initiating a long self-test (smartctl -t long /dev/sda). However there’s also badblocks that I can run on a drive. How are the two related? If badblocks detects bad blocks, does the drive automatically update its SMART values (e.g. by updating its relocated sectors count)? Can badblocks replace smartctl -t long, or vice versa?

Resolved: From bad sector to "damaged file" – did it for Linux/ext3, can I do it for Windows/NTFS? #development #fix #computers

From bad sector to "damaged file" – did it for Linux/ext3, can I do it for Windows/NTFS?

When a SMART check on a disk reports a bad sector, it is important to be able to identify the file that has the bad sector – and restore it from backups. Below, I show how I did this for my Linux/ext3 VMWARE server – but does anyone know if this can be done for Windows/NTFS?

Here’s how I did it for…

Answer: How do SSD fail near end of life? #fix #programming #solution

How do SSD fail near end of life?

Let’s say a MLC SSD has lasted a very long time and the first cell has hit its last erase cycle and refuses to erase.

What happens after that? Does the controller detect that as a bad block and moves to the next one and tries to erase that instead? Would the total capacity of the drive just slowly decrease over time?

EDIT

And of course we can forget about wear…

How to: How many SMART sector reallocations indicate problems? #computers #it #answer

How many SMART sector reallocations indicate problems?

I have a NAS appliance that is just over a month old. It is configured to email me alerts generated from the hard drives’ SMART data. After one day, one of the hard drives reported that a sector had gone bad and been reallocated. Over the first week, that number climbed to six total sectors for the hard drive in question. After a month, the…