Smart is like a software built to monitor your harddisk.
When SMART warns you about your harddisk, it generally means it detects problems within your hardisks(which may be due to wear and tear), meaning that your harddisk is going to stop working very soon due to those problems
Yes, your harddisk will still work now, but in a the near future it may just stop working.(That is why they tell you to backup your data)
1) Yes, because it is mechanical fault , you have to change a harddisk
2) Yes it is that simple, but you need to reinstall your operating system in order for your computer to work. You can try to bring your old harddisk to the shop, and ask them to clone the content to the new harddisk, so that it will work when you just plug it in
The SMART warning is there to let you know that your HDD is failing.
SMART monitoring is made up of many different pointers, of which all are crucial to determining the HDD health status.
This is because a certain problem with your HDD can lead to the development of several other problems.
For example: high HDD temperatures could lead to the drive platters (glass platters on which data is stored) to warp and as such create bad sectors.
The presence of bad sectors may then lead to corruption to a certain extent, read/write errors, and in general, decreased HDD performance.
As such, when a SMART warning appears, it is to be taken seriously.
1. Yes, your hard disk may be on it's last legs, and SMART is telling you to salvage whatever it can before the hard disk dies.
2. Check the prices of both Sv center and other shops. Do a comparison and make a decision. The service center will generally be more expensive, but it's for the piece of mind . You might detect any other problems with your system.
Anyways, lately, can you hear any screeching sounds or "thud" sounds coming from your hard disk?
All these are signs of harddisk failure. Have you experienced any of such occurrence or anything out of the norm