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Shorted hard drive
Pentium100:
--- Quote from: Freedom Kira on December 19, 2012, 05:18:59 AM ---Regular hard drives usually have some kind of read error recovery. This causes a hanging system, not a crash, but it is preferable over throwing read errors everywhere if used as a single disk, as they are designed for. So, no, having TLER in a single disk is detrimental. It's useful in a RAID array because a read error from a single disk can be repaired easily, assuming there is enough redundancy to do so.
--- End quote ---
Reported read errors are preferable to random slowdowns, freezes and crashes (if the drive in question is the system drive and takes too long to read the sector and Windows decides to completely freeze or crash). When it is confirmed that there are read errors, I can run software to try to recover the data (or alternatively, just remap them), but having the drive itself do it is not that good. Well, at least not for me, since I do not like getting up and seeing one of my servers frozen because a single HDD (out of 10) decided to take too long to read a sector instead of just reporting the read error. If the drive manages to successfully read the secotor (after a minute) or completely freeze the system, I may not even know that this was because of a hard drive (since a system can freeze because of other problems too), so that makes diagnosing the problem take longer.
I recently installed Windows on a laptop that had a hard drive with a lot of bad sectors (the owner of the laptop said he'll buy a new drive eventually, I guess when the drive fails completely). Except those sectors weren't really "bad" - the drive would read them ... in 10 - 20s. This not only caused Windows to slow down reading the affected sectors, but also caused the drive to drop to PIO mode making it extremely slow even for good sectors. No filesystem tool would detect those sectors, I had to scan the drive with MHDD, make a list of the "slow" sectors and then manually mark them as bad in the FAT (I had to use FAT32 because I don't know how to manually mark bad clusters on NTFS). If the drive had TLER, all those sectors would have been marked as bad during the initial format and I would not have had to do this.
Freedom Kira:
Well, okay. It may be detrimental to you, but I would put it as beneficial to the average consumer who does not run several servers and does not have data recovery software.
onsinch:
--- Quote from: Pentium100 on December 19, 2012, 07:22:21 PM ---... I can run software to try to recover the data ...
--- End quote ---
You can, but can my grandparents???
kitamesume:
--- Quote from: onsinch on December 20, 2012, 08:35:15 AM ---
--- Quote from: Pentium100 on December 19, 2012, 07:22:21 PM ---... I can run software to try to recover the data ...
--- End quote ---
You can, but can my grandparents???
--- End quote ---
you could offer the service yourself you know, you could ask for compensation in return. i do this with my dad's work computers for some pocket change.
onsinch:
--- Quote from: kitamesume on December 20, 2012, 10:03:54 AM ---you could offer the service yourself you know, you could ask for compensation in return. i do this with my dad's work computers for some pocket change.
--- End quote ---
in my family if i refuse to do something i get told off, whereas my younger siblings get paid >:( , its actually gotten so bad that my younger siblings actually rake in something around £20 a week compared to my £10 >:(
however, i get £7500 just to pass my end of semester exams :laugh:
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