If bad sector starts to create then is it increase day by day?

jayadratha · Jan 7, 2014

■ I have a laptop HDD with 250+ bad sectors. I will check if they are not distributed, then I will create a partition of al those bad sectors & I will never use that partition.

So my questions are
1. If I do it and never use that partition then will the numbr of bad sector increase or not???

2. From some place I heard that if bad sector starts to create then it increases day by day. Is this true??

laviniuc · Jan 7, 2014

yes. once the first bad sectors are visible it means the hdd has already exhausted the backup sectors it has. as it looses more sectors any new one will show as bad.

at best, you can hope to use the hdd as a fail safe backup storage for data you can easily recover from other sources...

first thing to do would be to backup your data and get a replacement. or if it's new-ish get it to warranty.

jayadratha · Jan 7, 2014

laviniuc :

If I don't use that portion totally then also the good portion may get bad sector?? I know if another bad sector comes in the good portion then there will be no available backup sectors..

laviniuc · Jan 7, 2014

most of the time it's not the actual platen that breaks but the write/read heads so it doesn't really matter much if the bad area is used or not. after the sectors are marked bad they are no longer used so partitioning to include the bad sectors makes no difference really.

so please, listen to my advice, backup your data first and either get it warrantied or replaced. and at worse, use the bad hdd for what you can. which is to store on it stuff that even if you lose it doesn't matter. the hdd will fail completely eventually. maybe not today or tomorrow but it won't last long. you can keep secondary backups on it, or use it for unimportant stuff that you can live without. (for example i keep on an old 80gb wd hdd that's 8years old and dying some online games that i can always download again and simply didn't fit on my ssd)

you're lucky you caught it early and you have a chance to not lose data.

jayadratha · Jan 7, 2014

laviniuc :

most of the time it's not the actual platen that breaks but the write/read heads so it doesn't really matter much if the bad area is used or not. after the sectors are marked bad they are no longer used so partitioning to include the bad sectors makes no difference really.

so please, listen to my advice, backup your data first and either get it warrantied or replaced. and at worse, use the bad hdd for what you can. which is to store on it stuff that even if you lose it doesn't matter. the hdd will fail completely eventually. maybe not today or tomorrow but it won't last long. you can keep secondary backups on it, or use it for unimportant stuff that you can live without. (for example i keep on an old 80gb wd hdd that's 8years old and dying some online games that i can always download again and simply didn't fit on my ssd)

you're lucky you caught it early and you have a chance to not lose data.

Yah I have changed it already. I was thinking to make it a external with a 2.5 enclosure.

laviniuc · Jan 7, 2014

that's a good plan actually, just be sure not to store essential stuff on it.

jayadratha · Jan 7, 2014

laviniuc :

Is there any chance to know it is the problem of plotter or head??

laviniuc · Jan 7, 2014

no, and regardless of the problem it can't be fixed (or it's not worth fixing as it's cheaper to buy a newer larger drive instead)

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If bad sector starts to create then is it increase day by day?

jayadratha

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