my notebook HDD has reallocated sectors count, is it possible to recover this HDD to use for many years?
my notebook HDD has reallocated sectors count is it possible to recover this HDD to use for many years?
OK, so a 500GB HDD that has 3.4 years running time.
It might last another 5 years.Will he die fast?
I use it together with the SSD and the SSD contains the OS and my personal files
At work, I found a machine which was running very slowly - in use since about 2012, its old HDD had several hundred MILLION reallocated sectors.
100 million sectors would amount to 50GB. I can't see how that would be possible.
I suspect that the raw value would look a lot less frightening if it were expressed in hexadecimal. For example, some Toshiba models had reallocated sector counts which actually consisted of 3 hexadecimal numbers.
Well, on a 250 GB disk with an OS partition and lightly used storage partition, not unrealistic ;-) CDM diligently reported the sectors, I was inclined to believe it... The disk ran like an LTO3, it was so slow
Hitachi was the other example I was thinking of. When you convert the reallocated sector count to hexadecimal, you get a number which actually consists of two 16-bit numbers:
107873993 = 0x66E06C9 -> 0x066E / 0x06C9
The actual number of reallocated sectors is either 0x06C9 (= 1737) or 0x066E (= 1646).
No drive has 50GB allotted for spare sectors. The grown defect list (G-list) is a firmware module which is stored in a hidden, reserved System Area (SA) on the platters. This module is very small. It probably only handles a few thousand sectors. (I can find out the exact amount if you are interested.)
Your model is HDS721025CLA382 (HGST Deskstar 7K1000.C).
This is the product manual:
Hard Disk Drive Specification for HGST Deskstar 7K1000.C, HGST Ultrastar A7K2000, HGST CinemaStar 7K1000.C:
https://documents.westerndigital.co...kstar-7k1000-c-ultrastar-a7k2000-oem-spec.pdf
Here are two firmware resource dumps for the 500GB version:
http://files.hddguru.com/download/PC-3000-UDMA Support/Hitachi-IBM/Hitachi HDS721050CLA662-JP2OA41A-JP1572JE2P59GK.rar
http://files.hddguru.com/download/PC-3000-UDMA Support/Hitachi-IBM/Hitachi HDS721050CLA662-JP2OA41A-JP1572FN204YTK.rar
The RDMT.rpm module is the grown defect list. Its size is 32KB. Unfortunately it's empty in both cases, so I can't work out its structure. However, if we assume that each defect would be described with 8 bytes, then that corresponds to a maximum of 4096 reallocations. I guess it is possible for an entry in the list to correspond to an entire track, so that might allow for more sectors.