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How many bad sectors are okay?
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<blockquote data-quote="blr_p" data-source="post: 1073819" data-attributes="member: 10952"><p>h</p><p>This is the bit I don't get <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /></p><p></p><p>It's not marking the slow sectors with anything is it. The erase delays scan fills the slow sectors so they cannot be used <strong>without</strong> marking them as bad.</p><p></p><p>So what point is there to follow up with a remap in this case ?</p><p></p><p>The drive has just been erased (zero filled), and the slow sectors have also been filled <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>The other point with remap of bad sectors is also confusing. If a sector is bad, ithe dirve on its own marks it as such and nothing more gets done with it. What good will remapping in this case do then ?</p><p></p><p>Given the sequence matters, ie erase delays <strong>then</strong> remap. Tho some ppl on his forum tend to mix it up his FAQ clearly states remap follows after erase delays.</p><p></p><p>Then there is the makebad program which marks any of the slow sectors as bad so they're never used. I did not see much point with this as a filled sector is as good as useless. It's a better method to marking as bad and increasing the bad sector count.</p><p></p><p>What I like with MHDD so far is that its a quick way to check a drive with a scan and see its general health, that it talks directly to the HD without any intervening windows layer is a plus. A HDD program that talks to the drive directly via the BIOS will be more consistant with results than one doing it on top of windows <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>I guess the remap could help with restoring data from a bad sector by repeated retries. Maybe you get lucky or not.</p><p></p><p>What other unique uses does MHDD have for you ?</p><p></p><p>I'm currently using it on my worst 120GB drive, reallocated sectors through the roof, HD Tune marks this drive as failed (!), Its got tons of bad sectors (UNC + one other flag). But a surface scan shows them to be in a cluster so i'd made two partitions earlier and left the intervening 9GB which has all the bad sectors out. chkdsk on the two created partions yields no bad sectors.</p><p></p><p>So i'm giving this drive the full MHDD erase, scan & remap treatment to see what difference it makes with future scans. Other than the bad cluster in the middle the rest is not bad, very few greens even.</p></blockquote><p></p>
[QUOTE="blr_p, post: 1073819, member: 10952"] h This is the bit I don't get :( It's not marking the slow sectors with anything is it. The erase delays scan fills the slow sectors so they cannot be used [b]without[/b] marking them as bad. So what point is there to follow up with a remap in this case ? The drive has just been erased (zero filled), and the slow sectors have also been filled :) The other point with remap of bad sectors is also confusing. If a sector is bad, ithe dirve on its own marks it as such and nothing more gets done with it. What good will remapping in this case do then ? Given the sequence matters, ie erase delays [b]then[/b] remap. Tho some ppl on his forum tend to mix it up his FAQ clearly states remap follows after erase delays. Then there is the makebad program which marks any of the slow sectors as bad so they're never used. I did not see much point with this as a filled sector is as good as useless. It's a better method to marking as bad and increasing the bad sector count. What I like with MHDD so far is that its a quick way to check a drive with a scan and see its general health, that it talks directly to the HD without any intervening windows layer is a plus. A HDD program that talks to the drive directly via the BIOS will be more consistant with results than one doing it on top of windows :) I guess the remap could help with restoring data from a bad sector by repeated retries. Maybe you get lucky or not. What other unique uses does MHDD have for you ? I'm currently using it on my worst 120GB drive, reallocated sectors through the roof, HD Tune marks this drive as failed (!), Its got tons of bad sectors (UNC + one other flag). But a surface scan shows them to be in a cluster so i'd made two partitions earlier and left the intervening 9GB which has all the bad sectors out. chkdsk on the two created partions yields no bad sectors. So i'm giving this drive the full MHDD erase, scan & remap treatment to see what difference it makes with future scans. Other than the bad cluster in the middle the rest is not bad, very few greens even. [/QUOTE]
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