PC-3000 Forum

Hi, have a problem with WD 2500BPVT - after head swap it parks heads every now and then. Sometimes it reads hundreds of MB, sometimes few KB. Only way to keep it running is to click on hardware reset on the right. I have this option checked in options. Strange fact is that DE is still running marking everything orange when heads get parked. Drive has problems but it's kind of hard to sit and listen to 2,5" drive all night or day when it parks heads. Any ideas?

In DE create headmap and see if one head is reading much slower than another. Even though you changed heads, one surface may still be problematic. If head 0 is the culprit, then try sparing copy 0 of SA to copy 1 address. If head 1 is guilty, spare copy 1 to copy 0 address. This method can sometimes correct some odd behavior. Worth a shot.

Already tried. Sadly it happens on both heads. Surface is really bad. Lots of red sectors and a lot of orange. I'm trying to get as much as possible now. Later, if heads survive i'll try to get more from orange sectors, and then red ones.
I can't figure out why those heads are parking while DE is running. And why DE can't see it that heads and drive is off.

SGdata wrote:Source of the post Already tried. Sadly it happens on both heads. Surface is really bad. Lots of red sectors and a lot of orange. I'm trying to get as much as possible now. Later, if heads survive i'll try to get more from orange sectors, and then red ones.
I can't figure out why those heads are parking while DE is running. And why DE can't see it that heads and drive is off.

Hi ,
Go Slow Try PIO Mode access

You might have to disable some features in the Edit HDD ID menu such as the write cache and relocation. I've seen where one of those functions would cause such an issue.

Waiting for a next donor now, but will try with PIO and ID options.

I've tried all and thank you for your advice Amarbir and DataMedics. I've read a lot of data today but still drive parked heads few times while DE was moving on. Now's the time to read remaining red and black sectors.

What are you using for a read timeout? For a first pass I generally always just use 450ms. Much more than that can cause the drive to go unstable on bad sectors.

200 at first, 400 at second but there was still a lot to read so i used 800.