Question about Hitachi ATMR and service areaWhere are versions 0, 1 and Factory service area modules stored on Hitachi ATMR drives? On an ATMR drive, I have trouble reading v1 of many modules. So I edit NV-RAM in PC3000 and change heads from "00 01 02 03" to "00 00 02 03", expecting that in this case, both versions of the modules will be read from layer 0, and should always success. But no, version 1 of the modules still fails, while version 1 works, so it doesn't appear to be the surface number. I have tried "00 00 00 00", "01 01 01 01", "02 02 02 02" and "03 03 03 03", but the drive only works if the first head is 00, and if it works, I always get the same errors when checking modules. The reason I ask is that I was planning to use this drive for a smart hotswap, but I don't want to overwrite the only working modules (v0), so that I can recover the drive later in case something goes wrong.
I was hoping to use smart hotswap to try to rescue the clicking drive, below. If you have another suggestion, I'm grateful.
Question about clicking Hitachi ATMR drive (and experiences)I have a Hitachi ATMR from June 2004 that I'm trying to recover data from. It's clicking, exactly like the sample Hitachi sound hitachi_ibm_clicking.mp3 from sample sounds page (below), except I can also hear that the drive is speeding up and down during clicking.
http://files.hddguru.com/download/Hard% ... g%20Noise/ So to sum up:
1. drive spins up
2. drive clicks
3. never comes out of BSY
I have been working on this disk for a while, initially it started clicking before I received it. Working a little with PC3000, I was able to ID the drive and recover some of it, including some service area. Then, while reading, it suddenly started clicking and after that I have not been able to ID the drive.
Since then, I managed to find 2 donor drives. I changed heads (actually also magnets, parking bracket, all small internal parts) from donor #1, but it's still clicking and accelerating/decelerating, though it sounds a bit cleaner. So I've been working with the drive, trying to get it to ID. at this point, I've managed to edit heads map from "00 01 02 03" to "03 02 01 00" (I've tried lots of other combos too), I managed to get the disk to stop clicking and come out of BSY, but not ID. So my challenge there is maybe to reassign heads map while it is on, so that I can re-initialise it. I can't figure that out. On the bright side, however, it seems to be trying to read something when verifying modules, so it's not completely dead.
I have also tried hot swap with patient PCB, PCB from spare parts donor #1, and PCB from donor #2 which matches patient best on various parameters. When hot-swapping, I always start donor #2 with the PCB, then move PCB to patient drive. The first time I tried, it actually started without clicking, but for some reason PC3000 thought the drive was locked, and requested some jumper settings I didn't understand. Neither donor not patient are locked. I ended up repowering and trying again, but never got the same result so far, only clicking. I'm not sure, but was hoping perhaps a smart hot swap might work better, but I have to figure out how to make sure I can recover donor #2 first, in case I need to use it more later (see initial question).
In my experience, ATMR drives allow the platters to be moved from one drive to another - I did this with an ATMR 60GB drive, successfully. So for that reason, I think these drives are very forgiving when it comes to microjog-parameters. What do you think?
I appreciate any suggestions for what to do next.