Seagate Grenada ProcessRWError

[Jared]

I've got this DM drive here that I'm now on my second head swap. First time it worked for a whole five minutes then shut down. This time it again ID'd when first powered on, was busy re-allocating sectors so I went in and disabled that in RAM which seemed to stabilize it. Then I stupidly went ahead and disabled it in the SA just in-case I needed to power cycle it later (not realizing that the utility automatically power cycles it when it's done writing to the SA ).

Now it just stays busy and gives this in terminal:
ProcessRWError -Read- at LBA 0000000000087BA5 Sense Code=C4090082
Starting LBA of RW Request=0000000000087BA9 Length=0000009C
ProcessRWError -Read- at LBA 0000000000087BA9 Sense Code=C4090082
Starting LBA of RW Request=0000000000087BAD Length=00000098
ProcessRWError -Read- at LBA 0000000000087BAD Sense Code=C4090082
Starting LBA of RW Request=0000000000087BB1 Length=00000094
ProcessRWError -Read- at LBA 0000000000087BB1 Sense Code=C4090082
Starting LBA of RW Request=0000000000087BB5 Length=00000090
ProcessRWError -Read- at LBA 0000000000087BB5 Sense Code=C4090082
Starting LBA of RW Request=0000000000087BB9 Length=0000008C
ProcessRWError -Read- at LBA 0000000000087BB9 Sense Code=C4090082
Starting LBA of RW Request=0000000000087BBD Length=00000088
ProcessRWError -Read- at LBA 0000000000087BBD Sense Code=C4090082
Starting LBA of RW Request=0000000000087BC1 Length=00000084
ProcessRWError -Read- at LBA 0000000000087BC1 Sense Code=C4090082
Starting LBA of RW Request=0000000000087BC5 Length=00000080
ProcessRWError -Read- at LBA 0000000000087BC5 Sense Code=C4090082
Starting LBA of RW Request=0000000000087BC9 Length=0000007C
ProcessRWError -Read- at LBA 0000000000087BC9 Sense Code=C4090082
Starting LBA of RW Request=0000000000087BCD Length=00000078
ProcessRWError -Read- at LBA 0000000000087BCD Sense Code=C4090082
Starting LBA of RW Request=0000000000087BD1 Length=00000074
ProcessRWError -Read- at LBA 0000000000087BD1 Sense Code=C4090082
Starting LBA of RW Request=0000000000087BD5 Length=00000070
ProcessRWError -Read- at LBA 0000000000087BD5 Sense Code=C4090082

and it just keeps going like that. Any ideas about how I can break this cycle and get this thing to work again? I know the heads survived the swap at least.

 

[jol]

there is no SA damage ?

 

[Jared]

Possibly, this is the second head swap and both times I got one startup out of it. The first time I even got to backup the resources which went fine. I'm thinking there's damage elsewhere on the platters and it's just killing the heads. Which is why it only starts up once, but not again after that.

This time its at least not clicking, but just keeps spinning and returning this message. I think I'm gonna try moving over the head adaptives and see if it helps.

 

[Jared]

Well, that didn't help any. Same response. IRS, you seem to be very knowledgeable of what these Seagate readouts mean. Any ideas? This is a new one to me, though I presume it means it's not fully reading some part of the SA.

 

[Jared]

Here's the full terminal log of what it's saying now... It's not counting nearly as long now.

Rst 0x40M
 MC Internal LPC Process
 Spin Up
TCC-001F
 RECOV Servo Op=0900 Resp=0005
 RECOV Servo Op=0600 Resp=0005
 RECOV Servo Op=005B Resp=0005
 RECOV Servo Op=015B Resp=0005
 RECOV Servo Op=005B Resp=0005
(DOS) Table Read FAIL
DOS: MAGIC CONFIG NUMBER MISMATCH
(DOS) Requesting File Save

 RECOV Servo Op=015B Resp=0005
(DOS) Table Read FAIL
 RECOV Servo Op=006B Resp=0005
 MCMainPOR: EXCEPTION: SIM aborted prior to MCMT read
 MCMainPOR: EXCEPTION: POR Failed General
 MCMainPOR: Feature Disabled...
 RECOV Servo Op=016B Resp=0005
 RECOV Servo Op=005B Resp=0005 PASS
 RECOV Servo Op=016B Resp=0005
 RECOV Servo Op=006B Resp=0005
 RECOV Servo Op=016B Resp=0005
Starting LBA of RW Request=0000000000087AD1  Length=00000174
ProcessRWError -Read-   at LBA 0000000000087AD1  Sense Code=43110081
Starting LBA of RW Request=0000000000087AD1  Length=00000174
ProcessRWError -Read-   at LBA 0000000000087AD8  Sense Code=43110081
Starting LBA of RW Request=0000000000087AD1  Length=00000174
ProcessRWError -Read-   at LBA 0000000000087AD9  Sense Code=C3160080
 MC Internal LPC Process
Starting LBA of RW Request=0000000000087ADD  Length=00000168
ProcessRWError -Read-   at LBA 0000000000087B8F  Sense Code=C3160080
 RECOV Servo Op=006B Resp=0005
 RECOV Servo Op=016B Resp=0005
No HOST FIS-ReadyStatusFlags 0002A1A5

Then it just stops and stays bsy forever. Still spinning, just sitting there.

 

[jol]

have you tried to short the read channel ?

 

[Jared]

Was actually just looking into trying that. Though, I'm not quite sure how that's gonna get me data access afterward....

 

[jol]

I'm not quite sure how that's gonna get me data access afterward....

maybe by disable the head causing the problem
but first you have to get access to drive & terminal & get out from busy state

 

[Jared]

Managed to get terminal access through shorting the read channel. Was able to manually read module 93, but it doesn't seem to allow it to write back after editing. Head test looks good as far as I can tell. Looks like it can't completely read module 28 from either head 0 or 1 though. So I'm guessing that might be the problem. I wish I'd managed to back it up the couple times it did work for me.... :evil: trying now to read one sector at a time.... though I'm not quite sure what it'll accomplish if I can't get it to write the module back...

 

[jol]

Managed to get terminal access through shorting the read channel.

finally

I wish I'd managed to back it up the couple times it did work for me.... :evil:

for some reason i thought you have a backup
i don't know why is playing in my head, that you do have a backup