[Patton76]

Since a few weeks, i experienced moments of total unresponsiveness of my system. These moments last from a few seconds to a few minutes. In the meantime the harddisk makes a repeating ticking sound.

So, i looked in Console, and i see this message: kernel[0]: disk0s9: I/O error.

What is this, and what's the solution? Techtool reports no bad blocks, and S.M.A.R.T. reports no errors.

I guess it's something with the harddrive, but i'm not sure. Any idea's?

Thanks!

P.S. this is on a Powerbook G4, 1,25Ghz, with 10.4.3

[OreoCookie]

This is most likely a harddrive issue. Make a backup of your personal data and replace it asap!

Smart doesn't have to detect all errors, and the clicking sound is usually the clicking sound of death

BTW, moving to PowerBook … 

[mduell]

What are the actual S.M.A.R.T. parameter values? SMARTReporter will display them for you.

[Patton76]

Originally Posted by mduell

What are the actual S.M.A.R.T. parameter values? SMARTReporter will display them for you.

Which exact parameters do you mean? I downloaded smartreporter, and it says my disk is ok, but i don't see any parameters that i could paste here...

My data is backuped, so, that's not a real problem, but it isn't easy to replace a harddrive in a powerbook.

Would a reformat of the disk help?

I was wondering, why is this a strict powerbook issue, since my required a move to this forum?

[Patton76]

This is what techtool says:

S.M.A.R.T. Self-Checks

   Attribute Normal Worst Threshold Status

1 Read Raw Error Rate
  77   77   62   Okay
2 Through Put Performance
  100   100   40   Okay
3 Spin Up Time
  147   147   33   Okay
4 Start/Stop Count
  97   97   0   Okay
5 Reallocated Sectors
  100   100   5   Okay
7 Seek Error Rate
  100   100   67   Okay
8 Seek Time Performance
  100   100   40   Okay
9 Power On Hours
  88   88   0   Okay
10 Spin Retry Count
  100   100   60   Okay
12 Power Cycle Count
  98   98   0   Okay
191 G-Sense Error Rate
  100   100   0   Okay
192 Power Off Retract Count
  100   100   0   Okay
193 Load/Unload Cycle Count
  80   80   0   Okay
194 Temperature
  166   166   0   Okay
196 Reallocation Event Count
  100   100   0   Okay
197 Current Pending Sector Count
  100   100   0   Okay
198 Off-Line Scan Uncorrectable Sector Count
  100   100   0   Okay
199 Ultra DMA CRC Error Count (Rate)
  200   200   0   Okay

S.M.A.R.T. Self-Checks <Passed>

Tests Completed
Passed

[tooki]

When my PowerBook got the exact same symptoms, Apple replaced the hard disk under warranty. That fixed the problem.

I concur that the hard disk is likely failing.

tooki