WD Free-Fall Sensor in MBP

I'm considering putting the 320GB WD Scorpio Black 2.5", SATA II, 7200 rpm, 16 MB cache WD3200BJKT into a friend's current model MBP 15,4".
A while ago I read somewhere that the drive's built-in free-fall sensor conflicts with the one in the MBP itself. In the meantime I think I've read that the issue has been resolved with a software/firmware upgrade.
Can anyone confirm that? Is it safe to use this HDD in the current generation MBP?
Any advice appreciated.

I did replace the drive with WD3200BJKT as the one without sensor was not available at the moment. I turned off the Apple SMS as you suggested.
However, when I entered the command into Terminal, it displayed two warnings. I did not write it down at the time, but it had something to do with the drive being at zero when the computer was at zero or something like that. It looked like it was an Energy Saver Preference Pane thing as it displayed it twice, as I mentioned, for the time when computer runs on battery and power supply.
At the time I entered the command, the option "Put the hard disk(s) to sleep when possible" was NOT checked in either the Battery or Power Adapter pane in System Preferences.
So after I disabled the SMS and saw the two warnings I checked the "Put the hard disk(s) to sleep when possible" options in System Preferences.
Any thoughts on that?

Similar Messages

ThinkPad X60 Replacement Hard Drive - Will free fall sensor work with Active Protection System?

I plan to replace the OEM hard drive on my ThinkPad X60 with a Western Digital Scorpio Black drive. I found a board posting on Scott Mueller's Upgrading and Repairing Forum site that seems to indicate that APS will work with this drive. Here is my question: Is there any point in purchasing the drive with the free fall sensor option? (This is more expensive than the drive without the sensor.) Will this provide any additional protection above and beyond the Active Protection System. Will the internal free fall sensor in the drive be compatible with APS? In other words, should I buy a Scorpio Black with or without the free fall sensor?
Thanks!

Welcome to the forum!
If I were buying a replacement drive, I'd get one without a sensor, but that's me.
Having seen way too many laptops that have gone through a real "free fall" I'll say that a damaged hard drive in such an event is usually the least of one's problems...
Good luck.
Cheers,
George
In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

Free falling hammer

Hello,
First I am not sure where to put this question, it is a difficult one.
I have a free falling hammer that falls vertically and crushes specimen being tested. The weight of the hammer is about 250 kg and it's speed 10 m/s. The deformation of the specimen is about 0.15 m.
I need to measure the force and the position of the hammer. Force measurement is an easy thing, problem starts when I try to measure hammer's position.
Linear encoder is precise enough, resolution 40 nm, total accuracy 1 micro m.I need accuracy about 0.01mm.
Problem- I cannot measure hammer's position from it's start but I start to measure just before collision. So the hammer hits the liner's encoder scale which starts to vibrate.
The encoders manufacturer specifies that encoder's redhead ridehight variation must be within 0.05mm.The scale's vibration makes measurement impossible.
My idea is to install a shock absorber to decrase scale's acceleration. Shock abrorber that has 0.3m stroke will decrease the acceleration to 333m/s^2. Seems acceptable.
The scale must be install on some kind of linear bearings or linear guideway. The tolerance of this must be smaller than 0.05mm what is difficult to buy.
I want to ask you for help, some ideas how to solve this problem.
Best regards,
przemmo
Attachments:
free falling hammer.png ‏9 KB

Hi Przemmo,
Just to run with the optical idea a little further:
Install a precise scale on the hammer, and a large zoom objective on the camera. A high speed camera on a very large zoom level can capture as the scale (markings) on the falling hammer move, similar to a quadrature encoder. The inspected area (the scale) could be 10mm, in which case you need a 200px vertical resolution to measure 0,05 mm. This is available. Make the markings little triangles, use visual inspection, and you can measure 10m/s at 0,05mm accuracy at 1000 FPS. Add a unique markings (ie a serial number for each triangle) and you can measure the 0,05mm precise analog position at any FPS you need.
All you need is a very acurate scale on the hammer, and a very stable fixture for the camera.
Best Regards,
ST
Best Regards,
T Simon
National Instruments
Applications Engineer
Certified LabVIEW Developer - Certified TestStand Architect

Need to free up space on MBP

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I want to backup to a Flash drive (64G) either:
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2) back up one of them.
After doing this, how would I access the backed up data?
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Steve

Disk Space - Free Up
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Some DVDs will not play in my Fall '10 i5 MBP

Hi everybody,
This morning I tried playing "Fantastic Mr. Fox" on my less-than-a-year-old Macbook Pro. I put the DVD in superdrive, and instead of hearing the familiar "whirring" or "winding up noise" followed by opening the DVD player app, I just hear a series of buzzes for about five-to-ten seconds before the disc is forcibly ejected. Thinking there might've been a problem with the Superdrive I tried Batman Forever, which loaded up normally. I then tried putting in Horton Hears a Who, which also buzzed and ejected. In total I've tried about ten discs, and three of them haven't worked. The backs of each disc are clean, and scratch-free and were all purchased from either Walmart or Target. They work on other DVD players around the house (PS3, Xbox 360, PC DVD player)
Does this particular superdrive have problems with certain studios' manufacturers?

Hi
Has it worked before ?
Is it just some DVDs that do not play ?
Do You burn CD/DVDs ? If so can it be so that You burned several in a row (>3 at same time) ?
I use a Cleaning DVD (with brushes - NO Liquid) from time to time. Do You ?
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Free Mountain Lion for mbp september 2012?

My son bought a macbook pro in september 2012. It came with lion. He realized he should have Mountain Lion and contacted Apple but apparently the program to get this installed for free has been cancelled in march 2013. He never was notified of this. Is there any way around this? Are there more people with this experience? I think this is very bad customer support of Apple!

Your son will just have to pay for the Mountain Lion upgrade. The ML "Up-to-date" program was extended for quite some time to those who bought new Macs prior to a certain date and your son should have taken advantage of that program while it was extant. It's now gone and if he wants Mountain Lion, he'll have to pay for it.
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Clinton

How to simulate gravity acceleration animation (free fall) in After Effects.

Hello,
I want to make men falling from the sky. That meens that they don't have to fall with the same speed but they have to be accelerating in order to simulate gravity drop. They have to accelerate by "G" (9,81m/s)2.
How can I achieve this accelerated animation by just manipulating the keyframes?
Or, what is a very simple expression which includes G acceleration (9,81)?
I don't like expressions, so it has to be an extremely short, simple and very effective one.
Thanks

You could also do this by simply manipulating the curve in the graph editor. Select separate dimensions and animate y as shown:
Since there are no feet and inches in AE being absolutely accurate to the real world is purely subjective. In this case I've just created an approximately parabolic curve by stretching out the handle on the first y keyframe speed graph and then moving the second handle next to the second keyframe and positioning it to the top of the curve.
If your object is going to hit the ground then you'll also need some kind of bounce or deformation. Again, this is completely subjective but if you type in realistic bounce expression or bounce expression in the Search After Effects Help field at the top right corner of AE you'll be directed to this series of great expressions by Dan Ebberts.
I would strongly suggest that you try out these expressions and then save each of them to an animation preset so you can apply them to any layer with a single click. It will save you a bunch of time.

Can you adjust the sensitivity for motion sensor for MBP 13"

I recently notice the clicking noise when I move the laptop, usually sits on my lap. I have been reading this and people talks about disabling it via the 'sudo pmset' command to set 'sms' to 0.
I want to know if there is a parameter somewhere just to change the sensitivity instad of turning this off completely.

I can't see any obvious way to do it using the pmset command, J. , but third party applications certainly do change it for various other purposes, mostly entertaining (see skipchecker for example. You would think, accordingly, that there must be a means of doing so for the HD head parking routines.
Amit Singh has an interesting piece on its use .
I'll let you know if I can find anything else that might help.
Cheers
Rod

Hard drive upgrade on 13" MBP sudden motion sensor compatibility

Hello,
I'm planning on upgrading the hard drive in my 13" MBP (aluminium unibody) and I've read a lot of posts regarding the sudden motion sensor conflicts with OS X 10.6.2. I'd like to know if the Western Digital 500GB Scorpio Blue here (http://www.dabs.com/products/western-digital-500gb-scorpio-blue-5400rpm-sata-300 -8mb-58P6.html) would suffer from the conflict (I'm not sure if "Shock Guard" = sudden motion sensor). I don't know if its a simple yes/no or whether its drive / mac specific.
If it would be a problem does anyone have a suggestion for a guaranteed compatible 500Gb hard drive (5400 rpm is fine)?
Any thoughts are much appreciated, thanks for your help!

Western Digital Lists their drive features as:
* IntelliSeek™ - IntelliSeek technology calculates optimum seek speeds to lower power consumption, noise and vibration.
* SecurePark™ - WD's SecurePark technology parks the recording heads off the disk surface during spin up, spin down and when the drive is off. This ensures the recording head never touches the disk surface resulting in improved long term reliability due to less head wear, and improved shock tolerance.
* ShockGuard™ - WD's ShockGuard technology protects the drive mechanics and platter surfaces from shocks during shipping and handling and in daily operation.
* Free-fall Sensor - As an added layer of protection, if the drive (or the system it's in) is dropped while in use, WD's free-fall sensor detects that the drive is falling and, in less than 200 milliseconds, parks the head off the disks to help prevent damage and data loss.
* WhisperDrive™ - WD's exclusive WhisperDrive technology combines state-of-the-art seeking algorithms that result in one of the quietest 2.5-inch drives on the market.
The Free Fall Sensor is the equivalent of the Sudden Motion Sensor. Looking at the specs for the drive you linked to... they list the following features:
Shock Guard, WhisperDrive, SecurePark
As they do not list Free Fall Sensor, I'm guessing this model does not have one so it should not conflict with the internal Sudden Motion Sensor in your MacBook.

Options for hard disk upgrade on my MBP 15" (late 2007 - Santa Rosa)

I suspect this is a common question here in the discussions forum, judging by the similar questions posed by other members.
I am however, half-way into my research on hard disk options for that matter and would like to ask some specific questions in order to ensure that my upgrade is not problematic (I have been quite happy with my MBP so far :-))
The model I have is the A1226 (Intel Core Duo, 2.2Ghz, 4GBs. This currently has the 111.79GB Fujitsu MHW2120BH hard disk, which is almost full now; hence, the need for an upgrade.
I quite fancy the WD Scorpio Blacks, particularly the 500GB ones, even though the 320GB ones will also do to a lesser extent. My questions on this brand/type are:
(1) Will it have an impact on the heat generated inside the Macbook (vs. my current situation)?
(2) Will it have an impact in the battery consumption (vs. my current situation)?
(3) Will there be an issue with the SATA speed? My MBP supports 1.5GB/s while this drive operates at 3GB/s.
(4) If I opt for the respective model with the free fall sensor, will this function work with my MB? (NB: Not sure if relevant, but the System Profiler reports: Suddem Motion Sensor: State = Enabled)
My aim is to clean up my current disc, upgrade it to the new bigger one and then re-install Mac OS X Leopard, upgrade to Snow Leopard and then re-install all apps. All files are backed up anyway with TimeMachine, so no issue there. If you can think of any potential issue with the upgrade and what I intend to do further after, please share it.
The machine is out of warranty - but that doesn't mean that I want to cause damage here...
Thanks.

Nikos Lazaridis wrote:
(5) What other safe options are there for upgrade drives with a 500GB capacity?
For loading/unloading heads, I'm not sure one model/brand has been found to be better than another.
Can I avoid this problem if I get the Scorpio Black 500GB w/o the free fall sensor? (Model: WD5000BEKT on http://www.wdc.com/en/products/products.asp?driveid=854).
The SMS conflict, yes.
In such a case, will Apple's Sudden Motion Sensor work?
Yes.
Or to paraphrase, can SMS park the heads of a WD hard disk w/o the free fall sensor?
Yes, that is what it was developed for. Since that time, more and more HD manufacturers have incorporated it into the HD itself. There are two schools of thought on this: 1. The "SMS" built in to a HD is more properly "mated" to the HD mechanism itself, so could save a nanosecond or two engaging. 2. In the nanoseconds it takes to engage, a nanosecond here or there is not going to matter. Personally, I believe the latter. There is no need for an "SMS" enabled HD in an SMS enabled Mac. I'm sure some others believe differently.
(NB: Interesting that the issues with SMS and the WD Scorpio have been documented in Wikipedia: http://en.wikipedia.org/wiki/SuddenMotionSensor).
Ah, good old wiki. I hadn't seen that before. Thanks for sharing.
No mention there of whether it is applicable to the drives with the free fall sensor or the ones w/o it (or even both).
It actually does state it is in reference to the "aftermarket hard drives already equipped with anti-shock features." That writeup is dated however, as I believe there are more issues reported with Seagate these days.
Message was edited by: tjk

Sudden Motion Sensor not working after upgrade to WD5000BEKT HDD

Hi everyone, I just upgraded the hard drive on my Macbook Pro (2010) and I am very pleased with the performance of this 7200rpm drive, I have seen reads around 105MB/s and a pretty good boot time at 23s. But I used to be able to hear the hard drive stop when I moved the computer around before due to the Sudden Motion Sensor technology and since I have the new hard drive in it doesn't seem to work anymore. I have tried switching SMS off and on and it didn't change anything, also the drive is a Western Digital Scorpio Black without Free Fall sensor (I took that version on purpose so it wouldn't conflict with the SMS). Do you have any ideas on how to make it work again? Because I really like this feature on my Mac (I have dropped a laptop before so just in case it happens again). Thanks a lot for your help.
Scott

For future reference, here are a couple of kb articles on the sudden motion sensor:
http://support.apple.com/kb/HT1935
http://support.apple.com/kb/HT1934
As has been said, Apple's Sudden Motion Sensor is not actually built into the hard drive. In fact, some hard drives with their own version of a sudden motion sensor like Seagate's G-Force Protection actually will set up a conflict with Apple's Sudden Motion Sensor.
I installed the same WD in my Mac as you did, and I hope you enjoy it as much as I have been enjoying mine.

Sudden Motion Sensor and WD Scorpio drives

I'm researching the 13-inch MacBook pro. I stumbled on this thread: http://discussions.apple.com/thread.jspa?threadID=683913 which says that the Sudden Motion Sensor in Apple portables have issues with kernel panics when you use Western Digital's Scorpio line of hard drives. I was wondering:
- Is there a way you can disable SMS in System Preferences?
- If I get WD's Scorpio drive without their implementation of SMS ("free-fall sensor"), will Apple's SMS take over without KPs? Or do I have to use a stock drive?
Thanks!

http://support.apple.com/kb/HT1934
Also, the application Cocktail can disable SMS by disabling it and without venturing into the Terminal.
Bryan

MacBook Pro 13" Hard Drive and other questions

Hi there,
I've just purchased a 13" MBP which I absolutely love but have a few questions about upgrading it. I want to swap out the hard drive for a larger capacity but just want to make sure I purchase one that will fit.
I'll number the questions for ease of answering.
1. Will this hard drive be correct? I know it's a 2.5" SATA but I didn't know if the dimensions are ok for the 13" MBP.
http://www.amazon.co.uk/WD-Scorpio-Black-WD3200BJKT-internal/dp/B001FBJJQ4
2. Will the difference between a 7200rpm 16MB cache drive and a 5400rpm 8mb cache drive be noticeable? I can get a 500gb slower speed drive for the same price and while the capacity increase would be useful, I would prefer a faster drive if it's noticeable.
Many thanks

That article I believe to be incorrect! The author never mentions which Scorpio drive....Blue or Black. The Blue does not contain a free fall sensor option as the Black is available with our without free fall sensor. The free fall sensor will interfere with the Sudden Motion Sensor (SMS) built into the Mac. SMS can be disabled but my experience first hand with the Scorpio Black in my MBP 13 was not good even after disabling the SMS and merely using the free fall sensor in the Black. If you want a 7200 RPM drive and you like West Dig get the Black without the free fall sensor. You will be much happier. I run the Black in several Windows Laptops and it streams fast then the 7200.4 which I also have in a windows laptop and the scorpio black performed better and more stable! I just dont think I personal would not use it on the MBP 13...I took mine out for it was problematic!! If you want a 500 GB go with the Fujitsu or the Hitachi...even the the Western Dig Scorpio Blue with does not have a free fall sensor. The author of that article mentioned ShockGuard that is not a Free Fall sensor and only engages durring spin up or down as well as parks when it is off. This does not sense a fall like the SMS or a built in free fall sensor. Many MBP unibody owner have used the Blue and it has been hugely successful!!! My experience which is very extensive with Seagate as of late has not been favorable. I do not like the latest generation of drives they are producing we are seeing extensive failures (higher % compared to other OEMs). Stick with those three.
If you want battery life, the Fujitsu or Hitachi are very good choices Fujitsu being a little better
For speed the WD Blue is best on synthetic tests but it is a little power hungry. I am sticking with the Fujitsu in real world test it seemed to do better than the others...H2Benchw it wasnt as good. PCmark it did very well. The Gaming, Video and other test it seemed to do well on but not as good in the h2Benchw.
http://www.tomshardware.com/reviews/mobile-hdd-notebook,2305.html
Great info!!!

Macbook Pro Does Not Start Up - Stuck at "No Entry" Sign

Hello,
I've been dealing with this hours, so at last I decided to get help from the community.
Let me explain the issue first.
I have checked Software Update, and there was two updates. First one was Java and the other one was EFI Update 2.7. I don't remember the Java update version. After I applied the update, the MBP rebooted itself as it should do; bu the problem occured at that reboot. OSX tried to start up three times, like as it was failing to install the updates after reboot. And at the fourth time, after a few minutes the Apple logo turned into a "No Entry Sign". And it stuck like that. Now, the MBP cannot boot normally, I can only run it on safe mode.
I have reset PRAM.
As far as I read about the issue over the boards, the problem occurs to be an HDD problem. Yet I can run the OSX in safe mode, which bugs me. So I downloaded SMART Utility to check the HDD. It says there is 1 Pending Bad Sector, and 1 Removed Bad Sector.
What do I do now, any solutions you can offer?
This is the log export from SMART Utility if you wish to check it.
location: /dev/disk0
partition count: 1
partitions: Caprica HQ,
SMART Support: Supported
Last SMART Error: *not set*
Model Family: Seagate Momentus 5400.6
Model: ST9500325ASG
Serial Number: 5VELJHP6
Firmware Version: 0009APM1
Capacity: 500 GB
ATA Version: 8
ATA Standard: ATA-8-ACS revision 4
Health: Failing
Overall Health: PASSED
Offline Data Status: 0
Self Test Status: 0
Offline Data Collection Time: 0
Data Collection Capabilities: 73
SMART Capabilities: 3
Error Logging Capabilities: 1
Short Self Test Time: 1
Long Self Test Time: 139
Conveyance Self Test Time: 2
Attribute Log Revision: 10
Attribute Count: 22
Attributes:
ID#   ATTRIBUTE NAME                         FLAG       VALUE   WORST   THRESH TYPE         UPDATED     FAILED    RAW VALUE
1     Raw Read Error Rate                    0x000E     117     099     006     Old age      Always      Never     141585185
3     Spin Up Time                           0x0003     100     100     000     Pre-fail     Always      Never     0
4     Start/Stop Count                       0x0032     100     100     020     Old age      Always      Never     18
5     Reallocated Sector Count               0x0033     100     100     036     Pre-fail     Always      Never     0
7     Seek Error Rate                        0x000F     100     253     030     Pre-fail     Always      Never     595148
9     Power On Hours                         0x0032     100     100     000     Old age      Always      Never     622
10    Spin Retry Count                       0x0013     100     100     097     Pre-fail     Always      Never     0
12    Power Cycle Count                      0x0032     100     100     020     Old age      Always      Never     366
184   End-to-End Errors                      0x0032     100     100     099     Old age      Always      Never     0
187   Reported Uncorrectable Errors          0x0032     090     090     000     Old age      Always      Never     10
188   Command Timeout                        0x0032     100     100     000     Old age      Always      Never     0
189   High Fly Writes                        0x003A     100     100     000     Old age      Always      Never     0
190   Airflow Temperature Celsius            0x0022     071     061     045     Old age      Always      Never     29
191   G-Sense Error Rate                     0x0032     100     100     000     Old age      Always      Never     99
192   Power Off Retract Count                0x0032     100     100     000     Old age      Always      Never     85
193   Load Cycle Count                       0x0032     083     083     000     Old age      Always      Never     34546
194   Temperature Celsius                    0x0022     029     040     000     Old age      Always      Never     29
195   Hardware ECC Recovered                 0x001A     051     043     000     Old age      Always      Never     141585185
197   Current Pending Sector Count           0x0012     100     100     000     Old age      Always      Never     1
198   Offline Uncorrectable Sector Count     0x0010     100     100     000     Old age      Offline     Never     1
199   UDMA CRC Error Count                   0x003E     200     200     000     Old age      Always      Never     0
254   Free Fall Sensor                       0x0032     001     001     000     Old age      Always      Never     63
Error Log Version: 1
Error Count: 9
Error Log:
Error 9 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
25 00 00 FF FF FF 4F 00      01:42:05.257 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:42:03.023 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:42:00.832 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:58.621 READ DMA EXT
2F 00 01 10 00 00 00 00      01:41:58.620 READ LOG EXT
Error 8 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
25 00 00 FF FF FF 4F 00      01:42:03.023 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:42:00.832 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:58.621 READ DMA EXT
2F 00 01 10 00 00 00 00      01:41:58.620 READ LOG EXT
60 00 00 FF FF FF 4F 00      01:41:56.397 READ FPDMA QUEUED
Error 7 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
25 00 00 FF FF FF 4F 00      01:41:58.621 READ DMA EXT
2F 00 01 10 00 00 00 00      01:41:58.620 READ LOG EXT
60 00 00 FF FF FF 4F 00      01:41:56.397 READ FPDMA QUEUED
60 00 38 68 BE 3A 40 00      01:41:56.375 READ FPDMA QUEUED
60 00 10 08 0E 27 40 00      01:41:56.371 READ FPDMA QUEUED
Error 6 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
60 00 00 FF FF FF 4F 00      01:41:56.397 READ FPDMA QUEUED
60 00 38 68 BE 3A 40 00      01:41:56.375 READ FPDMA QUEUED
60 00 10 08 0E 27 40 00      01:41:56.371 READ FPDMA QUEUED
60 00 08 FF FF FF 4F 00      01:41:56.319 READ FPDMA QUEUED
60 00 10 E8 F1 06 40 00      01:41:56.318 READ FPDMA QUEUED
Error 5 occured at disk power-on lifetime: 469 hours
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 00 FF FF FF 0F
Error: Uncorrectable Error
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC   Powered_Up_Time Command/Feature_Name
25 00 00 FF FF FF 4F 00      01:41:53.979 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:51.778 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:49.575 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:49.550 READ DMA EXT
25 00 00 FF FF FF 4F 00      01:41:49.477 READ DMA EXT
Self Test Log Revision: 1
Self Test Log Count: 0
Self Test Log:
No self tests logged.

As I'm sure you are already aware, that HDD has failed to the point it cannot find a bootable volume.
If you have a backup, no worries.
If you do not have a backup, you could try to reinstall the operating system and get the disk to a state in which it will at least mount. Then, copy whatever information remains intact to another disk. I would be inclined to replace the drive now, install the failed one in an external enclosure, and attempt to extract whatever information you need from it.

What is Max HDD size for MacBook Pro 15" bought in 2006-07

Hi
I bought a MacBook Pro 15" about 3.5 - 4 yrs ago. The model is A1211.
It came with 120GB HDD, 2GB RAM.
What is the maximum HDD size that this will support? The Apple store employee says, it will support only upto 160 GB. But, I am skeptical it would be that low.
So, was wondering if anybody knows the max size, and also, which HDD would be best. I want at least 320 GB.

You can get a 750 GB drive that is 9.5mm high. As far as I know, the 1 TB drives are all still 12.5 mm high, although that could change at any time.
The fastest 750 GB drive I know of is this one:
http://www.seagate.com/www/en-us/products/laptops/laptop-hard-drives/
It is 7200 RPM. At 5400 RPM, there are many other choices. You might want to shop at Newegg, which often has specials on drives, as does Tiger Direct. Newegg also has reviews of individual drives you can look at.
Personally, I like Western Digital drives, and put the 500 GB Scorpio Black drive in my 2007 MBP, where it has performed without issue. The largest drive that originally shipped with my MBP was a 4200RPM 250 GB drive, the very biggest one you could order in a MBP back then.
Any 2.5 inch SATA drive should work just fine. The only one I would avoid is WD's 640 GB drive because a number of people have has issues with it in their Macs.
You might shop around on line a bit, and if you are torn between two or more drives, post back with what they are and ask for opinions. Everybody has favorite drives, so it may not be possible to get anything other than a bunch of opinions.
One other thing to watch out for. Some drives are sold with or without some form of free fall sensor. Apple has its own built in sensor called the Sudden Motion Sensor. In some machines and drives, there seems to be a conflict between the drive's sensor and Apple's SMS. If that happens, you would need to disable Apple's sensor. Usually it's easier just to select the drive without a built-in sensor and let Apple's SMS work as its designed to do. In the Seagate drive I linked, it's called "G-Force", but would have a different name in a different brand.
Incidentally, you can up your RAM to 3 GB if you like.
Good luck!

WD Free-Fall Sensor in MBP

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