09-13-2011 01:54 PM
Firmware version SD28 for the Momentus XT is now available.
Please visit this page for all necessary information.
09-21-2011 10:42 AM
Neither the Windows version nor the ISO version will recognize my drive. I've had the drive on both the 0 port and the 2 port.
The BIOS sees the drive with no problem...no matter what port I have it on.
Any suggestions? Bad programming?
09-21-2011 07:56 PM
Okay, this is ridiculous.
Why is it totally impossible to find a "fix list" for this or any other firmware update for this drive?
And yes, I've looked:
It's not available anywhere on the download page for SD28 (or any other version)
It's not in the support area of the Seagate website
It's not inside the ISO file or EXE installer
It's not in the current service manual (PDF) for the drive
It's not on any links via the HD's product page
I can't find it by searching via Google - all searches result in Seagate forums, and none of the forums have any fix list (including this one)
Even HP's web site, which hosts Seagate firmware updates, provides a fix list with the firmware update.
Seagate states "If you are troubleshooting a system or operating system problem, you should not consider firmware updates until after exploring more typical troubleshooting steps like file system error checking and anti-virus scanning."
Wouldn't it help to provide a cumulative list of bug fixes, to at least allow people to rule out (or in) firmware as a fix in the first place?
09-24-2011 04:45 PM
10-12-2011 01:50 AM
This firmware did not solve the auto spin down "feature" problem to me. After turning it off with crystal disk, the feature is back there after a reboot.
This leads to choppy video playback and pauses in everyday use.
I tested the drive with hdparm -t and it brings this:
Timing buffered disk reads: 76 MB in 3.02 seconds = 25.14 MB/sec
and it's often even worse: around 2 MB in 2.5 secs which means read time in kilobytes.
I have now unmounted the drive from my laptop and it now serves as a backup drive. Back to my sluggish WD Scorpio.
10-12-2011 03:04 AM
I still have firmware SD23, the orginal firmware my drive came with, on my Windows 7 64bit system. I've not had any problems, so far, that I've noticed.
Is it worth, or recommended, that I upgrade to SD28? Will it increase performance, make a difference to my life? I want to install the firmware (newer is better right?), but am unsure if I need to.
Any advice is appreciated.
10-12-2011 04:02 AM
Since I was aware of the problems before I bought the drive, the first thing I did was upgrade to SD25 since that was recommended by many people who reviewed the drive.
Unfortunately I got frequent end-to-end errors and even 1 broken sector which the seagate tools was able to repair.
Since I kept having end-to-end errors in my SMART data I upgraded to SD26, which actually solved that problem.
I installed the free acronis drive monitor to monitor the drives health: http://www.acronis.com/homecomputing/products/driv
I noticed that SD26 wasn't that great at performance.
Yesterday I've upgraded to SD28 and I do notice a performance increase (I hear the drive activly cache data after a major IO operation for example).
I ran all the tests in the seagate tools software just to make sure nothing was wrong (on SD25 an instant end-to-end error was counted in the SMART data), and I didn't find any problems.
Also I notice that the drive is not constantly trying to access something every 10 seconds (good stuff).
So yeah, for now I'm very very positive about SD28
10-12-2011 05:39 AM
sincerely hope that you don't feel negative so fast like me.
How do you mean?
Don't you have a good experience so far?
I actually also wonder what the release notes are
10-15-2011 03:44 AM
After I found out my windows lagging and pausing due to momentum XT, I downgrade to conventional 7200RPM hdd. Now running smooth, though startup not that fast compare to Momentum XT but once loaded into windows, everything running fine.
10-20-2011 07:33 AM - last edited on 10-20-2011 08:37 AM by AskTheLeaf
Here it reboots but doesn't do anything, I just goes straight into windows again.
Model: ST95005620AS, Serial: [ Edited to comply with forum guidelines ], Firmware: SD26
Machine is a MacBook Pro 2011 17inch with bootcamp....in theory is not any different from any PC.
10-23-2011 12:24 PM
10-24-2011 06:17 AM
Are you really sure SD28 is fit for use? I have no problem using firmware 23-25 and once I upgraded to SD28 my drive starting to slow down, auto-reboot during sleep and soon the drive corrupted and fail seatool basic test.
Are you really sure Seagate?
10-25-2011 11:54 AM
No change: Upgraded firmware to SD28 and the unit still fails to spin-down, instead exhibiting an audible "chirp" whenever the OS attempts to spin-down the drive, which is about every few minutes or so:
10-26-2011 07:19 AM
I have same trouble since SD28, slooooooooow boot now with W7 (25'' with SD25, 50'' with SD28)... and some strange sounds like "clic clic" sometimes...
This is a SHAME I never had this with SD25...
Any way to downgrade SAFELY to SD25 ? the iso process scare me...
f.... seagate people whats wrong with you ?
10-26-2011 11:14 AM - edited 10-26-2011 11:48 AM
Anyone else having problem with the SD28 "damaging" in any way the drive ? I had SD24 and updated to SD28 and now I don't know if this was a good ideea... Maybe SD26 was better after all (using WinXP SP3 on a Toshiba laptop)
My SD28 (updated from SD24, factory default was SD23) flashed without any problems, with the ISO. I didn't need any Force Flash method... The SD28 behaves very well, until now I don't see any issues, no lags, no hiccups, no beeping/chirping. The drive parks the heads after 25 seconds of inactivity (measured myself). No spindowns, APM is set to 128 by default.
SD28 is about 2 times faster in terms of boot time than the Scorpio Black WD5000BEKT (1 min vs 2 minutes)
11-01-2011 09:40 AM
A little background information, I own a MacBook Pro 13'' with an Intel Core 2 Duo. I've had this machine for about a year and a half now. I upgraded to the MomentusXT 500GB about a year ago, and noticed that my battery life reduced some. I didn't really care to much since I'm getting better performance on the HD side. But I updated recently (last week) from SD25 to SD28 and noticed that my battery life cut again. And now receive a "service battery" warning. I wanted to make sure it wasn't my battery so I contacted Apple Support and made a Genus appointment. So I put my original HD back in after a couple getting to the Apple Genus bar the "service battery" warning went away. Which kind of made me look crazy :-/ . So I got home but the Momentus back in and now am receiving the warning again.
Has anyone else seen this?!?!?
11-02-2011 02:26 AM
I don't own a Macbook, but I also noticed a drop in battery life after upgrading to SD28;(Acer 1825ptz)
There's some info in the FAQ about the battery life but no real solution: (see faq28)
I'm considering downgrading to SD25 (my drive shipped with SD26, but that one is not to be found on the official Seagate DL)
11-02-2011 04:17 AM
Take a look here and tell us your experiences with SD25 (especially file corruption issues...)
11-02-2011 05:20 AM
I wonder, how you guys are measuring the speed between firmwares?, I don't notice anything bad on mine at SD28.
Bought mine around three months ago, I believe it was at SD26 by default, and I haven't experience any issue so far.
11-02-2011 06:17 AM
Yeah... that's a really good question. We actually measure the time needed for Windows to boot... after a few restarts (for the SSD to learn the needed data). That's about it...
11-04-2011 03:12 AM
I've been running Soluto since it was introduced, so it gives me a reasonable benchmark from boot to boot to see how things perform.
With SD25 I was booting to the OS and all auto apps and services in under a minute.
With SD26 that went up to around the 1 minute 50 mark.
With SD28, the boot is around 1 minute 20.
11-04-2011 03:58 AM
This is also what I see with my drive. SD25 was almost as SD28 for me, though. However, I only rebooted like 3 times with SD25, did the tests and saw the corruption, so I quickly reverted back to SD28.
You are right about SD26, it is THAT slow. It behaves just as a simple mechanical drive, no SSD workings there....
11-20-2011 03:53 AM - edited 11-20-2011 03:53 AM
To the poster with the Service Battery issue...
When you swap HDDs, you have to unplug the Apple internal battery. Doing so resets the Power Management Unit. That is why the Service Battery temporarily went away. 99.999% odds that was the cause, and not the HDD.
Resetting your PMU is the first thing the Genius Bar would do anyways, so you basically just did the diagnostic step for them. If Service Battery comes back again, then it's time to evaluate replacement of the battery.
11-25-2011 10:27 AM
I've been testing the Momentus XT 500 GB drive for a while now, on SD28. All I can say is that it isn't worth the money.
For day-to-day usage the drive is almost not different from my WD5000BEKT drive.
What bothers me is that the drive doesn't learn properly (on SD28, at least...). It forgets very quickly often used files/programs. I don't know how the adaptative memory is tweaked on SD28, but it seems that after only 1 read, the data is copied into the SSD (one can hear that the drive works after a random read, copying into SSD). The problem is that after watching a movie or reading a few large files, the "learned" data is completely deleted from the SSD. I strongly believe that SD28 is tweaked to copy only after 1 (max 2) reads of the same LBAs.
Contrary, SD25 seemed to have another learning curve. It took 3-4 reads of the same data to get copied in the SSD afterwards.
What do you think people ? Anybody seen the same behavior. It is a little hard to explain... but I'm sure that I'm not the only one seeing poor SSD caching behavior on SD28...
11-30-2011 04:26 AM
Bit of history : over a year ago I bought a Momentus 500 XT which came with SD23, replacing a 'stock' 80GB disk because I needed the extra space and found the hybrid concept 'promising'. To put it mildly : I was VERY happy about this upgrade. Compared to other people at the office using the same hardware (but the 'stock' disk) my laptop was suddenly running circles around them. (booting was faster, outlook launched much faster, Visual Studio was much faster etc...).
As time went by I upgraded the firmware to SD25 but never really noticed much differences.
Then, after months of no problems at all, my laptop started crashing every once in a while. It would BSOD on me for 'random' reasons. (IRQ errors, gfx driver issues, sound driver issues, ram issues, you name it... )
In the end I had at least one BSOD per week. Internal IT was "kind enough" to provide me with another (identical) laptop, so we simply swapped the disk from one frame to the other but this did not fix the issue. It actually kind of proved the problem was with the disk. That said, I'm still not sure if this can be blamed on the disk itself, or on the OS. Fact is, I was having a problem. Anyway, since my laptop was bound to be replaced with a more modern one 'in a few months', I simply 'got used to it' and made sure to save often so the inevitable BSOD would not cost me too much work being lost.
Starting to 'doubt' my HDD by now, I ran CrystalDisk to read the SMART data, and what do you know : I had an unrecoverable sector ! I then tried SeaTools and it marked the drive for RMA. Off course I could not simply send the drive back to Seagate and wait for a replacement, so assuming this was a 'bad luck' hardware failure, I decided to buy a new disk (Momentus 500 XT again) and simply imaged the old disk to the new disk. The new one would take over from the old one, the old one would get replaced and afterwards I surely would find another use for it somewhere.
The new disk came with SD26 and I was *MAJORLY* disappointed about the performance of the new drive. Sure, it still was faster than the 80GB drive of the past, but it felt a lot slower than what the "old" Momentus once did. Around that time I got upgraded to a newer laptop which now came with a 320GB WD Black. That 320 Gb was fine (size & speed-wise) but Since I had the Momentus drive around anyway, I imaged the 320Gb to the 500Gb and although the the extra space was useful, it made zero effect on performance at all =( (**)
Last week I came to the forums again to see SD28 is out and all the discussion going on to which I'd like to add that :
So I did the following test (SD28, Win7 Enterprise 64bit)
if the cache would indeed be used to store the 9Gb of data files, boot time should increase drastically again for reboot nbr 3.
Boot times gathered from the Event Log (see : http://windows7themes.net/speed-up-windows-7-boot-
So the idea that SD28 swaps out the cache for something else 'right away' seems to be false, although I too have feeling that SD25 seemed to be 'smarter' at this when 'just working' with the laptop. Additionally, yes, after the copy process of the 9Gb files to the external disk had finished, there still was A LOT of hard-disk activity I could not attribute to anything the OS did, strange.
Again, all of this is VERY subjective.
PS: Out of curiosity I tried to "No GUI" boot option in msconfig.exe and then got this : 80771ms, which is a remarkable difference again IMHO and probably can be attributed to both the Flash-cache and the option (it's the 5th time in the past hour I've rebooted so maybe the boot-files are being cached more & more after all)
Conclusion : so far I'm happy with SD28 but I still have a grudge about Seagate shipping the SD26 without proper notification. I too prefer stability (= no corruption) over speed, but selling me a drive that is only hybrid in theory is well, fraud.
11-30-2011 06:39 AM
Thanks a lot for your description, I see mostly the same behavior as you do.
I'd add something interesting.
When you have read 9 GB of files from the MXT... I wonder how much of that data was actually pulled in the SSD. I guess the drive makes a list of the files to be cached while reading the data and starts to pull them to the SSD only after the read procedure finished. You probably saw this. As soon as the read process finishes, the HDD LED stops, but one can hear the drive working at max afterwards, for a while. It caches a list of LBAs into the SSD.
Now, I wonder how big that list can be made. I mean, what if I read 300 GB of small files from the drive, which of those will actually be cached into the SSD ? How long can that "to-be-cached" list grow to ?
I'm asking this, since I've checked something. In HDTune, if one does a Quick Scan for the whole drive, only a part of those LBAs are cached. When a second Quick Scan is performed (after waiting let's say a minute, for the drive to be able to finish the caching), only a part of the reading will actually be faster... Try it out and see for yourself. It's, indeed, very subjective.
I wonder how did the SD25 handle this case. I won't go back to SD25 just to damage my files with some nice corruption/BSOD, but I was still wondering....
It's very interesting how the drive forgets the cached data with SD28. It needs to relearn every other day... that's why I said that it behaves almost as a normal mechanical drive... in terms of performance. SD25 was better....
12-17-2011 06:14 AM
I believe that the lags/stuttering issues (maybe also connected to the End-to-End errors in SMART, not entirely sure about this) are directly caused by the SD25 firmware. It seems that the problems occur ONLY on drives which, at a given point had the SD25 firmware (even if, afterward one updated further to SD28, for example).
SD25 messes up drives really badly. We've already shown that it corrupts files under all operating systems. But I strongly believe that it also messes with the SSD and/or with some very important cache-controlling firmware components.
I can tell you that I have never seen the lags/stutterings/freezes on the following 2 drives:
1. originally SD23, updated to SD24, then to SD28 directly. Perfect drive. No corruption
The second drive:
2. originally SD22, never updated to anything else. It works very well, no problems. No file corruption.
It seems that the file corruption was introduced in SD24 (I'm not entirely sure about this). Can anyone confirm ? However, SD25 clearly shows serious problems with corruption.
I've seen the lags/freezes only on drives which, at a given moment in time, had SD25 on it (especially for a longer amount of time). Those drives sometimes showed the End-to-End errors in SMART.
01-24-2012 04:21 PM
Here is how I upgraded the firmware of my Momentus XT drive with a bootable USB device instead of using a bootable CD. This is particularly useful when the firmware update utility does not run within Windows, your netbook does not have a CD/DVD drive build in and you also don't have an external USB CD/DVD drive.
Configure your BIOS to be able to boot from USB.
Create a bootable USB device (with Rufus for example, format to FAT32 and include FreeDOS support).
Download the bootable CD ISO image for the SD28 firmware (here for example).
Extract the contents of the MomentusXT-ALL-SD28.iso file (with WinImage for example).
Extract the contents of the AN-SD28.ima file (also with WinImage for example).
Copy the contents extracted from the AN-SD28.ima file to the bootable USB drive except for the COMMAND.COM file.
Boot from the USB device and run the FDAUTO.BAT file.
Now follow normal procedures just like the bootable CD ISO image.