I have wanted to upgrade the 500 GB SSHD hybrid drive in my Dell Latitude E6440 since I purchased it but i just wasn’t prepared to spend the asking dollars for a new SSD. The only adequate solution I determined reasonable was to go with a used SSD and just accept the risk that goes with used.
After much searching and bidding, I purchased a Micron M500 with 960GB SSD which ends up being 894GiB of storage. When it comes to SSDs this is NOT, by any stretch, considered top of the line. Here are the specs that many seem to be fixated.
- Sequential 128KB READ: Up to 500 MB/s
- Sequential 128KB WRITE: Up to 400 MB/s
- Random 4KB READ: Up to 80,000 IOPS
- Random 4KB WRITE: Up to 80,000 IOPS
- READ/WRITE latency: 5ms/25ms (MAX)
Not the most performant drive but certainly much faster than the SSHD that I was using. If you are interested, here are the full specifications from Micron on this line of drives.
Since I already put the root and swap file system on a 128 GB mSATA SSD with very positive results, I was encouraged about how this upgrade was going to go. I could expect better performance with less power usage.
In preparation for upgrading, I did what any reasonably prudent, Linux using, data conscious, user would do. I backed up the contents of my home directory, well, another snapshot using Back In Time.
Performing the Modification
The great thing about every Dell Latitude I have ever owned is the ease of serviceability of the machines. No crazy tools are needed or long list of instructions to perform a simple modification. Just a small Phillips screw driver.
Two screws and the drive can be removed from it’s bay. The drive is held in place by these isolation rubber rails and a caddy cover. I appreciate this design, it is easily assembled, the rails have a nice, snug interference fit, and the caddy cover is held in place with a clip and screw.
Troubles I Had
I am not sure what I did wrong but I couldn’t get the system to not look for the, to-be-replaced SSHD. I tried unmounting the drive before a reboot but still, it would continue to wait for the drive. The system would get stuck looking for the old drive and fsck didn’t correct the issue. I became impatient so I just decided to do a complete re-installation of the openSUSE Tumblweed, because I was too lazy to keep searching for a solution. There is probably a great simple solution that just escaped me.
Restoring the Data
There was a bit of a struggle in understanding how to restore the data from Back In Time into my home directory but once it was done, everything was back to normal. It took a bit longer than I expected but everything restored, all the files and settings. Like it never even happened…
A quick check of the SMART monitoring tools:
smartctl -a /dev/sda
=== START OF INFORMATION SECTION ===
Model Family: Crucial/Micron MX1/2/300, M5/600, 1100 Client SSDs
Device Model: Micron_M500_MTFDDAK960MAV
Firmware Version: MU05
User Capacity: 960,197,124,096 bytes [960 GB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 6
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Mon May 21 10:10:56 2018 EDT
SMART support is: Available – device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
My favorite line is the last one that says the test result: “PASSED.”
I am running openSUSE Tumbleweed with KDE Plasma as my desktop environment. The aAverage energy consumption before the upgrade, using the SSHD plus the mSATA drive was 21 watts; under similar loads with the mSATA and the 2.5″ SSD, I am consuming about 17 watts. These numbers, are of course, just estimates at approximate similar loads. It is not a very well controlled power study. Between the two drives I now have a total of 945 GiB of storage available; the most I have had on a laptop.
Opening up Steam is much quicker than before. Starting a game does indeed load a lot quicker than it did on the SSHD. I didn’t take any before and after benchmarks but there is most certainly the feeling of increased speed in everything. The computer was no slouch before but now there is an increased sharpness in using it.
The computer is oddly quite with only the fan left as a moving part. However, the only time I notice there is a fan is when my hand goes past he vent and I can feel a little warmth coming from it. Logging in isn’t quite instantaneous, I do have to wait a few moments but I blame much of that on the fact I heavily use the Akonadi storage service for personal information management. I have more information than most people likely save but suffice to say, the machine starts very quickly.
I didn’t take any external thermal readings from the computer before the upgrade but it feels like the thing does operate a bit cooler. It is only an impression.
This Dell Latitude E6440 seems to have an extra boost of speed, as to be expected. What I didn’t expect was how much I notice the censorial changes of using this laptop now. I have used other solid state only machines before and didn’t think much of them. Perhaps their less than stellar keyboards out weighed the silence of their operation or possible that I use this machine more than most. Regardless, I appreciate the change.
Was the upgrade worth the price I paid for the drive? So far, yes, very much, indeed it was worth it, but as I did buy it used, and although it passed the health self-assessment, I don’t really know how long it is actually going to last. For now, it’s pretty great and I don’t think I would want to go back to “spinning rust” for storage.