12-25-2012 01:03 PM
According to the User manual, an mSata drive should not be used as an OS drive.
"If your computer is equipped with both a hard disk drive and an mSATA solid state drive, you are
not recommended to use the mSATA solid state drive as a bootable device. The mSATA solid state drive is
designed and developed for “cache” function purpose only. If you use the mSATA solid state drive as a
bootable device, its reliability is not guaranteed." Page 109
Can anyone comment?
And also, is it a SATAII or a SATAIII port that is available for use in the T530?
Thanks in advance!
12-25-2012 01:17 PM - edited 12-25-2012 01:31 PM
MLC NAND is fairly reliable but when the system starts to go the mSATA or SSD fails quickly with little or no time to recover.
Magneto optically if far more reliable media but much slower. NAND has limits and stresses causing NAND failure. Hence data may be lost if not managed properly by the onboard controller of which the Sandforce controller widely used is the most troublesome. Here is merely one of many documents -http://www.anandtech.com/tag/sandforce I highly recommend Googling reviews on SSD's as there are many including Tomshare tests You want facts not personal opinions. Then you be the judge once informed!
If you do use mSATA because of the major speed boost you should have current images of the drive since you'll not be able to do much once you realize its dying or dead.
I personally would not by an SSD device with a SandForce controller or TLC NAND. The Samsung 840 uses TLC NAND. Marvell controller do stand out however.
12-25-2012 02:36 PM
So this question is more complex then I thought it would be. At the least, I understand why Lenovo warns agains't mSata usage as your primary drive.
Let me ask this, is there something fundamentally different between the E530 and the T530 that would make the mSata drive on the latter more susceptible to degradation/damage? I ask only because I found no such warning in the user manual of the E530. I know that the E530 has only a SATAII connection available for mSata, what about the T530?
And the Marvell controller being better because it doesn't have the TRIM issues that the Sandforce based mSata drives do?
12-25-2012 08:25 PM
04-23-2013 05:08 PM
04-23-2013 05:21 PM
My reading of that warning not to use the SSD as an OS drive is that it's talking about the specific SSD supplied with the laptop, not SSDs in general.
After all, there are plenty of Lenovo laptops shipped with SSDs as the primary drive.
The Crucial m4 mSATA in my T420 is running just fine, thanks. OTOH tripplec has a good point about backup images. I still have a HDD in my T (set to spin down when idle) and keep an Acronis image of the SSD on it. Also external backup of both drives.
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