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> Joice of hard drive for laptop, SSD technology Laptop
freddie50
 Posted: Nov 16 2016, 10:51 AM
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Good day Ladies and Gents,

I am out there shopping for a new (extremely portable) work laptop on which I am going to install my favorite distro (Scientific Linux).

I have a choice of different hard drive SSD technology but I do not know the difference between them, and neither their pros and cons:
  • 128 GB Solid State Drive, SATA3
  • 180 GB Solid State Drive, SATA3 OPAL2.0 - Capable
  • 256 GB Solid State Drive, SATA3 OPAL2.0 - Capable
  • 256 GB Solid State Drive PCIe-NVMe OPAL2.0 - Capable
  • 512 GB Solid State Drive, SATA3
  • 512 GB Solid State Drive PCIe-NVMe
  • 1 TB Solid State Drive PCIe-NVMe

Can anyone shed some light or recommend where I could find the right information?

I will play with OpenZFS at some point as most of my servers use this format, should this lead me to choose one or another of these disks?

Many thanks for your help and kind regards,

Freddie
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helikaon
 Posted: Nov 22 2016, 09:55 AM
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Hi,

these things just say which bus will be used to connect the HDD to.

I think you're familiar with SATA - it's around for a long time - you need to make sure your laptop support SATA 3.
I'm not familiar with OPAL specification - you gotta google it.

And the PCIe-NVMe means the HDD is connected through the PCI-E bus (the bus the modernd VGA like nvidia etc are used to use) with special Host Controller Interface that enables the SSD communicate through this bus. Again make sure your laptop support it, before buing ..


cheers :-)

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freddie50
 Posted: Dec 21 2016, 11:28 AM
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Belated thank you for your reply Helikaon,
That is very useful!
Season's Greetings
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