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I have a Lenovo Y500 with a dual GTX650M, 16Gb SSD and 1Tb HDD.

I just install a clean Ubuntu 13.04 then upgrade to 13.10. Previously I had windows 8 but I cleaned it off and only use Ubuntu 13.10 since then.

What I'm trying to ask is that:

Is there any SSD cache out of the box for Ubuntu 13.10 or do I have to manually enable them by using flashcache/dm-cache/bache/etc ?

My current setting of SSD in my BIOS is AHCI and Y500 AFAIK doesn't have RAID option. So is there anything I can do to have an alternative to Intel Smart Response technology that is available in Windows 8?

Lastly, would it be better if I just install /root on the SSD with /home on HDD? Will there be any performance improvement using this set-up instead of SSD Cache?

Thank you in advance for your help. Since I'm very new to Ubuntu, some links to existing tutorials or informations will be so much appreciated.

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2 Answers 2

With 16 GB the SSD may be a bit too small to install the root filesystem to. (You don't want to always do clean up and some times you want to work with huge files, like multichannel audio in Audacity.)

Ubuntu doesn't activate SSD caching by default (and it also doesn't automatically enable TRIM/discard for EXT4 on SSDs), so you need to install and configure one of the solutions you listed.

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I have similar hardware configuration in my Asus k56cm, and same questions.

I tried to use flashcache, but I'm having problems. You can see in my historical questions. Flashcache on Xubuntu 13.04

The better solution I found is using flashcache, instead the others, because kernel recompilation is not necessary, but having only 24gb in the ssd, I think that caching /root is too large. I think the better thing is cache /home

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