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SSD-cache setup
dhamaniasad
Member
in Help
I have a server with a 500GB HDD and a 128GB SSD, both attached to SATAII ports.
What I want to do is utilize the SSD drive for caching purposes to improve IO performance, but I am not very sure of how I can achieve that setup, as I cannot add any hardware to the server.
I've heard about flashcache, but I don't know anything about it. I want to install CentOS 6.5 on this server.
Can somebody tell me how to setup SSD caching on this server?
Comments
Hi!
Are you want to use this server to virtualisation, or a regular server?
What kind of services are you want to run on it?
how about using ssd as swap
Virtualization. QEMU.
Not sure how that would work out. Since from experience, VPSes don't really use SWAP that much.
Google flashcache / bcache / dm-cache
All provide means for using ssd as cache device, but are still somewhat beta stage, maybe not an option if its a production box
Its a production box. Does that mean I have to purchase some hardware in order to be able to utilize the SSD for caching?
I haven't tested it in a while, so you will need to research when i looked at the options a few months ago they were all not production ready in my opinion.
I had just seen a glimpse of the word flashcache somewhere before. Just read about it and figured out how to set it up.
FlashCache is easy to set up, however it doesn't work with the latest CentOS 6.5 kernel.