Hi guys, I am trying to boost the performance of my Freenas box I am a novice so I tried to read about how the ZIL and Cache work with ZFS but i am still a little puzzled as to which would probably give me the most performance gain. I use my freenas box to host "my documents", Stream my movies and some FTP use. Currently i have a RAIDZ with 4x 1TB drives, 8GB DDR3 RAM. I have 1 CFIS share that I use to access all of my files.
So my questions are based on what i am doing with my Freenas if i buy an SSD I am going to benefit more by using this drive to host the ZIL or use it as a cache drive? Also how big of an SSD do you think i should get? anyone have any thoughts or input??
I read here and it sounds like Putting the ZIL on a separate drive could really help but it seems like you'll only notice a big difference if you have a lot of synchronous writes. They have a Utility to see how your ZIL looks but i don't know how to use it with Freenas.
(Article)
http://constantin.glez.de/blog/2010/07/solaris-zfs-synchronous-writes-and-zil-explained
(Utility)
http://www.richardelling.com/Home/scripts-and-programs-1/zilstat
ZFS Raidz
4 x 1TB Hard drives
8GB of DDR3 RAM
Primarily used for CFIS Shares and occasional FTP.
As Always Thanks for your help!!
So my questions are based on what i am doing with my Freenas if i buy an SSD I am going to benefit more by using this drive to host the ZIL or use it as a cache drive? Also how big of an SSD do you think i should get? anyone have any thoughts or input??
I read here and it sounds like Putting the ZIL on a separate drive could really help but it seems like you'll only notice a big difference if you have a lot of synchronous writes. They have a Utility to see how your ZIL looks but i don't know how to use it with Freenas.
(Article)
http://constantin.glez.de/blog/2010/07/solaris-zfs-synchronous-writes-and-zil-explained
(Utility)
http://www.richardelling.com/Home/scripts-and-programs-1/zilstat
ZFS Raidz
4 x 1TB Hard drives
8GB of DDR3 RAM
Primarily used for CFIS Shares and occasional FTP.
As Always Thanks for your help!!