[CentOS] Centos/Linux Disk Caching, might be OT in some ways

Christopher Chan christopher.chan at bradbury.edu.hk
Fri Jan 29 00:25:20 UTC 2010


> There are concerns that everyone's currently fast performing LVM file
> systems will suddenly become doggish once barrier support is included
> and in some cases it will be true. Using a separate SSD device as a
> journal can help in some cases.
>

That's only if you are using ext3/ext4 and data=journal. Are SSDs faster 
than bbu nvram cards?


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