You actually answered another question I had as well.  I noticed in my latest server-build, that the 'top' command shows an additional line that I'd not seen on the previous server:

 Mem: 36M Active, 29M Inact, 206M Wired, 5647M Free
 ARC: 59M Total, 12M MFU, 45M MRU, 32K Anon, 587K Header, 1766K Other
 Swap: 2048M Total, 2048M Free

That must be the ARC to which you make reference, yes?

but despite having 6GB RAM here, I'm hearing the hard drive doing a lot of logging, and the boot drive is booted into zfs.  So it doesn't seem that much is being retained in the ARC RAM.  Is there a specific way that you turn that function 'on'?


On 11/1/2013 11:00 AM, spamdyke-users-requ...@spamdyke.org wrote:
With ZFS this happens automatically because the file information is 
cached in the ARC RAM unless forced out.  I'm currently running a 91% 
cache hit rate on this server which runs file, web, streaming, and mail 
services.  It's running OpenIndiana (hipster) and has 4G RAM with 4 TB 
mirrored disk space (half full).


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