Edward wrote:
> So does that mean ZFS is not for consumer computer?
> If ZFS require 4GB of Ram for operation, that means i will need  8GB+ Ram if 
> i were to use Photoshop or any other memory intensive application?
>
>   
No.  It works fine on desktops - I'm writing this on an older Athlon64 
with 1GB.   Memory pressure does seem to become a bit more of an issue 
when I'm doing more I/O on the box (which, I'm assuming, is due to the 
various caches), so for things like compiling, I feel a little cramped.  

Personally, (in my experience only), I'd say that ZFS works well for use 
on the desktop, ASSUMING you dedicate 1GB of RAM to solely the OS (and 
ZFS).  For very heavy I/O work, I think at least 2GB is a better idea.

So, size your total memory accordingly.

> And it seems ZFS memory usage scales with the amount of HDD space?
>   
I think the more proper thing to say is that ZFS memory usage is 
relative to the amount of I/O you are doing.  Very heavy I/O uses much 
more RAM.  It is not per se connected to total size of the pool.

That is, if I've got several TB of disk in a zpool, but I'm doing only 
10 op/sec,  it will consume much less RAM than if I have a 100GB zpool, 
but I'm trying to do 1000 ops/sec.

-- 
Erik Trimble
Java System Support
Mailstop:  usca22-123
Phone:  x17195
Santa Clara, CA
Timezone: US/Pacific (GMT-0800)

_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Reply via email to