SSDs

[Lennart Sorensen]

On Mon, Apr 23, 2012 at 01:38:32PM -0400, William O'Higgins Witteman wrote:
> From time to time I am curious about using an SSD for the OS on my
> desktop.  Is anyone keeping /, usr, /tmp, /var (and other directories as
> appropriate) on an SSD on their desktop?  Is there an improvement in
> performance?
> 
> The slowest and most annoying thing I do on my desktop is moving files
> around - pushing video onto the network, copying large collections of
> files, etc.  Whenever I have big IO going on my desktop becomes very
> unresponsive.  Would moving that activity to a non-root disk help?
> Would an SSD help for general system performance?
> 
> Any experiences would be welcome.  Thanks!

I recently added SSDs to my mythtv box to hold the root FS and the
mysql database.  It certainly helped performance a lot.  I still keep
the recordings on a 4 disk raid5.  Databases like mysql do a lot of random
access and not having to wait for rotational delays and head seek on a
harddisk helps a lot for that.

I put vertex3 120GB in mine.

I was exprimenting with having the journal for the filesystem on the
raid5 on the SSD but I was having some stability issues so I turned
that off.  Doesn't seem like that changed the stability, so I may turn
it on again later when I get a chance.  I think I need to replace the
mainboard, given it seems the chipset on it has issues when 4GB or more
ram is installed.

-- 
Len Sorensen
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