Solid State Disks

[Jason Frisvold]

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On Jul 1, 2010, at 4:47 PM, bmanning at vacation.karoshi.com wrote:
> 	I've been using SSDs for my DNS servers for about two years.
> 
> On Thu, Jul 01, 2010 at 03:38:29PM -0400, Randall C Grimshaw wrote:
>> I think it may be time to ask: Has anyone tried using the SSD 's in a high volume production DHCP (and/or DNS) server? Do the have the speed, reliability, and other features as advertised? Can these be switched to lock read-only like a 'live-OS' CD?
>> 
>> Thank you.
>> Randy

Why SSD?  I find it far less expensive to just use ramdisk...  I found that the majority of the I/O was in logging, so I moved dhcp logging to its own file and placed it on ramdisk.  We have since moved the dhcpd.leases file as well since it just made sense to put it there..  We went from a normal load average of 3-4 to a load average of less then .5, even during busy periods.

We modified the init.d scripts as well as adding cron jobs to periodically back up the dhcpd.leases and log files.

- ---------------------------
Jason Frisvold
Network Engineer
frisvolj at lafayette.edu
- ---------------------------
"What I cannot create, I do not understand"
  - Richard Feynman

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