I have continued pondering this thread (my site is quite large also), and I wanted to toss out a question: has anyone compared the performance of an SSD (or an SSD Raid-0+) under a DHCPD server?
Randall Grimshaw rgrim...@syr.edu ________________________________________ From: The EDUCAUSE Wireless Issues Constituent Group Listserv [WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] on behalf of Hanset, Philippe C [phan...@utk.edu] Sent: Monday, August 27, 2012 11:55 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] DHCP losing its mind.. Thank you all for the great suggestions. I have forwarded all to our system group. Thank you again, Philippe On Aug 27, 2012, at 10:17 PM, Frank Bulk <frnk...@iname.com> wrote: > I assume you have ping-ahead turned off? > > Frank > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Hanset, Philippe C > Sent: Monday, August 27, 2012 1:20 PM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: [WIRELESS-LAN] DHCP losing its mind.. > > All, > > (trying to help our systems group by asking this list) > > Have any of you experienced DHCP issues due to too many machines requesting > leases? > > We run two ISC DHCP servers (in Active-Active mode) with 30 minutes lease > time > Running on SUN V440, no unusual I/O load, no unusual CPU load and ethernet > is fine. > > DHCP is literally not responding to lease requests, on wired and on > wireless. > > We were fine during the summer (with 5000 concurrent users), but we are not > now with 14,000 concurrent users. > > Thanks, > > Philippe > > Philippe Hanset > University of Tennessee, Knoxville > www.eduroamus.org > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
