jwcolby
jwcolby at colbyconsulting.com
Fri May 18 20:34:13 CDT 2007
I think you have to use something. It works for me and I have so many systems that I have to standardize on something. I have had as many as three different software firewalls running on various machines at the same time and it is just a mess. Comodo is easy to get working, free (FOREVER according to their website;) and appears to do a good job. John W. Colby Colby Consulting www.ColbyConsulting.com -----Original Message----- From: dba-vb-bounces at databaseadvisors.com [mailto:dba-vb-bounces at databaseadvisors.com] On Behalf Of Francisco Tapia Sent: Friday, May 18, 2007 7:27 PM To: dba-vb at databaseadvisors.com Subject: Re: [dba-VB] OT: FYI-System Transfer timing you sure love your comodo :) On 5/18/07, jwcolby <jwcolby at colbyconsulting.com> wrote: > > I just thought you might be interested in some numbers, transferring a > large file from system to system on a network. > > Two identical computers, 3.8g X2 AMD proc systems, running Windows 2003. > Both systems run Comodo personal firewall (software firewall) with > specific rules allowing transfers from/to any other computer within my > internal network. Both systems use an Areca 1220 dedicated RAID > controller, and both systems use Seagate 7200.10 drives in the arrays. > The "From" system has a > Raid6 Array, the "To" system has a Raid 5 array. There is a gigabit > switch between the systems. > > I am transferring a 120 gbyte SQL Server database file (dbf). When > the transfer started it "settled down" after a couple of seconds > saying it would take 48 minutes to transfer the file, which indicates > about 2.5 gigabytes / minute, 42 mb / second. Testing has shown the > read speed to be about 450 mbyte / sec for these arrays, so that is > most likely the write speed of the > Raid5 destination array. Write speed for these arrays is just > slightly worse than the write speed of any single disk. > > Using task manager to simply view the network usage, the network seems > to be using about 40% capacity on average. > > Again, using task manager, the CPU usage for the two cores shows core > one swinging between 0 and 40%with a rough average around 20%. Core > two is swinging between 60% and 80%. When the work is steady (and > there are places where both cores, but particularly core 2 varies > wildly), the "average" is reported as around 40%, as displayed in the > CPU Usage. All of this usage being on the transmitting system. The > task reporting most usage time is system idle, then explorer. > > System two (the receiving system) shows almost no Core 1 usage and > Core 2 swinging wildly, but again averaging around 40% or so usage, > both cores combined, per the CPU Usage display. > > John W. Colby > Colby Consulting > www.ColbyConsulting.com > > _______________________________________________ > dba-VB mailing list > dba-VB at databaseadvisors.com > http://databaseadvisors.com/mailman/listinfo/dba-vb > http://www.databaseadvisors.com > > -- -Francisco http://sqlthis.blogspot.com | Tsql and More... _______________________________________________ dba-VB mailing list dba-VB at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/dba-vb http://www.databaseadvisors.com