True. I'm trying to backup ~4TB in under 12 hours. 8 hours would be nice... I think a single 1Gig Cat5 cable is going to get me around 23 hours at around 850Mbps
On Tue, Apr 9, 2013 at 11:47 PM, Ben Scott <mailvor...@gmail.com> wrote: > On Tue, Apr 9, 2013 at 10:55 AM, Jon D <rekcahp...@gmail.com> wrote: > > I'm trying to wrap my head around the speed of backup appliances like > Data > > Domain and Exagrid. > > The thing that doesn't make sense to me is the backups are going across > > Cat5. > > It seems like they would be really slow for a full backup. > > That depends how fast the network you're running is, and how much > data you've got to worry about, and maybe other things. > > Gigabit Ethernet can stream 125,000,000 8-bit quantities per second. > Framing and protocol overhead rob significantly from that. Let's > assume 75% efficiency, just to have a number. That's 93 megabytes per > second, or 337 gigabytes in one hour. If you're only backing up a > terabyte, that might be just fine. If you're backing up a petabyte, > not so much. > > -- Ben > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to listmana...@lyris.sunbeltsoftware.com > with the body: unsubscribe ntsysadmin > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
