Re: Routers vs. PC's for routing - was list problems?
Then why ot boot from a CD-ROM? Sure, it moves, but only for the few minutes it takes to boot. Then it spins down and sits idle for the n days/weeks/months until the next reboot. It would probably last as long as the solid state drive, and would be cheaper. The big problem here, of course, is software upgrades. Personally, I'd just use a hard drive and initrd (under linux) and leave the hd controller out of the kernel. When it comes time to upgrade, reboot to an alternate kernel that has the hd support code. But that's more of a discussion for a Linux list than here. -Dave On 5/23/2002 at 18:01:03 -0400, Steven J. Sobol said:
On Thu, 23 May 2002, E.B. Dreger wrote:
SJS> a basic question, but the only EIDE mass-storage devices SJS> I've used are more traditional drives.
Why not partition wisely, then mount the desired partition as read-only? Or I guess one _could_ mount each partition as RO...
But why?
The box I want to build is passing packets between the rest of my network (and the public Internet) and one server that will hold sensitive data. It'll be a Linux box with the TCP/IP stack running in bridged mode, with two ethernet adapters installed. The box just needs to boot up and run. It doesn't need to log anything.
-- Steve Sobol, CTO (Server Guru, Network Janitor and Head Geek) JustThe.net LLC, Mentor On The Lake, OH 888.480.4NET http://JustThe.net "In a 32-bit world, you're a 2-bit user/You've got your own newsgroup: alt.total.loser" - "Weird Al" Yankovic, "It's All About the Pentiums"
-- Dave Israel Senior Manager, IP Backbone Engineering
DI> Date: Thu, 23 May 2002 18:22:50 -0400 DI> From: Dave Israel DI> Then why ot boot from a CD-ROM? Sure, it moves, but only for DI> the few minutes it takes to boot. Then it spins down and DI> sits idle for the n days/weeks/months until the next DI> reboot. It would probably last as long as the solid state DI> drive, and would be cheaper. Flash lasts longer in my experience. Besides, assuming one doesn't wish to load Bloatware 2.5 on a router, a "big enough" flash drive is rather inexpensive. Even if it were $100 extra, the lack of moving parts is a good thing. Everything that you say one can do from a CDROM, one can do from flash. CDROM technology gains you nothing. -- Eddy Brotsman & Dreger, Inc. - EverQuick Internet Division Phone: +1 (316) 794-8922 Wichita/(Inter)national Phone: +1 (785) 865-5885 Lawrence ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Date: Mon, 21 May 2001 11:23:58 +0000 (GMT) From: A Trap <blacklist@brics.com> To: blacklist@brics.com Subject: Please ignore this portion of my mail signature. These last few lines are a trap for address-harvesting spambots. Do NOT send mail to <blacklist@brics.com>, or you are likely to be blocked.
On Thu, 23 May 2002, E.B. Dreger wrote:
Everything that you say one can do from a CDROM, one can do from flash. CDROM technology gains you nothing.
Depends on what flash you use. There's no way to write protect compactflash. CDROM technology gains you security in the case where m4d h4x0r roots your router and tries to stomp all over the system files. The lack of moving parts is attractive though, but since you only use the cdrom occasionally, I suspect you wont gain much in MTBF. -Dan -- [-] Omae no subete no kichi wa ore no mono da. [-]
On Thu, 23 May 2002, Dave Israel wrote:
Then why ot boot from a CD-ROM? Sure, it moves, but only for the few minutes it takes to boot. Then it spins down and sits idle for the n days/weeks/months until the next reboot. It would probably last as long as the solid state drive, and would be cheaper.
The big problem here, of course, is software upgrades.
CD's were the other option I was considering. I'd rather use CD's because they are more durable than floppies. WRT software upgrades, the only thing I'd be rebuilding is the kernel - you rebuild the kernel, create an ISO filesystem, and rip it to CD...
Personally, I'd just use a hard drive and initrd (under linux) and leave the hd controller out of the kernel. When it comes time to upgrade, reboot to an alternate kernel that has the hd support code. But that's more of a discussion for a Linux list than here.
Yup. Topic drift... -- Steve Sobol, CTO (Server Guru, Network Janitor and Head Geek) JustThe.net LLC, Mentor On The Lake, OH 888.480.4NET http://JustThe.net "In a 32-bit world, you're a 2-bit user/You've got your own newsgroup: alt.total.loser" - "Weird Al" Yankovic, "It's All About the Pentiums"
participants (4)
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Dan Hollis -
Dave Israel -
E.B. Dreger -
Steven J. Sobol