> From: "Darrell Newcomb" X-GroupStudy-Version: 3.1.1a X-GroupStudy: Network Technical To: [EMAIL PROTECTED] Subject: Re: Stupid Question [7:32591] Sender: [EMAIL PROTECTED] Reply-To: "Darrell Newcomb" Precedence: bulk
With the key NT cheap shot being: It doesn't matter how coherent the file system is if the OS isn't executing code, but rather rebooting. 'least those crashes proves they wrote a reasonable filesystem. I really don't have anything against NT. Mainly since I'm not running it on any of my servers. :) Darrell Carroll Kong wrote: > > Reason being that NTFS is a journalled file system. Not sure on > NT 3.51's version of NTFS, but if you say so, probably true. (not meant to > be sarcastic, but sincere) > As for the SQL database, depending if it had good rollback > mechanisms to avoid corruption, it may or may not get corrupted, as you said. > As for the unix systems, most of them use UFS, which is not a > journalled file system. However, I do not know of many OSes or > distributions that let you add in a journalled fs. One that comes to mind > is linux with the reiserfs. (linux comes stock with ext2fs). (you can add > in journalled file systems afterwards, one commercial unix in mind that > comes stock and barrel with a journalled fs is the venerable Irix with it's > XFS). Go ahead, pull the plug on him, he won't care. No fsck on > startup. Just smooth rolling. > If you note the pattern here, it is a function of the file system > (or in the database's case, how it retains data and does integrity checks > and if it has rollback recovery to avoid data loss or undo bad transactions). > Not sure if I can give a definitive reason on why the cisco's do > not fear such things. Probably because it is not usually writing data very > often, and the data it writes is essentially a text file (NVRAM > configurations). The "OS" in itself is a static flash file that never > needs to be overwritten during normal runtime operation, only during > upgrades. This is totally different on a fully blown OS that has crazy > writes usually going on during operation. Or even if it did not, has a > good reason to double check for file integrity. The Cisco router was meant > to be more of an appliance like machine, so it's behavior makes sense, and > so does it's obvious resistance to the occasional power plug pull. > > At 06:42 PM 1/21/02 -0500, Mark Odette II wrote: > >Hmmmm..... > >Funny, last I checked, you could turn off in Mid-Boot process, Pull the plug > >in Mid-Shutdown process, or yank the power to the UPS (and no battery left) > >with all NT Machines running (NT3.51 - W2K), and the system would never miss > >a beat in start-up file system recovery. > > > >Now do that to NT servers with Oracle or some SQL-type application server > >running on it, and it may have data corruption- but that's only with the > >DB's ... and that happens, no matter WHAT the platform. > > > >Now, then again, try doing the above such listed tasks of brutality to a Sun > >Box, an SCO box, or an AT&T Unix box, and watch the games begin as "Inodes" > >fly everywhere and the file system checker starts griping about how unhappy > >it is.... and I wouldn't be surprised if an AIX or SGI box did the same. > >DB Server or not. > > > >Sorry... just gotta love those MickeySoft stabs that have no meaning other > >than for slander. > > > >-----Original Message----- > >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > >Sent: Monday, January 21, 2002 12:42 PM > >To: [EMAIL PROTECTED] > >Subject: RE: Stupid Question [7:32591] > > > >Just turn them off or simply unplug them. > > > >Fortunately the IOS was not written by Microsoft and nothing will get > >corrupted!!! > > > >-Serge. > > > >Richard Tufaro wrote: > > > > > > What is the proper way to shutdown a router? not reload, but > > > shutdown? Just flick the switch? Seems to brutal to me. > > > > > > Richard Tufaro - MCSE - GSEC- CCNA > > > Network Engineer - Anda Inc. > > > [EMAIL PROTECTED] > > > MSN IM - [EMAIL PROTECTED] > -Carroll Kong Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=33349&t=33349 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
