From owner-freebsd-current Sun Mar 22 18:28:54 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id SAA25658 for freebsd-current-outgoing; Sun, 22 Mar 1998 18:28:54 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from Kitten.mcs.com (Kitten.mcs.com [192.160.127.90]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id SAA25649; Sun, 22 Mar 1998 18:28:52 -0800 (PST) (envelope-from karl@Mars.mcs.net) Received: from Mars.mcs.net (karl@Mars.mcs.net [192.160.127.85]) by Kitten.mcs.com (8.8.7/8.8.2) with ESMTP id UAA00970; Sun, 22 Mar 1998 20:28:20 -0600 (CST) Received: (from karl@localhost) by Mars.mcs.net (8.8.7/8.8.2) id UAA16294; Sun, 22 Mar 1998 20:28:19 -0600 (CST) Message-ID: <19980322202819.07806@mcs.net> Date: Sun, 22 Mar 1998 20:28:19 -0600 From: Karl Denninger To: Christian Kuhtz Cc: shimon@simon-shapiro.org, current@FreeBSD.ORG, root@danberlin.resnet.rochester.edu, dyson@FreeBSD.ORG, Terry Lambert Subject: Re: CURRENT Kernel Status References: <19980322183922.14684@mcs.net> <19980322191253.31345@mcs.net> <19980322212121.26400@delirium.eng.bellsouth.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.84 In-Reply-To: <19980322212121.26400@delirium.eng.bellsouth.net>; from Christian Kuhtz on Sun, Mar 22, 1998 at 09:21:21PM -0500 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sun, Mar 22, 1998 at 09:21:21PM -0500, Christian Kuhtz wrote: > > jfs is a monstrous pig for some uses however (its allocation size is larger > > than ffs) and for that reason its useless for things like news servers - but > > for regular applications its fantastic. > > Actually, that has changed in AIX4 when AIX learned about fragments. And if > memory serves, allocation sizes/blocks were always tunable even before that. > Now that you have fragments in JFS, and it makes life a whole lot nicer. Aha.. They finally fixed that. > > I hated AIX when I had to work with it, but the one thing you simply > > couldn't argue with was their jfs filesystem. > > The AIX learning curve is tough. The nice thing to me is that they really > tried to get to a point where you never have to suspend operations (Sun's > famous Stop-A kludge) or reboot to run your box and adopt to changes in your > environment or failures thereof. Yep. Actually, the learning curve isn't that bad - if you know System V (which AIX really is very close to internally). I used to do all kinds of neat things with it, like displaying system status and load on the LEDs on the front of the machines..... I used RS6000s as "non-stop" servers in a production environment back at VideOcart, and absent a really severe hardware failure they pretty much just kept going, and going... There were some nasty security problems with certain releases, and horrid performance trouble with the Ethernet cards for a while (including memory leaks in the mbuf cluster code) which IBM took forever and a day to fix... that wasn't impressive at all. All the "quick recovery" features aren't worth crap if the OS is full of bugs. But I still liked the jfs filesystems. -- -- Karl Denninger (karl@MCS.Net)| MCSNet - Serving Chicagoland and Wisconsin http://www.mcs.net/ | T1's from $600 monthly / All Lines K56Flex/DOV | NEW! Corporate ISDN Prices dropped by up to 50%! Voice: [+1 312 803-MCS1 x219]| EXCLUSIVE NEW FEATURE ON ALL PERSONAL ACCOUNTS Fax: [+1 312 803-4929] | *SPAMBLOCK* Technology now included at no cost To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message