From owner-freebsd-hackers Thu Feb 1 09:26:37 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id JAA11715 for hackers-outgoing; Thu, 1 Feb 1996 09:26:37 -0800 (PST) Received: from tfs.com (tfs.com [140.145.250.1]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id JAA11710 for ; Thu, 1 Feb 1996 09:26:35 -0800 (PST) Received: from critter.tfs.com by tfs.com (smail3.1.28.1) with SMTP id m0ti2kr-0003xMC; Thu, 1 Feb 96 09:25 PST Received: from localhost.tfs.com (localhost.tfs.com [127.0.0.1]) by critter.tfs.com (8.6.12/8.6.12) with SMTP id SAA09790; Thu, 1 Feb 1996 18:25:06 +0100 X-Authentication-Warning: critter.tfs.com: Host localhost.tfs.com didn't use HELO protocol To: Joe Greco cc: hackers@freebsd.org Subject: Re: Watchdog timers (was: Re: Multi-Port Async Cards) In-reply-to: Your message of "Thu, 01 Feb 1996 11:17:12 CST." <199602011717.LAA09086@brasil.moneng.mei.com> Date: Thu, 01 Feb 1996 18:25:04 +0100 Message-ID: <9788.823195504@critter.tfs.com> From: Poul-Henning Kamp Sender: owner-hackers@freebsd.org Precedence: bulk > > Optional: NVram for acceleration of NFS &c. sockets > > and a battery for 4-8 Mb ram. Possibly with a little > > clock to do refresh so DRAM could be used. (cheaper) > > This is something we NEED, in order to do any sort of serious NFS service. > PrestoServe style devices are handy in many scenarios in addition to NFS - > news servers and other systems where lots of metadata updates are happening. Not to mention what it does to anything that uses a transaction log. It doesn't even have to be particular fast, anything faster than a disk will be a gain. > I think it should probably be handled as a separate entity from the rest of > this (it's not something everyone wants by a long shot). My idea was that if you could put the sockets on the board cheaply, they you might as well just have one board layout. Remember those boards you could buy for CCI 6/32 and Pyramids with tons of old slow DRAM's on them ? They heated like hell, but you could really get some speed out of them, compared to 8" SMD disks. -- Poul-Henning Kamp | phk@FreeBSD.ORG FreeBSD Core-team. http://www.freebsd.org/~phk | phk@login.dknet.dk Private mailbox. whois: [PHK] | phk@ref.tfs.com TRW Financial Systems, Inc. Future will arrive by its own means, progress not so.