From owner-freebsd-stable Wed May 3 10:15:57 2000 Delivered-To: freebsd-stable@freebsd.org Received: from itsdsv1.enc.edu (fw1.enc.edu [63.85.52.127]) by hub.freebsd.org (Postfix) with ESMTP id 8944E37B8D3 for ; Wed, 3 May 2000 10:15:53 -0700 (PDT) (envelope-from owensc@enc.edu) Received: from enc.edu (r2s9.r.its.enc.edu [10.100.0.29]) by itsdsv1.enc.edu (8.7.5/8.7.3) with ESMTP id NAA14192; Wed, 3 May 2000 13:14:07 -0400 (EDT) Message-ID: <39105F89.F6167778@enc.edu> Date: Wed, 03 May 2000 13:19:05 -0400 From: "Charles N. Owens" Organization: Eastern Nazarene College X-Mailer: Mozilla 4.7 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: Brad Knowles Cc: spork , "Brandon D. Valentine" , Mark Powell , Joe Karthauser , freebsd-stable@FreeBSD.ORG Subject: Re: How good is AMI MegaRAID support? References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Brad Knowles wrote: > At 1:55 AM -0400 2000/5/3, spork wrote: > > > Last I looked though, vinum cannot protect you from loss of your boot > > device. > > I am told that in FreeBSD 4.0, vinum now has the ability to > mirror the root filesystem. I don't know if this addresses the issue > you are concerned about, but I personally find it very interesting. Do you have any pointers to such information (ideally, something like a "how-to")? I do know that Greg Lehey has been investigating such functionality... Thanks, cno > > For some applications this may not be terribly important, but if > > you cannot afford to bring the machine down, the hardware solution starts > > to look better. > > I must admit that hardware does have certain advantages, but it > does require driver support from the OS (unless it's an external > SCSI-SCSI model), and I believe that the primary things you gain with > hardware RAID controllers is not performance but instead other > advantages, including transparency to the OS, etc.... > > If what you're after is absolute maximum speed for minimum money, > hardware is not the way to go. > > -- > These are my opinions -- not to be taken as official Skynet policy > ====================================================================== > Brad Knowles, || Belgacom Skynet SA/NV -- ------------------------------------------------------------------------- Charles N. Owens Email: owensc@enc.edu http://www.enc.edu/~owensc Network & Systems Administrator Information Technology Services "Outside of a dog, a book is a man's Eastern Nazarene College best friend. Inside of a dog it's too dark to read." - Groucho Marx ------------------------------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message