Date: Fri, 12 Jan 2001 00:43:42 +0100 From: Christoph Sold <christoph.sold@server.i-clue.de> To: Oscar Ricardo Silva <oscars@mail.utexas.edu> Cc: questions@FreeBSD.ORG Subject: Re: What are some ways to move one system to new hardware? Message-ID: <3A5E452E.D63FAE97@i-clue.de> References: <4.3.2.7.2.20010111170817.00af9590@mail.utexas.edu>
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Oscar Ricardo Silva schrieb: > > I've got some FreeBSD 4.x and some Linux systems running. We've received > new computers and I've been asked to move the existing systems to the new > hardware. Some of these are just file servers, others directory servers, > and some just being used for mail. I've been backing them up using Amanda > 2.4.2 and have been able to restore files here and there. It's been > suggested that I could restore an entire system to the new hardware but I'm > unsure how to begin. > > Can anybody suggest some ways of moving the existing systems to the new > hardware? I've thought about just copying the contents of the drives, but > the less the downtime the better. 1) Put the new boxes online, make a fresh install, tweak the systems the way you like it. 2a) NFS allows you to mount the old machines contents into the new boxes. Transfer the contents when you like it. 2b) rdump to the new boxes from the old boxes, restore on the new boxes 2c) dump to a tape on the backup host, restore from tape on the new box. 3) After you sync the contents, transfer the IP addresses to the new boxes. 2a) Allows you to transfer services to the new machines while leaving the contents on the old boxes. Service is not disturbed. 2b) Is most efficient if you decide to go offline while transferring the data 2c) Is most secure -- at least you got a dump on tape. Transferring the IP to another NIC keeps changes to network configurations at a minimum, although poisoned arp tables can make this an exciting experience, too. HTH -Christoph Sold To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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