Date: 04 Mar 98 09:02:00 +0100 From: leifn@image.dk (Leif Neland) To: freebsd-hackers@FreeBSD.ORG Subject: Re: SCSI Bus redundancy... Message-ID: <4bf_9803042116@swimsuit.swimsuit.roskildebc.dk> References: <XFMail.980303170953.shimon@simon-shapiro.org>
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At 04 Mar 98 02:09:53 Simon Shapiro (2:234/49.99) wrote to All regarding Re: SCSI Bus redundancy... in area "freebsd-hacker" SS> I wrote a white paper at Oracle some years ago, claiming that SS> databases over a certain size simply cannot be backed up. I SS> became very UN-popular very quickly. In you moderate setup, you SS> already see the proof of corectness. A company I know has the production database in one location, and a backup database in another. The backup-database operates in "incremental restore" mode (for lack of a better word), and receives the redo-logs from the production database over a dedicated network link. So the backup-database is only a few minutes behind at most. Leif Neland leifn@image.dk --- |Fidonet: Leif Neland 2:234/49 |Internet: leifn@image.dk To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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