RE: Raw or Buffered device?

Robert My whole Disaster Recovery (sorry Business Continuity) plan is based on the fact that I can take an archive to a new machine (same O/S, same Informix, similar Processors but totally different disk arrangement (EMC compared to ClarIIon) ), set up the existing chunk softlinks to new raw disk and restore without thinking about it. The raw disk just needs to be the same size as the existing and 660:informix:informix. I've done this on v5 and v7 for the past 5 years and will be doing so again this week. Keith -----Original Message----- From: r.a.reissaus@risdi.com [mailto:r.a.reissaus@risdi.com] Sent: Sunday, September 14, 2003 22:26 To: informix-list@iiug.org Subject: Re: Raw or Buffered device? Paul Watson <paul@oninit.com> wrote in message news:<3F634E49.93BE0D28@oninit.com>... > [cutting] > > IT IS PERFECTLY SAFE to just bring the engine down, > > > remove the symbolic link to /dev/dbroot and replace it with an identically > > > named symbolic link to /dev/rdbroot! > > > > This how ever I do not agree with. Changing the symbolic link will > > result in error : > > > > Cannot open chunk '/opt/DBA/Informix/Links/730/risdi08/primary/root'. > > errno = 19 > > oninit: Fatal error in shared memory initialization > > > > because the (old) link itself is stored in the instances systam > > tables. So it would not be sufficient to 'simply' change the link. > > Robert A. Reissaus > > You can point the link to anywhere you want, the engine has no idea > where the link points to, only the link name He people, I didn't INVENT the error. It occurs! Again and again and again! On SCO, on HPUX, on AIX and on Linux. So stop the 'NONSENSE' remarks unless you can really prove I am wrong, then present the argument and after i have verified you remarks are true and I am wrong (which quite frankly would surprise me enormously) i will admit i am wrong. Robert A, Reissaus ********************************************************************************** This message is sent in strict confidence for the addressee only. It may contain legally privileged information. The contents are not to be disclosed to anyone other than the addressee. Unauthorised recipients are requested to preserve this confidentiality and to advise the sender immediately of any error in transmission. This footnote also confirms that this email message has been swept for the presence of computer viruses, however we cannot guarantee that this message is free from such problems. ********************************************************************************** sending to informix-list