Re: HELP - Hardware mirroring versus dbms mirroring

Posted in 1994

Cathy Kipp — 17 Aug 1994 11:38:06 -0400 — source: Informix-list mailing list archive (1991-1998)

Joe Lumbley writes: -> ->Hardware mirroring is usually best, as it's faster. Next is HP-UX. Last ->comes OnLine mirroring. OnLine mirroring contains a little bit of logic ->regarding how to handle chunks that are down, but with any luck the HPUX ->or hardware mirroring will never let OnLine see that situation anyway. Joe, Not to disagree with an expert, but I think it's important to mention here that while hardware mirroring may be faster with the OnLine engine, under the 6.0 DSA engine, Informix miroring will offer some performance advantages. Regards, - Cathy -------------------------------------------------------------------------------- Cathy Kipp e-mail: ckipp@vth1.vth.colostate.edu Phone: (303) 491-1294 Colorado State University Veterinary Teaching Hospital Fax: (303) 491-1205 Coming in September, from Prentice Hall, my new book: Programming INFORMIX SQL/4GL: A Step-by-Step Approach (ISBN: 0-13-149394-9)