Re: Informix DSA and RAID 5

Posted in 1997

Richard Stanford — Thu, 8 May 1997 12:11:22 -0500 — source: Informix-list mailing list archive (1991-1998)

On 8 May 1997, Billy Wheeler wrote: > It's got people who love it and people who hate it. I hate it. I'd > rather control my own placement strategy and use Informix mirroring > for crucial DBspaces. The combination (Informix mirrored and RAID mirrored) would allow you to protect both against media type failure (RAID) and informix glitches (a la "I'll think I'll mark rootdbs as down for fun again.") However, we've seen a 25-30% slowdown with Informix mirroring turned on -- processor overhead. This was on both RS and HP-K machines. RAID still slows you down, but not as much. -Richard