Re: ontape vs onbar

Posted in 2005

Neil Truby — Fri, 12 Aug 2005 18:27:29 +0100 — source: Usenet: comp.databases.informix

"Sebastian, Norma J." <NormaJean.Sebastian@tellabs.com> wrote in message news:1123819964.db90e50df91cec9c2fd9298509fcd802@teranews... >> Neil Truby wrote: >>> IDS 10.0FC3 on Solaris 9 >>> I'm doing some backups to disk. >>> An ontape backup of the 30G database with a 768k TAPEBLK takes about > 25 >>> mins, but an onbar -b -L 0 takes over twice as long. >> How many dbspaces? >>Root, log log, phys log (3 x temp), one large application dbspace. > > What is your storage manager? >>ISM >>How does onbar -b -w run? Yes, onbar -w is even worse - about 2 hours, against 25 minutes with ontape. Very strange. Anyway, I raised a call with Tech Support this morning (437443), so we'll see what they make of it.