Re: IDS on AIX 5.2 Offsets? lv types?

"malcolm weallans" <malcolm.iiug@btopenworld.com> wrote in message news:ceb5t2$a9j$1@news.xmission.com... > > We are running IDS 9.3 on AIX 5.2. We have discovered > that on AIX 5.2 the logical volume control block gets > corrupted if offset 0 is used. This doesn't normally > cause problems until the volume group is exported and > imported. > > We also have a problem with defining logical volume > type. Some installers are setting up the system with > the lv type set to jfs whilst others are setting it to > raw. > > I would welcome any advice on the correct settings for > offset and lv type, and more importantly any advice on > what I should do to migrate the system to the correct > settings. > > regards > > Malcolm > sending to informix-list We use a 40K offset on AIX (which corresponds to 10 pages for IDS) which, so far, has proven to be a sufficiently high and therefore "safe" number. Since we have many many GB of disk space nowadays, we will gladly waste a few KB in return for no nasty potential data override problems. We also always set the lv type to raw. We always had good results with the above guidelines so we keep reusing them... Regards, Hal Maner M Systems International, Inc. www.msystemsintl.com