Re: OK Next step: ISM imported restore of onbar -w using disk-based backups
Hello Malc, yes have been there also with the real legato product, took back then longer then a week to recreate from device. In the end we copied the catalog from production to test and that worked. On windowze ism_catalog -recreate <from tapedev> does not work at all.... > Looks like it's reading all the data from each and every chunk on disk > and it takes forever...12 hours+ in our case (on a remotely mounted Yes it will try to reconstruct it's catalog doing small io's You are better off to grab the catalog using tar or backup the bootstrap, this however will kill the other stuff. sorry no better answer; so you can accept it or use something else. I would however if i were you file a feature request to ibm/informix to make this better. will be difficult though. Superboer. On 1 dec, 12:01, Malc <mal...@googlemail.com> wrote: > Ah well. > We've got a procedure together for restoring, following the arcane > "Imported Restore" process from chapter 5 of the ISM guide. > If anyone else has used this procedure, do you get a really S-L-O-W > turnaround on the "ism_catalog -recreate_from" stage? > Looks like it's reading all the data from each and every chunk on disk > and it takes forever...12 hours+ in our case (on a remotely mounted > filesystem from our dev box to the production box for 290Gb of data). > OK we can probably tune this with some super hoopy network cards and > so on but does anyone know why this stage takes so long? What's it > doing?
SB, thanks for that, not as if it's encouraging info though! I'll have a go at copying the catalog over, we're resigned to trashing the target machine ISM installation anyway - which files will we require?
Hello Malc, shutdown ism; tar up stuff under /nsr and you may need to hack around the files in /nsr/res/* ; change and replace the prod host name /ip to the test hostname /ip When we did all of this legato told us that this was highly unsupported........!!!!!!!!! please do test this first on a test box and make plenty of copies.. Superboer. On 4 dec, 16:51, Malc <mal...@googlemail.com> wrote: > SB, thanks for that, not as if it's encouraging info though! > > I'll have a go at copying the catalog over, we're resigned to trashing > the target machine ISM installation anyway - which files will we > require?