Relocating raw partitions
Geoff Wilson asked how to move Informix raw partitions onto other drives under SCO Unix. Yuri Dovgart suggested dd and links to the new location. gresmi described AIX logical volumes with soft links. Art Kagel agreed: take a level 0 archive, copy the devices, relink the chunk links and restart the engine.
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I need to move the raw partitions that Informix is using to span more than the one drive they are on. Running under SCO Unix. What is the best way possible to do this? Should I just use OS level commands to duplicate the partitions on different drives or is there a better way to do this using native Informix tools? Geoff -- a paranoid is just someone with all of the facts at his disposal - william seaward burroughs 1914-1997 Geoff M. Wilson <gmwils@zark.thedonkeys.org> www.zark.thedonkeys.org/~gmwils
Geoff Wilson <gmwils@eisa.net.au> wrote in message news:8ddl8t$tuh$1@mired.zark.thedonkeys.org... > I need to move the raw partitions that Informix is using to span more than the > one drive they are on. Running under SCO Unix. What is the best way possible > to do this? Should I just use OS level commands to duplicate the partitions on > different drives or is there a better way to do this using native Informix > tools? I think you have to use dd comand. Then use links to point to the new location. -- ------------------------------------------------- With best regards, Yuri Dovgart SAP R/3, Informix technical consultant, Informix Certified Professional, Senior System Consultant System Architecture and High Availability Systems, 'Telecominvest' company Email y_dovgart@tci.ukrtel.net ICQ 39284285 > > Geoff > > -- > a paranoid is just someone with all of the facts at his disposal > - william seaward burroughs 1914-1997 > > Geoff M. Wilson <gmwils@zark.thedonkeys.org> www.zark.thedonkeys.org/~gmwils
Geoff, I'm not sure of the tools available to do this on SCO. But, on AIX systems we use a system utility called smit to create logical volumes which are spread across several physical volumes. Next, we create unix soft links (ln command) to these logical volumes. Then, we create our Informix dbspaces on these logical volumes, using the soft links we've defined. This can help you get nice gains in I/O and performance. HTH! * Sent from RemarQ http://www.remarq.com The Internet's Discussion Network * The fastest and easiest way to search and participate in Usenet - Free!
Geoff Wilson wrote: > I need to move the raw partitions that Informix is using to span more than the > one drive they are on. Running under SCO Unix. What is the best way possible > to do this? Should I just use OS level commands to duplicate the partitions on > different drives or is there a better way to do this using native Informix > tools? > Yes, that is probably the best approach. Take a level zero Informix archive before you start as a safety precaution (judging by your sig I suppose I don't have to say that but I'm paranoid ;-) Then copy the original devices to the new one, relink the links that Informix uses for its chunknames (you DID use links didn't you? else you are hosed), and restart the engine. Art S. Kagel