I'm not advertising for CRS here, but it is worthy to mention here that CRS has no additional cost and I believe that SG (with clustered filesystem or not) is an additional cost. I agree with your points completely as well. We should also point out that administration tools/interfaces for SG are probably less command-line-required than CRS is (currently, at least). Dan On Fri, Jan 23, 2009 at 9:15 AM, Matthew Zito <mzito@xxxxxxxxxxx> wrote: > > I generally agree, with the two notable exception that using SG+CRS gives > you the option of a clustered filesystem, something that you don't get with > just CRS, and failover interconnects, which I believe you still can't do > with CRS. If you don't care about those things though, or just don't want > to deal with the added complexity. > > Thanks, > Matt > > -- > Matthew Zito > Chief Scientist > GridApp Systems > P: 646-452-4090 > mzito@xxxxxxxxxxx > http://www.gridapp.com > > > > -----Original Message----- > From: Dan Norris [mailto:dannorris@xxxxxxxxxxxxx <dannorris@xxxxxxxxxxxxx> > ] > Sent: Fri 1/23/2009 10:15 AM > To: Matthew Zito > Cc: Freek.DHooge@xxxxxxxxx; sxmte@xxxxxxxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx > Subject: Re: Thoughts on crs installation on HP-UX > > Conversely, I don't know why you'd use SG+CRS if you're doing > active/passive, since CRS by itself is a perfectly respectable HA > clustering > solution :). With CRS and ASM-managed database storage, there's nothing > you'd be missing. If you aren't using ASM, though, you'd have to use RAW > devices or some other cluster filesystem since OCFS isn't available on > HPUX. > > Dan > > On Fri, Jan 23, 2009 at 7:52 AM, Matthew Zito <mzito@xxxxxxxxxxx> wrote: > > > > > Actually, if you didn't want to pay for ServiceGuard, you could use CRS > > alone for either case: active-active (RAC), or active-passive. I'm not > sure > > why you'd use SG+CRS if you're doing active/passive, since SG is by > itself a > > perfectly respectable HA active/passive clustering solution. > > > > Thanks, > > Matt > > > > -- > > Matthew Zito > > Chief Scientist > > GridApp Systems > > P: 646-452-4090 > > mzito@xxxxxxxxxxx > > http://www.gridapp.com > > > > > > > > > > -----Original Message----- > > From: oracle-l-bounce@xxxxxxxxxxxxx on behalf of D'Hooge Freek > > Sent: Fri 1/23/2009 6:20 AM > > To: sxmte@xxxxxxxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx > > Subject: RE: Thoughts on crs installation on HP-UX > > > > Maureen, > > > > If you are talking about active-passive clustering, then you don't need > crs > > (don't even think you can use it). > > If you are talking about active-active clustering then you need rac (and > > thus crs). > > > > > > Regards, > > > > > > Freek D'Hooge > > Uptime > > Oracle Database Administrator > > email: freek.dhooge@xxxxxxxxx > > tel +32(0)3 451 23 82 > > http://www.uptime.be > > > > > > > > > > -- > > //www.freelists.org/webpage/oracle-l > > > > > > > > > >