Re: SDS performance
Alexander wrote: > Hello everybody, > > Our is planning to upgrade IDS from 9.4 to 11.50 along with hardware > upgrade which includes FC attached disk array that will be shared by > two servers. It looks like we can try to use what is called Sared-Disk- > Secondary server. > > I've searched this group for SDS but found nothing. Does that mean > nobody is using or even interested in that feature? > > If anybody has experience with SDS could you please share some > information on that. Particulary, would it affect primary server > performance considering secondary server will not be used until we > change our application to use it for read-only queries? > Minimal - apart from disk I/O caused (if any at all) by both servers accessing the disk concurrently. > I haven't searched for information on automating primary-secondary > failover process but may be somebody could point to some good > reference on that. > You may want to install the Connect Manager component to manage the automatic server failover and the automatic client redirection. Infocenter: http://publib.boulder.ibm.com/infocenter/idshelp/v115/index.jsp Ray. > Thank you > > Alexander
On Aug 12, 3:40 am, Raymond <kuk...@gmail.com> wrote: > Alexander wrote: > > Hello everybody, > > > Our is planning to upgrade IDS from 9.4 to 11.50 along with hardware > > upgrade which includes FC attached disk array that will be shared by > > two servers. It looks like we can try to use what is called Sared-Disk- > > Secondary server. > > > I've searched this group for SDS but found nothing. Does that mean > > nobody is using or even interested in that feature? > > > If anybody has experience with SDS could you please share some > > information on that. Particulary, would it affect primary server > > performance considering secondary server will not be used until we > > change our application to use it for read-only queries? > > Minimal - apart from disk I/O caused (if any at all) by both servers > accessing the disk concurrently. > > > I haven't searched for information on automating primary-secondary > > failover process but may be somebody could point to some good > > reference on that. > > You may want to install the Connect Manager component to manage the > automatic server failover and the automatic client redirection. > > Infocenter:http://publib.boulder.ibm.com/infocenter/idshelp/v115/index.jsp > > Ray. > > > Thank you > > > Alexander Ray, Thank you for the link. Alexander