Re: Adding a Chunk in a Cluster
As I said, this will work. Be aware that there is a sightly higher possibility that the primary will crash in a manner that also leaves the mirror copies of the disks in a condition that will not permit the secondary failover server to start up or it may start but be missing the latest few transactions. Art Art S. Kagel, Principal Consultant ASK Database Management Blog: http://informix-myview.blogspot.com/ Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on the IIUG, nor any other organization with which I am associated either explicitly, implicitly, or by inference. Neither do those opinions reflect those of other individuals affiliated with any entity with which I am affiliated nor those of the entities themselves. On Fri, Jun 20, 2014 at 8:16 PM, Jorge <jorgervt@gmail.com> wrote: > No, we have not configured any HDR, RSS or SDS. In fact we aren't using any > informix tools to make the mirror. > > We only have 2 storages. In each storage we defined 6 logical volumes, > each logical volume was asigned to an informix dbspace. The first logical > volume of the first storage has mirror with the first logical volume of the > second storage and the same happend with the other ones. > > Enviado desde mi iPhone > > El 20/06/2014, a las 15:08, "Art Kagel" <art.kagel@gmail.com> escribió: > > > OK. Is the secondary a cold secondary accessing the mirror? Is it an HDR > > or RSS secondary? An SDS secondary? Sorry I don't understand your > > configuration so I can't answer the question. > > > > Art > > > > Art S. Kagel, Principal Consultant > > ASK Database Management > > > > Blog: http://informix-myview.blogspot.com/ > > > > Disclaimer: Please keep in mind that my own opinions are my own opinions > > and do not reflect on the IIUG, nor any other organization with which I > am > > associated either explicitly, implicitly, or by inference. Neither do > > those opinions reflect those of other individuals affiliated with any > > entity with which I am affiliated nor those of the entities themselves. > > > > On Fri, Jun 20, 2014 at 5:23 PM, Jorge <jorgervt@gmail.com> wrote: > > > >> We have a SAN, and the mirror is trought de LVM of the AIX. > >> > >> Enviado desde mi iPhone > >> > >> El 20/06/2014, a las 12:28, "Art Kagel" <art.kagel@gmail.com> escribió: > >> > >>> A failover cluster as in only one is online at a time and the disks it > >> will > >>> look at at failover time are mirrored from one system to the other > using > >>> disk or SAN level mirroring? > >>> > >>> That should work. Honestly, I trust Informix HDR far more than any disk > >>> mirror based failover clustering technology. There is too big a window > >> for > >>> the mirrored drives to be too far out-or-sync for the failover instance > >> of > >>> Informix to be able to successfully recover. > >>> > >>> Art > >>> > >>> Art S. Kagel, Principal Consultant > >>> ASK Database Management > >>> > >>> Blog: http://informix-myview.blogspot.com/ > >>> > >>> Disclaimer: Please keep in mind that my own opinions are my own > opinions > >>> and do not reflect on the IIUG, nor any other organization with which I > >> am > >>> associated either explicitly, implicitly, or by inference. Neither do > >>> those opinions reflect those of other individuals affiliated with any > >>> entity with which I am affiliated nor those of the entities themselves. > >>> > >>> On Fri, Jun 20, 2014 at 2:54 PM, Jorge <jorgervt@gmail.com> wrote: > >>> > >>>> I have 2 servers in a fail over cluster and 1 have 2 storages. One > >> storage > >>>> makes mirror to the other one, > >>>> And .... > >>>> I need to add a chunk to a dbspace. > >>>> I think I need to make 2 file systems > >>>> One for each storage and add the chunk to the dbspace. > >>>> I think it will work ok with the primary server but what will happend > if > >>>> the > >>>> prymary server fail and the second server takes the control, will be > >>>> available > >>>> all the chunks and dbspaces to the second server? > >>>> > >>>> Thanks in advance. > >>>> > >>>> Enviado desde mi iPhone > >>>> --Apple-Mail-3A4C10DF-FACC-4413-9991-A555B63BA707 > > > > ******************************************************************************* > >>>> Forum Note: Use "Reply" to post a response in the discussion forum. > >>> > >>> --001a11c2ae0e0be34f04fc498036 > > > > ******************************************************************************* > >>> Forum Note: Use "Reply" to post a response in the discussion forum. > > > > ******************************************************************************* > >> Forum Note: Use "Reply" to post a response in the discussion forum. > > > > --089e0160bbeec3107704fc4bb991 > > > > > > > > ******************************************************************************* > > Forum Note: Use "Reply" to post a response in the discussion forum. > > > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > --047d7b3441d60e440704fc669618
Thanks for your help. Enviado desde mi iPhone El 21/06/2014, a las 23:10, "Art Kagel" <art.kagel@gmail.com> escribió: > As I said, this will work. Be aware that there is a sightly higher > possibility that the primary will crash in a manner that also leaves the > mirror copies of the disks in a condition that will not permit the > secondary failover server to start up or it may start but be missing the > latest few transactions. > > Art > > Art S. Kagel, Principal Consultant > ASK Database Management > > Blog: http://informix-myview.blogspot.com/ > > Disclaimer: Please keep in mind that my own opinions are my own opinions > and do not reflect on the IIUG, nor any other organization with which I am > associated either explicitly, implicitly, or by inference. Neither do > those opinions reflect those of other individuals affiliated with any > entity with which I am affiliated nor those of the entities themselves. > > On Fri, Jun 20, 2014 at 8:16 PM, Jorge <jorgervt@gmail.com> wrote: > >> No, we have not configured any HDR, RSS or SDS. In fact we aren't using any >> informix tools to make the mirror. >> >> We only have 2 storages. In each storage we defined 6 logical volumes, >> each logical volume was asigned to an informix dbspace. The first logical >> volume of the first storage has mirror with the first logical volume of the >> second storage and the same happend with the other ones. >> >> Enviado desde mi iPhone >> >> El 20/06/2014, a las 15:08, "Art Kagel" <art.kagel@gmail.com> escribió: >> >>> OK. Is the secondary a cold secondary accessing the mirror? Is it an HDR >>> or RSS secondary? An SDS secondary? Sorry I don't understand your >>> configuration so I can't answer the question. >>> >>> Art >>> >>> Art S. Kagel, Principal Consultant >>> ASK Database Management >>> >>> Blog: http://informix-myview.blogspot.com/ >>> >>> Disclaimer: Please keep in mind that my own opinions are my own opinions >>> and do not reflect on the IIUG, nor any other organization with which I >> am >>> associated either explicitly, implicitly, or by inference. Neither do >>> those opinions reflect those of other individuals affiliated with any >>> entity with which I am affiliated nor those of the entities themselves. >>> >>> On Fri, Jun 20, 2014 at 5:23 PM, Jorge <jorgervt@gmail.com> wrote: >>> >>>> We have a SAN, and the mirror is trought de LVM of the AIX. >>>> >>>> Enviado desde mi iPhone >>>> >>>> El 20/06/2014, a las 12:28, "Art Kagel" <art.kagel@gmail.com> escribió: >>>> >>>>> A failover cluster as in only one is online at a time and the disks it >>>> will >>>>> look at at failover time are mirrored from one system to the other >> using >>>>> disk or SAN level mirroring? >>>>> >>>>> That should work. Honestly, I trust Informix HDR far more than any disk >>>>> mirror based failover clustering technology. There is too big a window >>>> for >>>>> the mirrored drives to be too far out-or-sync for the failover instance >>>> of >>>>> Informix to be able to successfully recover. >>>>> >>>>> Art >>>>> >>>>> Art S. Kagel, Principal Consultant >>>>> ASK Database Management >>>>> >>>>> Blog: http://informix-myview.blogspot.com/ >>>>> >>>>> Disclaimer: Please keep in mind that my own opinions are my own >> opinions >>>>> and do not reflect on the IIUG, nor any other organization with which I >>>> am >>>>> associated either explicitly, implicitly, or by inference. Neither do >>>>> those opinions reflect those of other individuals affiliated with any >>>>> entity with which I am affiliated nor those of the entities themselves. >>>>> >>>>> On Fri, Jun 20, 2014 at 2:54 PM, Jorge <jorgervt@gmail.com> wrote: >>>>> >>>>>> I have 2 servers in a fail over cluster and 1 have 2 storages. One >>>> storage >>>>>> makes mirror to the other one, >>>>>> And .... >>>>>> I need to add a chunk to a dbspace. >>>>>> I think I need to make 2 file systems >>>>>> One for each storage and add the chunk to the dbspace. >>>>>> I think it will work ok with the primary server but what will happend >> if >>>>>> the >>>>>> prymary server fail and the second server takes the control, will be >>>>>> available >>>>>> all the chunks and dbspaces to the second server? >>>>>> >>>>>> Thanks in advance. >>>>>> >>>>>> Enviado desde mi iPhone >>>>>> --Apple-Mail-3A4C10DF-FACC-4413-9991-A555B63BA707 > ******************************************************************************* >>>>>> Forum Note: Use "Reply" to post a response in the discussion forum. >>>>> >>>>> --001a11c2ae0e0be34f04fc498036 > ******************************************************************************* >>>>> Forum Note: Use "Reply" to post a response in the discussion forum. > ******************************************************************************* >>>> Forum Note: Use "Reply" to post a response in the discussion forum. >>> >>> --089e0160bbeec3107704fc4bb991 > ******************************************************************************* >>> Forum Note: Use "Reply" to post a response in the discussion forum. > ******************************************************************************* >> Forum Note: Use "Reply" to post a response in the discussion forum. > > --047d7b3441d60e440704fc669618 > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. >