just to confirm adding a chunk on HDR

Hi All, Just want to confirm what i'm going to do in adding a chunk into HDR setup. 1. on primary IDS, create a link on raw device in primary $ ln -sf /dev/rawdevice1 /dev/ids.chunk4 2. on secondary IDS(replica), create a link on raw device in secondary. $ ln -sf /dev/rawdevice3 /dev/ids.chunk10 3. on primary server, do this command using informix.. onspaces -a dbspacexx -p /dev/ids.chunk4 -o 0 -s 2048000 (add 2GB chunk ondbspace dbspacexx) is that all? does the /dev/ids.chunk10 (on Sec server) will automatically picked up even has different name? Thanks and Regards,

Hello, you can not have different chunk names (paths) in a HDR pair. Best regards, Javier Gómez IT Specialist Information Management Services - IBM Software Group C/ Santa Hortensia 26-28 28002 Madrid Tlf: 91 397 66 11 Fax: 91 519 39 87 From: "JACK PAPA" <informix2009@gmail.com> To: ids@iiug.org Date: 27.10.2009 09:48 Subject: just to confirm adding a chunk on HDR [17759] Sent by: ids-bounces@iiug.org Hi All, Just want to confirm what i'm going to do in adding a chunk into HDR setup. 1. on primary IDS, create a link on raw device in primary $ ln -sf /dev/rawdevice1 /dev/ids.chunk4 2. on secondary IDS(replica), create a link on raw device in secondary. $ ln -sf /dev/rawdevice3 /dev/ids.chunk10 3. on primary server, do this command using informix.. onspaces -a dbspacexx -p /dev/ids.chunk4 -o 0 -s 2048000 (add 2GB chunk on dbspace dbspacexx) is that all? does the /dev/ids.chunk10 (on Sec server) will automatically picked up even has different name? Thanks and Regards, ******************************************************************************* Forum Note: Use "Reply" to post a response in the discussion forum. Salvo indicado de otro modo más arriba / Unless stated otherwise above: International Business Machines, S.A. Santa Hortensia, 26-28, 28002 Madrid Registro Mercantil de Madrid; Folio 1; Tomo 1525; Hoja M-28146 CIF A28-010791

Hi, in HDR you need to have identical chunk names (so the link destination should be ids.chunk4 on both machines). All the devices must be chown informix:informix and chmod 660, before you add the chunk. Generally, I would place the link destinations in a separate dir from /dev (like /dbs), cause /dev will be regenerated at boot time depending on the OS. Marcus -----Original Message----- From: JACK PAPA [mailto:informix2009@gmail.com] Sent: Tuesday, October 27, 2009 9:48 AM To: ids@iiug.org Subject: just to confirm adding a chunk on HDR [17759] Hi All, Just want to confirm what i'm going to do in adding a chunk into HDR setup. 1. on primary IDS, create a link on raw device in primary $ ln -sf /dev/rawdevice1 /dev/ids.chunk4 2. on secondary IDS(replica), create a link on raw device in secondary. $ ln -sf /dev/rawdevice3 /dev/ids.chunk10 3. on primary server, do this command using informix.. onspaces -a dbspacexx -p /dev/ids.chunk4 -o 0 -s 2048000 (add 2GB chunkon dbspace dbspacexx) is that all? does the /dev/ids.chunk10 (on Sec server) will automatically picked up even has different name? Thanks and Regards, ************************************************************************ ******* Forum Note: Use "Reply" to post a response in the discussion forum.

Yes --- as a rule avoid using /dev/ to create the chunks.... = From: "Marcus Haarmann" <marcus.haarmann@midoco.de> = = To: ids@iiug.org = = Date: 10/27/2009 05:07 AM = = Subject: RE: just to confirm adding a chunk on HDR [17761] = = Sent by: ids-bounces@iiug.org = = Hi, in HDR you need to have identical chunk names (so the link destination should be ids.chunk4 on both machines). All the devices must be chown informix:informix and chmod 660, before you add the chunk. Generally, I would place the link destinations in a separate dir from /dev (like /dbs), cause /dev will be regenerated at boot time depending on the OS. Marcus -----Original Message----- From: JACK PAPA [mailto:informix2009@gmail.com] Sent: Tuesday, October 27, 2009 9:48 AM To: ids@iiug.org Subject: just to confirm adding a chunk on HDR [17759] Hi All, Just want to confirm what i'm going to do in adding a chunk into HDR setup. 1. on primary IDS, create a link on raw device in primary $ ln -sf /dev/rawdevice1 /dev/ids.chunk4 2. on secondary IDS(replica), create a link on raw device in secondary.= $ ln -sf /dev/rawdevice3 /dev/ids.chunk10 3. on primary server, do this command using informix.. onspaces -a dbspacexx -p /dev/ids.chunk4 -o 0 -s 2048000 (add 2GB chunk= on dbspace dbspacexx) is that all? does the /dev/ids.chunk10 (on Sec server) will automatically picked up even has different name? Thanks and Regards, ***********************************************************************= * ******* Forum Note: Use "Reply" to post a response in the discussion forum. ***********************************************************************= ******** Forum Note: Use "Reply" to post a response in the discussion forum. =

You will need to set up a link and use the link to create the chunk ---= and the link name must be the same on the primary as is on the secondary. So what you could do is somthink like... ln -ls /dev/rawdevice1 /db/rawchunk on the primary and ln -ls /dev/rawdevice4 /db/rawchunk on the secondary. And finally use onspaces -c rawchunk /db/rawchunk..... = From: "JACK PAPA" <informix2009@gmail.com> = = To: ids@iiug.org = = Date: 10/27/2009 01:49 AM = = Subject: just to confirm adding a chunk on HDR [17759] = = Sent by: ids-bounces@iiug.org = = Hi All, Just want to confirm what i'm going to do in adding a chunk into HDR se= tup. 1. on primary IDS, create a link on raw device in primary $ ln -sf /dev/rawdevice1 /dev/ids.chunk4 2. on secondary IDS(replica), create a link on raw device in secondary.= $ ln -sf /dev/rawdevice3 /dev/ids.chunk10 3. on primary server, do this command using informix.. onspaces -a dbspacexx -p /dev/ids.chunk4 -o 0 -s 2048000 (add 2GB chunk=on dbspace dbspacexx) is that all? does the /dev/ids.chunk10 (on Sec server) will automatical= ly picked up even has different name? Thanks and Regards, ***********************************************************************= ******** Forum Note: Use "Reply" to post a response in the discussion forum. =

ids-bounces@iiug.org wrote on 10/27/2009 03:47:41 AM: > [image removed] > > just to confirm adding a chunk on HDR [17759] > > JACK PAPA > > to: > > ids > > 10/27/2009 03:49 AM > > Sent by: > > ids-bounces@iiug.org > > Please respond to ids > > Hi All, > > Just want to confirm what i'm going to do in adding a chunk into HDR setup. > > 1. on primary IDS, create a link on raw device in primary > > $ ln -sf /dev/rawdevice1 /dev/ids.chunk4> > 2. on secondary IDS(replica), create a link on raw device in secondary. > > $ ln -sf /dev/rawdevice3 /dev/ids.chunk10> > 3. on primary server, do this command using informix.. > > onspaces -a dbspacexx -p /dev/ids.chunk4 -o 0 -s 2048000 (add 2GB chunkon > dbspace dbspacexx) > > is that all? does the /dev/ids.chunk10 (on Sec server) will automatically > picked up even has different name? No - The chunks on each server must have the same path names. > > Thanks and Regards, > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. >

You have to make the link path/name identical on the two servers (so use /dev/ids.chunk4 on both machines), otherwise you are good to go. Personally I wouldn't put the links into /dev, I would put them under the parent of the IDS installation directory or under the informix login/home directory. But that's a preference only. Art Art S. Kagel Oninit (www.oninit.com) IIUG Board of Directors (art@iiug.org) Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on my employer, Oninit, the IIUG, nor any other organization with which I am associated either explicitly or implicitly. 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 Tue, Oct 27, 2009 at 4:47 AM, JACK PAPA <informix2009@gmail.com> wrote: > Hi All, > > Just want to confirm what i'm going to do in adding a chunk into HDR setup. > > 1. on primary IDS, create a link on raw device in primary > > $ ln -sf /dev/rawdevice1 /dev/ids.chunk4> > 2. on secondary IDS(replica), create a link on raw device in secondary. > > $ ln -sf /dev/rawdevice3 /dev/ids.chunk10> > 3. on primary server, do this command using informix.. > > onspaces -a dbspacexx -p /dev/ids.chunk4 -o 0 -s 2048000 (add 2GB chunk on> dbspace dbspacexx) > > is that all? does the /dev/ids.chunk10 (on Sec server) will automatically > picked up even has different name? > > Thanks and Regards, > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > --0015174bdcc8acd58e0476f0d4df

Hi All, Thanks for confirming... I appreciate all your help. Regards,