Onbar - some advice please

Posted in 2004

Topics: Backup & Restore, Installation, Setup & Upgrades

malcolm weallans — Mon, 20 Dec 2004 20:58:26 -0000 — source: Usenet: comp.databases.informix

This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C4E6D6.A6F943C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I have a number of customers who really need to use onbar. They need point-in-time recovery, parallel backups, and parallel restores. I have been trying to get information from IBM/Informix on this but am held at arms length by a distributor who isn't answering my questions. My questions are:- Is there a stable 9.3 release which supports point-in-time restore? Is there a stable 9.4 release which supports point-in-time restore? One of my customers had need of point-in-time recently and it failed. IBM/Informix recommended that we upgrade to 9.40.FC5 as that fixed a problem with onbar. Unfortunately the bug that was fixed in 9.40.FC5 is not the same scenario as my customer. It has only taken 18 days to get a full description of the bug from IBM/Informix. Have any of the members of this esteemed list succeeded in doing point-in-time restores reliably? and if so with which releases? And were any special procedures used for backing up? regards Malcolm ------=_NextPart_000_0005_01C4E6D6.A6F943C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Dus-ascii"> <TITLE>Message</TITLE> <META content=3D"MSHTML 6.00.2900.2523" name=3DGENERATOR></HEAD> <BODY> <DIV> I have a number of customers who = really need to=20 use onbar. They need = point-in-time=20 recovery, parallel backups, and = parallel=20 restores. I have been trying to = get=20 information from IBM/Informix on this but am held=20 at arms length by a = distributor who=20 isn't answering my questions. My questions are:- Is there a stable 9.3 release which = supports point-in-time restore? Is there a stable 9.4 release which = supports point-in-time restore? One of my customers had need of=20 point-in-time recently and it = failed.=20 IBM/Informix recommended that we = upgrade=20 to 9.40.FC5 as that fixed a problem = with=20 onbar. Unfortunately the bug that was fixed in=20 9.40.FC5 is not the same scenario as my customer. It<SPAN=20 class=3D462545620-20122004> has only taken 18 days to get a full=20 description of = <FONT=20 face=3DArial size=3D2>the bug from IBM/Informix. Have any of the members of this = esteemed=20 list succeeded in doing = point-in-time=20 restores reliably? and if so = with which=20 releases? And were any special=20 procedures used for = backing=20 up? regards Malcolm</DIV></BODY></HTML> ------=_NextPart_000_0005_01C4E6D6.A6F943C0-- sending to informix-list

↪ replying to malcolm weallans

Brice — 21 Dec 2004 08:58:41 -0800 — source: Usenet: comp.databases.informix

Malcolm, "Is there a stable 9.3 release which supports point-in-time restore?" - Yes. I don't recall anything that stopped us. "Is there a stable 9.4 release which supports point-in-time restore?" - Yes. I don't recall anything that stopped us. "Have any of the members of this esteemed list succeeded in doing point-in-time restores reliably?" - Me. I've run point-in-time restores since 7.22. Can't say I've run into any real problem. Thanks for the complement. "And if so with which releases?" - Uh, I've lost count. I currently have 7.30.UC7, 7.31.UC7, 8.31.UC1, 9.30.UC2E3 and 9.40.UC1. I've worked with Legato and Veritas as storage managers. "And were any special procedures used for backing up?" - I understand that storage manager vendors implements their own XBSA library installation procedures. Each one, unfortunately, is a little different. Read the docs. - Backup the $INFORMIXDIR/etc directory AFTER you've run your onbar backup, since there are a few files in this directory that are updated after the backup finishes. - Always backup logical logs, even if you don't feel you need them (they come in handy in the oddest times). - Make sure that BAR_DEBUG is off, unless Informix support asks you to turn it on. BAR_DEBUG causes a huge performance drain. - Remember that onbar and the storage manager need their own set of kernel resources, so please be kind. Hope this helps. Brice Avila malcolm weallans wrote: > This is a multi-part message in MIME format. > > ------=_NextPart_000_0005_01C4E6D6.A6F943C0 > Content-Type: text/plain; > charset="us-ascii" > Content-Transfer-Encoding: 7bit > > I have a number of customers who really need to use onbar. They need > point-in-time recovery, parallel backups, and parallel restores. I have > been trying to get information from IBM/Informix on this but am held at > arms length by a distributor who isn't answering my questions. > > My questions are:- > > Is there a stable 9.3 release which supports point-in-time restore? > > Is there a stable 9.4 release which supports point-in-time restore? > > One of my customers had need of point-in-time recently and it failed. > IBM/Informix recommended that we upgrade to 9.40.FC5 as that fixed a > problem with onbar. Unfortunately the bug that was fixed in 9.40.FC5 is > not the same scenario as my customer. It has only taken 18 days to get a > full description of the bug from IBM/Informix. > > Have any of the members of this esteemed list succeeded in doing > point-in-time restores reliably? and if so with which releases? And were > any special procedures used for backing up? > > regards > > Malcolm > > > ------=_NextPart_000_0005_01C4E6D6.A6F943C0 > Content-Type: text/html; > charset="us-ascii" > Content-Transfer-Encoding: quoted-printable > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> > <HTML><HEAD> > <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = > charset=3Dus-ascii"> > <TITLE>Message</TITLE> > > <META content=3D"MSHTML 6.00.2900.2523" name=3DGENERATOR></HEAD> > <BODY> > <DIV> > I have a number of customers who = > really need to=20 > use onbar. They need = > point-in-time=20 > recovery, parallel backups, and = > parallel=20 > restores. I have been trying to = > get=20 > information from IBM/Informix on this but am held class=3D462545620-20122004>=20 > at arms length by a = > distributor who=20 > isn't answering my questions. > My questions are:- > Is there a stable 9.3 release which = > > supports face=3DArial=20 > size=3D2>point-in-time restore? > Is there a stable 9.4 release which = > > supports face=3DArial=20 > size=3D2>point-in-time restore? > One of my customers had need of=20 > point-in-time recently and it = > failed.=20 > IBM/Informix recommended that we = > upgrade=20 > to 9.40.FC5 as that fixed a problem = > with=20 > onbar. Unfortunately the bug that was fixed in class=3D462545620-20122004>=20 > 9.40.FC5 is not the same scenario as my customer. It<SPAN=20 > class=3D462545620-20122004> has only taken 18 days to get a full=20 > description of = > <FONT=20 > face=3DArial size=3D2>the bug from IBM/Informix. > Have any of the members of this = > esteemed=20 > list succeeded in doing = > point-in-time=20 > restores reliably? and if so = > with which=20 > releases? And were any special=20 > procedures used for = > backing=20 > up? > regards > Malcolm</DIV></BODY></HTML> > > ------=_NextPart_000_0005_01C4E6D6.A6F943C0-- > > sending to informix-list

Glossary

onbar