RE: MC/Serviceguard vs Sun Clusters
LMAO -Original Message- [mailto:[EMAIL PROTECTED]] Sent: 07 February 2002 21:53 To: Multiple recipients of list ORACLE-L Talk about serendipity -- I hope you payed that disconnected contractor a bonus for debugging your failsafe setup? -Original Message- Sent: Thursday, February 07, 2002 9:00 AM To: Multiple recipients of list ORACLE-L Rama, We did the MC/ServiceGuard thing some years ago. Worked well, after our SA rebuilt the servers from ground 0. Adding it on to an existing server is ok, but somewhat unstable. One item to be VERY careful of. The heartbeat cable, in our case a ethernet thin line, needs to be on a dedicated link, preferably a purchased vs. custom made cable, and protected from accidental disconnect. Ours got disconnected by a contractor working in the computer room because it was in his way. The resulting reboot of the backup server and forcible takeover of the disk farm absolutely destroyed the database. We had more file corruption than I ever could have imagined. Consequently we abandoned ServiceGuard are going to standby databases instead. Dick Goulet Reply Separator Author: Rama Malladi [EMAIL PROTECTED] Date: 2/6/2002 5:23 PM Hi... I am looking for inputs from anybody who has experience in both MC/Serviceguard (MC/S) as well as Sun cluster implementation. If a DBA/SA team has lots of experience in implementing MC/Serviceguard clusters on HP and trying to move to SunClusters for HA solution ... a) What are the common things between MC/S and and Sun clusters (ex: about 5 minute fail-over time, fixed IP address, 2 or more nodes in a cluster, disk sharing etc..) b) Any differences between these... What are the things to watch out for (assuming the team already knows in and out of MC/Serviceguard) Thank you in advance... Rama -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rama Malladi INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Kirsch, Walter J (Northrop Grumman) INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). The information contained in this communication is confidential, is intended only for the use of the recipient named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please re-send this communication to the sender and delete the original message or any copy of it from your computer system. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Robertson Lee - lerobe INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information
RE: RE: MC/Serviceguard vs Sun Clusters
Sounds like a poor HA cluster implementation. In our environment, all the disks are in disk groups (which are known to all the hosts in the cluster). Only one host can have the diskgroup imported at one time. That's just basic hardware clustering 101. We also have EMC disk behind it all. It's the BCV splits for backup and report databases where the fun comes in. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Friday, February 08, 2002 10:58 AM To: Multiple recipients of list ORACLE-L Subject: Re:RE: MC/Serviceguard vs Sun Clusters Glenn, The database corruption we had occurred under a very specific circumstance. It occurred only when the prime server was alive well and the backup server thought the prime had died. Now, after some correction by my SA, we were using a much older version of ServiceGuard at the time things have somewhat changed in the interim although not enough to make him comfortable. In this scenario, the backup system rebooted. During that reboot it forcibly wrenched the disk drives away from the prime system, forcing a complete failure of the prime server, then mounted and tried to run the database. When this occurred file lengths would change all over the place, control files would be 0 bytes, a 100 MB datafile might tell you it was 150MB or 50MB. Mount points that had been 40% used were now either 100% or 0% used. In short all kinds of strange things would happen, to Oracle and HP files. HP admitted that this would happen, since the files were 'still opened for write by the prime system' and had been improperly switched. Regrettably at the time they did not have a way to prevent it. Dick Goulet Reply Separator Author: Glenn Travis [EMAIL PROTECTED] Date: 2/7/2002 1:07 PM Could you explain the file corruption in a little more detail? I cannot imagine how failover would cause file corruption, much less how a properly configured running Oracle instance can get 'absolutely destroyed'. Isn't that the purpose of having Oracle over say a nonlogged, singlethreaded, cheapo db engine...? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 07, 2002 9:00 AM To: Multiple recipients of list ORACLE-L Subject: Re:MC/Serviceguard vs Sun Clusters Rama, We did the MC/ServiceGuard thing some years ago. Worked well, after our SA rebuilt the servers from ground 0. Adding it on to an existing server is ok, but somewhat unstable. One item to be VERY careful of. The heartbeat cable, in our case a ethernet thin line, needs to be on a dedicated link, preferably a purchased vs. custom made cable, and protected from accidental disconnect. Ours got disconnected by a contractor working in the computer room because it was in his way. The resulting reboot of the backup server and forcible takeover of the disk farm absolutely destroyed the database. We had more file corruption than I ever could have imagined. Consequently we abandoned ServiceGuard are going to standby databases instead. Dick Goulet Reply Separator Author: Rama Malladi [EMAIL PROTECTED] Date: 2/6/2002 5:23 PM Hi... I am looking for inputs from anybody who has experience in both MC/Serviceguard (MC/S) as well as Sun cluster implementation. If a DBA/SA team has lots of experience in implementing MC/Serviceguard clusters on HP and trying to move to SunClusters for HA solution ... a) What are the common things between MC/S and and Sun clusters (ex: about 5 minute fail-over time, fixed IP address, 2 or more nodes in a cluster, disk sharing etc..) b) Any differences between these... What are the things to watch out for (assuming the team already knows in and out of MC/Serviceguard) Thank you in advance... Rama -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rama Malladi INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing
Re: MC/Serviceguard vs Sun Clusters
Stay with HP Serviceguard! From experience, I rank HA solutions in this order: 1. HP serviceguard - easy and it works. 2. IBM HACMP - do it the way IBM wants it and it works. 3. Sun Cluster - get a high paid consultant to set it up and have them come back to change it :) Better yet, go with Veritas Trusted Cluster. Just my $.02. I know some Sun ppl on this list will disagree, but if they worked in a HP env maybe not :) Gene [EMAIL PROTECTED] 02/06/02 08:23PM Hi... I am looking for inputs from anybody who has experience in both MC/Serviceguard (MC/S) as well as Sun cluster implementation. If a DBA/SA team has lots of experience in implementing MC/Serviceguard clusters on HP and trying to move to SunClusters for HA solution ... a) What are the common things between MC/S and and Sun clusters (ex: about 5 minute fail-over time, fixed IP address, 2 or more nodes in a cluster, disk sharing etc..) b) Any differences between these... What are the things to watch out for (assuming the team already knows in and out of MC/Serviceguard) Thank you in advance... Rama -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rama Malladi INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Gene Sais INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: MC/Serviceguard vs Sun Clusters
On Thu, Feb 07, 2002 at 06:00:04AM -0800, [EMAIL PROTECTED] wrote: Consequently we abandoned ServiceGuard are going to standby databases instead. Dick Goulet I have been very pleased with standby stability, but find it a little awkward wrt maintenance as availability demands increase. I have not done AR yet, but hope to test this soon. Has anyone got warm and fuzzy with this technology? === Ray Stell [EMAIL PROTECTED] (540) 231-4109 KE4TJC28^D -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Ray Stell INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: MC/Serviceguard vs Sun Clusters
Actually, the heartbeat has been the biggest pain in the but of ServiceGuard. Its caused 99.99% of the failures. Granted once it was a failed network card. All in all though, I have been pretty happy with ServiceGuard. And ours is dedicated and protected:-) -Original Message- [EMAIL PROTECTED] Sent: Thursday, February 07, 2002 6:00 AM To: Multiple recipients of list ORACLE-L Rama, We did the MC/ServiceGuard thing some years ago. Worked well, after our SA rebuilt the servers from ground 0. Adding it on to an existing server is ok, but somewhat unstable. One item to be VERY careful of. The heartbeat cable, in our case a ethernet thin line, needs to be on a dedicated link, preferably a purchased vs. custom made cable, and protected from accidental disconnect. Ours got disconnected by a contractor working in the computer room because it was in his way. The resulting reboot of the backup server and forcible takeover of the disk farm absolutely destroyed the database. We had more file corruption than I ever could have imagined. Consequently we abandoned ServiceGuard are going to standby databases instead. Dick Goulet Reply Separator Author: Rama Malladi [EMAIL PROTECTED] Date: 2/6/2002 5:23 PM Hi... I am looking for inputs from anybody who has experience in both MC/Serviceguard (MC/S) as well as Sun cluster implementation. If a DBA/SA team has lots of experience in implementing MC/Serviceguard clusters on HP and trying to move to SunClusters for HA solution ... a) What are the common things between MC/S and and Sun clusters (ex: about 5 minute fail-over time, fixed IP address, 2 or more nodes in a cluster, disk sharing etc..) b) Any differences between these... What are the things to watch out for (assuming the team already knows in and out of MC/Serviceguard) Thank you in advance... Rama -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rama Malladi INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Kimberly Smith INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: MC/Serviceguard vs Sun Clusters
On Thu, Feb 07, 2002 at 07:18:34AM -0800, Kimberly Smith wrote: Actually, the heartbeat has been the biggest pain in the but of ServiceGuard. butt n. The larger or thicker end of an object: the butt of a rifle. My associates tell me I am an expert in this area... === Ray Stell [EMAIL PROTECTED] (540) 231-4109 KE4TJC28^D -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Ray Stell INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: MC/Serviceguard vs Sun Clusters
I'll second this. I worked with Sun a few years ago at another place. Here, we're an HP shop with 2 OPS clusters (2 node and 4 node). We finally moved our straggler Compaq cluster to HP a couple of months ago. I'll caveat by saying that we do have a couple of well seasoned SAs and DBAs so it's all been pretty easy to setup and we've found it to be very reliable. hth, ~Ruth Beware of the lollipop of mediocrity. One lick and you'll suck forever. -Original Message- From: Gene Sais [SMTP:[EMAIL PROTECTED]] Sent: Thursday, February 07, 2002 8:18 AM To: Multiple recipients of list ORACLE-L Subject: Re: MC/Serviceguard vs Sun Clusters Stay with HP Serviceguard! From experience, I rank HA solutions in this order: 1. HP serviceguard - easy and it works. 2. IBM HACMP - do it the way IBM wants it and it works. 3. Sun Cluster - get a high paid consultant to set it up and have them come back to change it :) Better yet, go with Veritas Trusted Cluster. Just my $.02. I know some Sun ppl on this list will disagree, but if they worked in a HP env maybe not :) Gene [EMAIL PROTECTED] 02/06/02 08:23PM Hi... I am looking for inputs from anybody who has experience in both MC/Serviceguard (MC/S) as well as Sun cluster implementation. If a DBA/SA team has lots of experience in implementing MC/Serviceguard clusters on HP and trying to move to SunClusters for HA solution ... a) What are the common things between MC/S and and Sun clusters (ex: about 5 minute fail-over time, fixed IP address, 2 or more nodes in a cluster, disk sharing etc..) b) Any differences between these... What are the things to watch out for (assuming the team already knows in and out of MC/Serviceguard) Thank you in advance... Rama -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rama Malladi INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Gene Sais INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Dejam, Ruth INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: MC/Serviceguard vs Sun Clusters
Title: RE: MC/Serviceguard vs Sun Clusters Were you only running a single heartbeat connection? Matt Adams - GE Appliances - [EMAIL PROTECTED] Doing linear scans over an associative array is like trying to club someone to death with a loaded Uzi. - Larry Wall (creator of Perl) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 07, 2002 9:00 AM To: Multiple recipients of list ORACLE-L Subject: Re:MC/Serviceguard vs Sun Clusters Rama, We did the MC/ServiceGuard thing some years ago. Worked well, after our SA rebuilt the servers from ground 0. Adding it on to an existing server is ok, but somewhat unstable. One item to be VERY careful of. The heartbeat cable, in our case a ethernet thin line, needs to be on a dedicated link, preferably a purchased vs. custom made cable, and protected from accidental disconnect. Ours got disconnected by a contractor working in the computer room because it was in his way. The resulting reboot of the backup server and forcible takeover of the disk farm absolutely destroyed the database. We had more file corruption than I ever could have imagined. Consequently we abandoned ServiceGuard are going to standby databases instead. Dick Goulet Reply Separator Author: Rama Malladi [EMAIL PROTECTED] Date: 2/6/2002 5:23 PM Hi... I am looking for inputs from anybody who has experience in both MC/Serviceguard (MC/S) as well as Sun cluster implementation. If a DBA/SA team has lots of experience in implementing MC/Serviceguard clusters on HP and trying to move to SunClusters for HA solution ... a) What are the common things between MC/S and and Sun clusters (ex: about 5 minute fail-over time, fixed IP address, 2 or more nodes in a cluster, disk sharing etc..) b) Any differences between these... What are the things to watch out for (assuming the team already knows in and out of MC/Serviceguard) Thank you in advance... Rama -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rama Malladi INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: MC/Serviceguard vs Sun Clusters
I'm amazed that failover doesn't seem to be any more robust or reliable than the first time I worked with it 8 years ago, on some platforms anyway. Jared On Thursday 07 February 2002 08:55, Dejam, Ruth wrote: I'll second this. I worked with Sun a few years ago at another place. Here, we're an HP shop with 2 OPS clusters (2 node and 4 node). We finally moved our straggler Compaq cluster to HP a couple of months ago. I'll caveat by saying that we do have a couple of well seasoned SAs and DBAs so it's all been pretty easy to setup and we've found it to be very reliable. hth, ~Ruth Beware of the lollipop of mediocrity. One lick and you'll suck forever. -Original Message- From: Gene Sais [SMTP:[EMAIL PROTECTED]] Sent: Thursday, February 07, 2002 8:18 AM To: Multiple recipients of list ORACLE-L Subject:Re: MC/Serviceguard vs Sun Clusters Stay with HP Serviceguard! From experience, I rank HA solutions in this order: 1. HP serviceguard - easy and it works. 2. IBM HACMP - do it the way IBM wants it and it works. 3. Sun Cluster - get a high paid consultant to set it up and have them come back to change it :) Better yet, go with Veritas Trusted Cluster. Just my $.02. I know some Sun ppl on this list will disagree, but if they worked in a HP env maybe not :) Gene [EMAIL PROTECTED] 02/06/02 08:23PM Hi... I am looking for inputs from anybody who has experience in both MC/Serviceguard (MC/S) as well as Sun cluster implementation. If a DBA/SA team has lots of experience in implementing MC/Serviceguard clusters on HP and trying to move to SunClusters for HA solution ... a) What are the common things between MC/S and and Sun clusters (ex: about 5 minute fail-over time, fixed IP address, 2 or more nodes in a cluster, disk sharing etc..) b) Any differences between these... What are the things to watch out for (assuming the team already knows in and out of MC/Serviceguard) Thank you in advance... Rama -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rama Malladi INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Gene Sais INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jared Still INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: MC/Serviceguard vs Sun Clusters
Could you explain the file corruption in a little more detail? I cannot imagine how failover would cause file corruption, much less how a properly configured running Oracle instance can get 'absolutely destroyed'. Isn't that the purpose of having Oracle over say a nonlogged, singlethreaded, cheapo db engine...? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 07, 2002 9:00 AM To: Multiple recipients of list ORACLE-L Subject: Re:MC/Serviceguard vs Sun Clusters Rama, We did the MC/ServiceGuard thing some years ago. Worked well, after our SA rebuilt the servers from ground 0. Adding it on to an existing server is ok, but somewhat unstable. One item to be VERY careful of. The heartbeat cable, in our case a ethernet thin line, needs to be on a dedicated link, preferably a purchased vs. custom made cable, and protected from accidental disconnect. Ours got disconnected by a contractor working in the computer room because it was in his way. The resulting reboot of the backup server and forcible takeover of the disk farm absolutely destroyed the database. We had more file corruption than I ever could have imagined. Consequently we abandoned ServiceGuard are going to standby databases instead. Dick Goulet Reply Separator Author: Rama Malladi [EMAIL PROTECTED] Date: 2/6/2002 5:23 PM Hi... I am looking for inputs from anybody who has experience in both MC/Serviceguard (MC/S) as well as Sun cluster implementation. If a DBA/SA team has lots of experience in implementing MC/Serviceguard clusters on HP and trying to move to SunClusters for HA solution ... a) What are the common things between MC/S and and Sun clusters (ex: about 5 minute fail-over time, fixed IP address, 2 or more nodes in a cluster, disk sharing etc..) b) Any differences between these... What are the things to watch out for (assuming the team already knows in and out of MC/Serviceguard) Thank you in advance... Rama -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rama Malladi INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Glenn Travis INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: MC/Serviceguard vs Sun Clusters
We have had file corruption before but never with Oracle. There is a product we use here that uses a priority database that does not do a two phase commit. When the disks fail over during the middle of a write it causes a huge issues. It took the vendor a week with a lot of our assistance to get one of the fab machines back up again. Very costly. They claim that their product is suitable for ServiceGuard as well. NOTE: they are now switching to Oracle as their database. Just be real careful what you put under ServiceGuard. -Original Message- Travis Sent: Thursday, February 07, 2002 1:07 PM To: Multiple recipients of list ORACLE-L Could you explain the file corruption in a little more detail? I cannot imagine how failover would cause file corruption, much less how a properly configured running Oracle instance can get 'absolutely destroyed'. Isn't that the purpose of having Oracle over say a nonlogged, singlethreaded, cheapo db engine...? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 07, 2002 9:00 AM To: Multiple recipients of list ORACLE-L Subject: Re:MC/Serviceguard vs Sun Clusters Rama, We did the MC/ServiceGuard thing some years ago. Worked well, after our SA rebuilt the servers from ground 0. Adding it on to an existing server is ok, but somewhat unstable. One item to be VERY careful of. The heartbeat cable, in our case a ethernet thin line, needs to be on a dedicated link, preferably a purchased vs. custom made cable, and protected from accidental disconnect. Ours got disconnected by a contractor working in the computer room because it was in his way. The resulting reboot of the backup server and forcible takeover of the disk farm absolutely destroyed the database. We had more file corruption than I ever could have imagined. Consequently we abandoned ServiceGuard are going to standby databases instead. Dick Goulet Reply Separator Author: Rama Malladi [EMAIL PROTECTED] Date: 2/6/2002 5:23 PM Hi... I am looking for inputs from anybody who has experience in both MC/Serviceguard (MC/S) as well as Sun cluster implementation. If a DBA/SA team has lots of experience in implementing MC/Serviceguard clusters on HP and trying to move to SunClusters for HA solution ... a) What are the common things between MC/S and and Sun clusters (ex: about 5 minute fail-over time, fixed IP address, 2 or more nodes in a cluster, disk sharing etc..) b) Any differences between these... What are the things to watch out for (assuming the team already knows in and out of MC/Serviceguard) Thank you in advance... Rama -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rama Malladi INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Glenn Travis INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Kimberly Smith INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists
