Re: [Linux-cluster] Oracle Shared-Nothing

2008-05-13 Thread Stephen Nelson-Smith
Hi... On Mon, May 12, 2008 at 6:12 PM, Lon Hohberger [EMAIL PROTECTED] wrote: On Mon, 2008-05-12 at 11:14 +0100, Stephen Nelson-Smith wrote: Hi, I want to implement a shared-nothing active/passive failover cluster for Oracle 10g. RAC is out of budget. I'm looking at drbd +

Re: [Linux-cluster] What is the order of processing a lock request?

2008-05-13 Thread Christine Caulfield
Ja S wrote: Hi, All: When an application on a cluster node A needs to access a file on a SAN storage, how DLM process the lock request? Should DLM firstly determine whether there already exists a lock resource mapped to the file, by doing the following things in the order 1) looking

Re: [Linux-cluster] What is the order of processing a lock request?

2008-05-13 Thread Ja S
--- Christine Caulfield [EMAIL PROTECTED] wrote: Ja S wrote: Hi, All: When an application on a cluster node A needs to access a file on a SAN storage, how DLM process the lock request? Should DLM firstly determine whether there already exists a lock resource mapped to the

Re: [Linux-cluster] What is the order of processing a lock request?

2008-05-13 Thread Christine Caulfield
Ja S wrote: --- Christine Caulfield [EMAIL PROTECTED] wrote: Ja S wrote: Hi, All: When an application on a cluster node A needs to access a file on a SAN storage, how DLM process the lock request? Should DLM firstly determine whether there already exists a lock resource mapped to

Re: [Linux-cluster] What is the order of processing a lock request?

2008-05-13 Thread Ja S
--- Christine Caulfield [EMAIL PROTECTED] wrote: Ja S wrote: --- Christine Caulfield [EMAIL PROTECTED] wrote: Ja S wrote: Hi, All: When an application on a cluster node A needs to access a file on a SAN storage, how DLM process the lock request? Should DLM firstly

Re: [Linux-cluster] What is the order of processing a lock request?

2008-05-13 Thread Christine Caulfield
Ja S wrote: --- Christine Caulfield [EMAIL PROTECTED] wrote: Ja S wrote: --- Christine Caulfield [EMAIL PROTECTED] wrote: Ja S wrote: Hi, All: When an application on a cluster node A needs to access a file on a SAN storage, how DLM process the lock request? Should DLM firstly

Re: [Linux-cluster] What is the order of processing a lock request?

2008-05-13 Thread Ja S
--- Christine Caulfield [EMAIL PROTECTED] wrote: Ja S wrote: --- Christine Caulfield [EMAIL PROTECTED] wrote: Ja S wrote: --- Christine Caulfield [EMAIL PROTECTED] wrote: Ja S wrote: Hi, All: When an application on a cluster node A needs to access a file on a SAN

Re: [Linux-cluster] What is the order of processing a lock request?

2008-05-13 Thread Oliveiros Cristina
Hello, Christine and Ja S. I've been following this thread, because I need, like Ja, a detailed knowledge of the DLM inner workings. Your explanations were detailed and clear, Christine, but, just for the sake of having it documented, do you know where I can download a white paper or article

[Linux-cluster] Complete cluster.conf Schema Description

2008-05-13 Thread Kelsey Hightower
Hello, I have been searching the web for weeks. I am trying to get the complete cluster.conf schema description. I have found a link that describes most of the options but it seems to omit the resources, services, and anything related to configuring failover services.

Re: [Linux-cluster] Why GFS is so slow? What it is waiting for?

2008-05-13 Thread Wendy Cheng
Ja S wrote: Hi, Wendy: Thanks for your so prompt and kind explanation. It is very helpful. According to your comments, I did another test. See below: # stat abc/ File: `abc/' Size: 8192Blocks: 6024 IO Block: 4096 directory Device: fc00h/64512dInode: 1065226

[Linux-cluster] Locks reported by gfs_tool lockdump does not match that presented in dlm_locks. Any reason??

2008-05-13 Thread Ja S
Hi, All: For a given lock space, at the same time, I saved a copy of the output of “gfs_tool lockdump” as “gfs_locks” and a copy of dlm_locks. Then I checked the locks presents in the two saved files. I realized that the number of locks in gfs_locks is not the same as the locks presented in

Re: [Linux-cluster] Locks reported by gfs_tool lockdump does not match that presented in dlm_locks. Any reason??

2008-05-13 Thread Wendy Cheng
Ja S wrote: Hi, All: For a given lock space, at the same time, I saved a copy of the output of “gfs_tool lockdump” as “gfs_locks” and a copy of dlm_locks. Then I checked the locks presents in the two saved files. I realized that the number of locks in gfs_locks is not the same as the locks

Re: [Linux-cluster] Locks reported by gfs_tool lockdump does not match that presented in dlm_locks. Any reason??

2008-05-13 Thread Ja S
--- Wendy Cheng [EMAIL PROTECTED] wrote: Ja S wrote: Hi, All: For a given lock space, at the same time, I saved a copy of the output of “gfs_tool lockdump?as “gfs_locks?and a copy of dlm_locks. Then I checked the locks presents in the two saved files. I realized that the