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2nodes cluster 變成3 nodes 的步驟?

2nodes cluster 變成3 nodes 的步驟?

我想加入一個node 進來

請問我的步驟該如何作

1)cluster_expected_votes最好設成幾票

2)vote disk 要拿掉還是設成0票

請問正確的步驟該是如何?

6 回覆

2nodes cluster 變成3 nodes 的步驟?

Hello Joey:



The TruCluster Server Cluster Administration

manual is a good point for reference, especially,

from page 84 to 100, which are dedicated to Quorom,

On page 99 to 100, there is one table that is for 2 to 4 members relationshiop and quorum



Which this is helpful for you.

PDF file link is as follow:

http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_ACRO_DUX/ARHGYETE.PDF



Best Regards

Danny



2nodes cluster 變成3 nodes 的步驟?

3 1 1 1 --- 0

4 1 1 1 --- 1

按照書上的寫法,tru64 似乎並不允許3 nodes cluster 死掉兩台

所以在3 nodes 加上quorum disk ,expected 就變成4了,所以加了quorum disk根本也沒效果

請問我可以修改expect votes 嗎?,還是這是rule不能改的

例如





3 1 1 1 --- 1(這樣一來,即使死了兩個Nodes,quorum_votes還有兩票,這樣我的cluster還是好好的)

2nodes cluster 變成3 nodes 的步驟?

Hi Joey,



> 按照書上的寫法,tru64 似乎並不允許3 nodes cluster 死掉兩台

It should be encountered cluster partition and needs to follow the previous .pdf update. See

4.10 Troubleshooting Unfortunate Expected Vote and Node Vote Settings



> 請問我可以修改expect votes 嗎?,還是這是rule不能改的.

Please change it while cluster node exist on an unstable status.



> 3 1 1 1 --- 1(這樣一來,即使死了兩個Nodes,quorum_votes還有兩票,這樣我的cluster還是好好的)

But it needs to get 4 votes if quorum setting in 3 nodes cluster. See

http://h50163.www5.hp.com/TCForum/Others/UpLoadFiles/c47b1d15-c298-475d-b04d-fc3323bbeec3.doc



Best regards,

Richard.

2nodes cluster 變成3 nodes 的步驟?

那如果是我自己停掉兩個NODES呢?

是不是在停NODES要手動修改一些東西呢

而不能隨便就關掉兩台

如你上述的

"change it while cluster node exist on an unstable status."

2nodes cluster 變成3 nodes 的步驟?

Hi Joey,



> 是不是在停NODES要手動修改一些東西呢? 而不能隨便就關掉兩台?

Yes. Please using the command "clu_quorum" to maintain the vote on member #num to 0 or 1 and reserved

one disk for quorum disk usage.



All of member and quorum disk's vote can set to 0 or 1

by your requirement via "clu_quorum". Otherwise, the chapter 4.10 for solving boot fail while lost one .. or more votes.



Best regards,

Richard.

2nodes cluster 變成3 nodes 的步驟?

Hi Joey,



> and reserved one disk for quorum disk usage.

As the previous table recommendation. Don't setup a quorum disk on 3 nodes cluster.



But reserved one disk for quorum disk to joining this cluster configuration if necessary that is avoiding as your described.



Best regards,

Richard.