GPFS quroum with tie-breaker disks


 
Thread Tools Search this Thread
Operating Systems AIX GPFS quroum with tie-breaker disks
# 1  
Old 04-25-2012
GPFS quroum with tie-breaker disks

I read from gpfs implementation guide about node quorum with tie-breaker disks:

Quote:
Node quorum with tiebreaker disks: Node quorum with tiebreaker disks allows you to run with as little as one quorum node available as long as you have access to a majority of the quorum disks
In my testing environment, I have 4 AIX as quorum nodes, each node connected to 3 GPFS disks. All the 3 disks are configured to be tie-breaker disks.
Then, I disconnect the network of 2 nodes, and then all gpfs file systems failed.

According to the quoted text, the file system should work as long as only 1 quorum is available. Can anyone kindly help to teach me the behavior of node quorum with tie-breaker disks?

Thanks!
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. AIX

How to get rid of GPFS ?

Hi We are doing the migration of DMX3 disks to DMX4 disks using migratepv. We are not using GPFS but we have gpfs disks present in the server. Can anyone advise how to get rid of GPFS in both the servers cbspsrdb01 and cbspsrdb02. I will do migratepv for the other disks present in the servers... (2 Replies)
Discussion started by: newtoaixos
2 Replies

2. AIX

GPFS 3.3

Dear all for the last few days i was searching in IBM web site for GPFS 3.3 to upgrade my gpfs from 3.2 to 3.3 and i did not find the download link for the GPFS 3.3 in IBM website please can anyone give me the link . (4 Replies)
Discussion started by: thecobra151
4 Replies

3. AIX

GPFS

Hello I am interested if anybody uses GPFS and is it must to have GPFS in the POWERHA environment? and can GPFS work as cluster active active or active passive thanks in advance (0 Replies)
Discussion started by: Vit0_Corleone
0 Replies

4. Shell Programming and Scripting

How to remove line breaker

Hi, unix Gurus, I have a requriement as following, source: 123, abc , bbccdd cde efg 124, acd, abcdeeexpected result 123, abc cde efg, bbccdd 124, acd, abcdeebasically, I need remove column 2 link breaker, because right now, in source the column 2 contains 3 line in a row.... (2 Replies)
Discussion started by: ken002
2 Replies

5. AIX

How to configure new hdisk such that it has a gpfs fs on it and is added to a running gpfs cluster?

Hi, I have a running GPFS cluster. For one every mountpoint that i have created i have one disk assigned to it. That disk is converted to an NSD and is a part of the GPFS Cluster. Now i have a new disk and there is this requirement to add it to the GPFS cluster, such that this becomes an NSD.... (1 Reply)
Discussion started by: aixromeo
1 Replies

6. AIX

AIX GPFS Setup

:cool:Hello, can someone guide me how to create a GPFS filesystem, I've read a couple of redbooks however certain things are still not certain, like if you require to download files or licenses... any help would be appreciated! (2 Replies)
Discussion started by: ollie01
2 Replies

7. AIX

SSD with GPFS ?

Hi, does anyone here happen to know if I could run GLVM or GPFS on Solid State Disks? I have a high volume / high transaction Sybase HACMP cluster currently setup with SRDF to the DR datacentre. My business now considers to move everything to SSD storage but we still need to get the data to... (0 Replies)
Discussion started by: zxmaus
0 Replies

8. AIX

two gpfs in one node issue

dear all can i create two gpfs in one node each gpfs is pointing to single hdiskpower (1 Reply)
Discussion started by: thecobra151
1 Replies

9. UNIX for Advanced & Expert Users

UUCP on Linux (Pink Tie )

Please help I am having difficulty getting uucp to send or receive a file from a remote site. The remote site settings are correct as they have been tested and tried on other systems. When I try and send a file the modem dials and connects to the remote site uulog shows that the login is... (3 Replies)
Discussion started by: casioman
3 Replies
Login or Register to Ask a Question
scconf_quorum_dev_netapp_nas(1M)			  System Administration Commands			  scconf_quorum_dev_netapp_nas(1M)

NAME
scconf_quorum_dev_netapp_nas - add and remove shared Network Appliance network-attached storage (NAS) quorum devices and change various NAS cluster quorum configuration properties or states. SYNOPSIS
scconf {-a|-c|-r} -q name=devicename otheroptions DESCRIPTION
Note - Beginning with the Sun Cluster 3.2 release, Sun Cluster software includes an object-oriented command set. Although Sun Cluster software still supports the original command set, Sun Cluster procedural documentation uses only the object-oriented command set. For more infor- mation about the object-oriented command set, see the Intro(1CL) man page. A Network Appliance NAS device can be configured as a quorum device for Sun Cluster. The NAS configuration information consists of: o a device name, which must be unique across quorum devices o a filer name, which defaults to the device name if not specified o a LUN ID, which defaults to 0 if not specified To provide support for NAS devices as quorum devices, the administrator must install the quorum device support module provided by Network Appliance. If this module is not available, scconfprevents the addition of the quorum device. See Sun Cluster With Network-Attached Storage Devices Manual for Solaris OS for instructions about obtaining the support module. Additionally, the iSCSI license must be valid for the Network Appliance device. OPTIONS
The following options can be used for NAS quorum devices. See scconf(1M) for the list of supported generic options. See scconf_quo- rum_dev_netapp_nas(1M) for options that are specific to shared disk quorum devices. The add and remove forms of the command are used to add and remove NAS quorum devices to or from the configuration. The change form of the command is used for changing various properties of cluster quorum configuration. Before you add a quorum device, you must set up and configure the device and the logical unit number (LUN) on the device to be configured as a quorum device. For detailed procedures, see your Network Appliance documentation. For Sun Cluster requirements of device setup, see Sun Cluster With Network-Attached Storage Devices Manual for Solaris OS. After the quorum device is added, you cannot change the type. Add a NAS quorum device: -q -a name=devicename,type=netapp_nas[,filer=filer-name][,lun_id=0] Change a NAS quorum device's configuration: -q -c name=devicename,{maintstate | reset} Remove a NAS quorum device: -q -r name=devicename The -q option supports the following Network Appliance NAS-specific suboptions: filer=filer-name Specifies the name of the device on the network that you can use to access the NAS device when you are using rsh or telnet. lun_id=0 Specifies the LUN ID on the NAS device that will be a NAS quorum device. The LUN ID defaults to 0. When scconf is interrupted or fails while performing quorum-related operations, quorum configuration information can become inconsistent in the cluster configuration database. If an inconsistency occurs, either run the same scconf command again or run it with the reset option to reset the quorum information. EXAMPLES
Example 1 Adding Network Appliance NAS Quorum Devices The following scconf command adds the Network Appliance NAS quorum device qd1. -a -q name=qd1,type=netapp_nas,filer=nas1.sun.com,lun_id=0 Example 2 Removing Network Appliance NAS Quorum Devices The following scconf command removes the Network Appliance NAS quorum device qd1. -r -q name=qd1 ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWsczu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
Intro(1CL), clquorum(1CL), cluster(1CL), scconf(1M), scconf-quorum-dev-scsi(1M) Sun Cluster 3.2 10 Apr 2006 scconf_quorum_dev_netapp_nas(1M)