10 More Discussions You Might Find Interesting
1. Red Hat
Hi All;
I try to build a Redhat Cluster (CentOS 6) on vmware. But each node sees the other down like:
# clustat
Cluster Status for mycluster @ Wed Apr 8 11:01:38 2015
Member Status: Quorate
Member Name ID Status
------ ---- ... (1 Reply)
Discussion started by: Meacham12
1 Replies
2. Red Hat
Hi All;
I try to build a Redhat Cluster (CentOS 6) on vmware. But each node sees the other down like:
# clustat
Cluster Status for mycluster @ Wed Apr 8 11:01:38 2015
Member Status: Quorate
Member Name ID Status
------ ---- ... (0 Replies)
Discussion started by: Meacham12
0 Replies
3. AIX
Hi,
A customer I'm supporting once upon a time broke their 2 cluster node database servers so they could use the 2nd standby node for something else. Now sometime later they want to bring the 2nd node back into the cluster for resilance. Problem is there are now 3 VG's that have been set-up... (1 Reply)
Discussion started by: elcounto
1 Replies
4. Red Hat
Hi all.
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Could you please let me know... (1 Reply)
Discussion started by: admin_xor
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5. Solaris
Hi
we have 2 solaris 10 servers in veritas cluster.
also we have oracle cluster on the database end.
now we have a requirement to reboot both the servers as it has been running for more than a year.
can any one tell what is the procedure to bring down the cluster services in both the nodes... (7 Replies)
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6. Solaris
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Discussion started by: spitfire2011
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7. Red Hat
Hi all, i have 3 nodes cluster (Centos 5 cluster suit) with out quorum disk,
node vote = 1,
the value of a quorum = 2,
when 2 nodes going offline, cluster services are destoys.
How i can save the cluster and all services(move all services to one alive node)
with out quorum disk when other... (3 Replies)
Discussion started by: Flomaster
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8. Emergency UNIX and Linux Support
hello Gurus,
My current set up is 3 to 1 Cluster (SUN Cluster 3.2) running oracle database. Task is to reboot the servers. My query is about the procedure to do the same.
My understanding is suspend the databases to avoid switchover. Then execute the command scshutdown to down the cluster... (4 Replies)
Discussion started by: EmbedUX
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9. UNIX for Dummies Questions & Answers
Hi ! I have a simple setup of 2 PC (with linux Red-Hat) where the first PC is the primary machine and the second the backup. I use DRBD for data replication and Red-Hat cluster suite for HA (High Availability). I have tested both.
Now I NEED a COMMON IP ADDRESS (or Master/unique IP address) for... (3 Replies)
Discussion started by: Danny Gilbert
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10. High Performance Computing
Hi ! I have a simple setup of 2 PC (with linux Red-Hat) where the first PC is the primary machine and the second the backup. I use DRBD for data replication and Red-Hat cluster suite for HA (High Availability). I have tested both.
Now I NEED a COMMON IP ADDRESS (or Master/unique IP address) for... (0 Replies)
Discussion started by: Danny Gilbert
0 Replies
o2info(1) OCFS2 Manual Pages o2info(1)
NAME
o2info - Dump OCFS2 file system information on disk.
SYNOPSIS
o2info [-C|--cluster-coherent] [--fs-features] [--volinfo] [--mkfs] <device or file>
DESCRIPTION
o2info is designed to be an information tool, to display OCFS2 file system information on disk. Its main goal on one hand, is to provide a
tool to display fs info in a comprehensive way and providing the information which may be missing in debugfs.ocfs and tunefs.ocfs2 such as
global bitmap free space fragmentation and free inode info for each slot, on the other hand, it also aims to become a info tool(not an
administration one), which therefore allows all users who may have no read privilege on the underlying device to use the utility. In prac-
tice, 'o2info /path/to/file/on/ocfs2/vol' use a new OCFS2_IOC_INFO ioctl to get info from fs for a mounted case. For a privileged user(e.g,
root), the same info however, can also be accessed by 'o2info /dev/sdxN' to direcly manipulate the raw device.
OPTIONS
-C, --cluster-coherent
Enable cluster (in)coherency for mounted case, means it will attempt to acquire a global PR lock when querying info from a cluster
filesystem, which may degrade the performance, default is none cluster-coherency.
--fs-features
List all compat, incompat and ro-compat fs features on OCFS2 filesystem.
--volinfo
Dump basic volume information, such as blocksize, clustersize, volume label and UUID etc.
--mkfs Dump an original format of mkfs.ocfs's arguments, importantly, which can be used directly as a fresh mkfs retry: #mkfs.ocfs2
"$(o2info --mkfs /dev/name/or/path/of/file)" /dev/sdaX
-V, --version
Show version and exit.
-h, --help
Display help and exit.
EXAMPLES
[oracle@node1 ~]# o2info --volinfo /storage/testfile # For none-privileged users.
[root@node1 ~]# o2info --volinfo /dev/sda1
Label: ocfs2-volume
UUID: 976D8E630B3A4F1F95497311A92901FC
Block Size: 4096
Cluster Size: 4096
Node Slots: 4
Features: backup-super strict-journal-super sparse inline-data xattr
Features: unwritten
SEE ALSO
debugfs.ocfs2(8) tunefs.ocfs2(8)
AUTHORS
Oracle Corporation
COPYRIGHT
Copyright (C) 2010 Oracle. All rights reserved.
Version 1.6.4 October 2010 o2info(1)
