Comments on: Configure NFS Server Clustering with Pacemaker on CentOS 7 / RHEL 7

By: Aradi

Aradi — Sun, 20 Dec 2020 02:24:51 +0000

Hello .

Thanks for the article . it worked!! However ,i it did not work when i partitioned sdb1 as LVM volume

Best regards

By: Jay

Jay — Thu, 15 Oct 2020 20:09:50 +0000

How are these shared disks created for the fencing and the nfs share? “In this tutorial we are using a shared disk of size 1 GB (/dev/sdc) as a fencing device.” How is this shared disk created / mounted?

Isn’t the shared disk still a single point of failure?

By: Abdelkader

Abdelkader — Wed, 27 May 2020 22:06:20 +0000

In reply to Abdelkader. fixed with the installation of nfs-utils package.

By: Abdelkader

Abdelkader — Wed, 27 May 2020 21:43:12 +0000

Hi, thanks for the artical, i'm not able to mount the nfs using the vip: [root@ibm-cli ~]# mount 192.168.56.100:/ /mnt/nfsshare/ mount: wrong fs type, bad option, bad superblock on 192.168.56.100:/, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount. helper program) In some cases useful info is found in syslog - try dmesg | tail or so. Here is the result of lsblk, sdb1 as fencing device and sdc1 shared storage: [root@nfs1 ~]# lsblk -f NAME FSTYPE LABEL UUID MOUNTPOINT sda ├─sda1 xfs a13287c6-e902-4162-8c96-fdbc42d487a0 /boot └─sda2 LVM2_me M4KyTZ-1BPU-aWgE-8Um0-0gKf-lPDK-dDUdhS ├─centos-root xfs ddf9c038-feec-45e0-83fe-be5b62843499 / └─centos-swap swap 15a46aa8-2cf1-4c94-ae6b-982b7a38c249 [SWAP] sdb └─sdb1 xfs 800d010e-369c-4b33-a159-be1fab3064eb sdc └─sdc1 xfs 1ea91760-f20a-4358-a51a-7fce3760b72e sr0 iso9660 CentOS 7 x86_64 2019-09-11-18-50-31-00

By: kaushik sen

kaushik sen — Wed, 06 May 2020 18:34:19 +0000

hi ,

i`m looking for Rhel HA with KVM guest cluster ?

By: noni

noni — Sun, 01 Dec 2019 15:01:49 +0000

In reply to Tomas. Hi Tomas How exactly did you do that

By: Phuong Nguyen

Phuong Nguyen — Mon, 05 Aug 2019 20:29:44 +0000

Hi,
I tried, everything went smoothly except the last step – moving NFS shares on client.
I just could mount it on the nfs1.example.com, not another node.
The “ip a” show that the virtual floating IP was linked to the nfs1 node, not the nfs2 node, and can not ping from nfs2.
Any suggestions?

By: Omar

Omar — Thu, 01 Aug 2019 11:04:44 +0000

Hi Pradeep,
I have got this error after applying step4: Define Fencing device for each cluster node.
Error: Error: Agent ‘disk_fencing’ is not installed or does not provide valid metadata: Agent disk_fencing not found or does not support meta-data: Invalid argument (22)
Metadata query for stonith:disk_fencing failed: Input/output error

By: kaushik sen

kaushik sen — Fri, 12 Jul 2019 12:25:20 +0000

could you please share the possible documentation if i use dell idrac for fencing …….

By: kaushik sen

kaushik sen — Fri, 12 Jul 2019 06:16:00 +0000

perfect article for FC San storage and two physical Node Nfs cluster ,
i`ve completed one of my project with the help of this article

thank you 🙂