I am aware that this question has been asked before, but the question has remained unanswered and I am asking to see if there are any updates or best practice workarounds to the following:
I have two PowerEdge servers on the same lan configured entirely identical - hardware and software with Ubuntu 16.04 lts server and running NextCloud 10.0.1. apache 2 and APCu caching. For redundancy (ISO 22300) I would like these servers to fully sync users and data in between them.
How can this be achieved.
I would like to have a live mirror so I guess a master <-> master approach would be ideal, but I can do with a slave fail over system too.
@grouchysysadmin thanks for the guidance. I haven’t replied earlier as I was going through the GlusterFS documentation. In all honesty, being a newbie to Linux its a major learning curve for me and was hoping for a simpler solution, e.g. a NextCloud App installed on both servers which syncs users and data. Tried federation but have not succeeded in doing so. Besides, the nextcloud servers run on mysql and not on mariadb. Both servers reside on the same lan with 4 gigabit nics each bonded on 802.3ad Dynamic link aggregation running 4000mb/s each.
@grouchysysadmin Thanks for the encouragement. Would it be ideal to set-up a thrid server to act as the cluster controller using GlusterFS
@grouchysysadmin thanks for the guidance. I am going through it and the documentation on the GlusterFS.
My current setup:
Server 1 - Dell PowerEdge 2950 32gb RAM Ubuntu 16.04 lts running NextCloud 10.0.1., php7, mysql, apache 2 and APCu caching - data is stored dev/sdb1 (836gb) mounted on /media/win in data folder. Bonded IP 192.168.1.201
Server 2 - Dell PowerEdge R710 32gb RAM Ubuntu 16.04 lts running NextCloud 10.0.1., php7, mysql, apache 2 and APCu caching - data is stored dev/sdb1 (836gb) mounted on /media/win in data folder. Bonded IP 192.168.1.202
I would like to ask if I can I use the already existing storage folder (for storage and volume replication) being dev/sdb1 /media/win data (that is also mounted as an external local storage on both NextClouds) or do I need to create another storage area and replicated volume?
I ask this as I already have a large amount of data stored within the folder data mounted on dev/sdb1 /media/win
Server 1
borgf003@CLD01:~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 136.1G 0 disk ├─sda1 8:1 0 487M 0 part /boot ├─sda2 8:2 0 1K 0 part └─sda5 8:5 0 135.7G 0 part ├─CLD01--vg-root 252:0 0 103.6G 0 lvm / └─CLD01--vg-swap_1 252:1 0 32G 0 lvm [SWAP] sdb 8:16 0 836.6G 0 disk └─sdb1 8:17 0 836.6G 0 part /media/win sr0 11:0 1 1024M 0 rom sr1 11:1 1 1024M 0 rom borgf003@CLD01:~$
Server 2
borgf003@CLD02:~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 278.9G 0 disk ├─sda1 8:1 0 487M 0 part /boot ├─sda2 8:2 0 1K 0 part └─sda5 8:5 0 278.4G 0 part ├─CLD02--vg-root 252:0 0 274.4G 0 lvm / └─CLD02--vg-swap_1 252:1 0 4G 0 lvm [SWAP] sdb 8:16 0 836.6G 0 disk └─sdb1 8:17 0 836.6G 0 part /media/win sr0 11:0 1 1024M 0 rom borgf003@CLD02:~$
My installation so far on both servers
Installed GlusterFS
sudo apt-get install glusterfs-server
Checked GlusterFS Version
sudo glusterfs --version
...... glusterfs 3.7.6 built on Dec 25 2015 20:50:44 ......
Set the DNS /etc/hosts
# GlusterFS 192.168.1.201 gluster1 192.168.1.202 gluster2
Probed each server
Gluster 1
borgf003@CLD01:~$ sudo gluster peer probe gluster2 peer probe: success. Host gluster2 port 24007 already in peer list borgf003@CLD01:~$
Gluster2
borgf003@CLD02:~$ sudo gluster peer probe gluster1 peer probe: success. Host gluster1 port 24007 already in peer list borgf003@CLD02:~$
Checked peer status
Gluster1
borgf003@CLD01:~$ sudo gluster peer status Number of Peers: 1 Hostname: gluster2 Uuid: c259823a-5369-424a-a9b8-d9e67f926aed State: Accepted peer request (Disconnected) borgf003@CLD01:~$
Gluster 2
borgf003@CLD02:~$ sudo gluster peer status Number of Peers: 1 Hostname: gluster1 Uuid: 6f9545ac-3d49-4599-857a-17a22266945d State: Accepted peer request (Connected) borgf003@CLD02:~$
I have a (Disconnected) on Gluster 1 for gluster2 is this ok?
UFW
To make sure I added the following:
Gluster 1
sudo ufw allow from 192.168.1.202
Gluster 2
sudo ufw allow from 192.168.1.201
From now on, I need guidance if I can use my already configured data folders as above.
@grouchysysadmin I have posted the storage query on stackexchage GlusterFS here as I couldn’t find any reference to my query in the documentation.
wwe: close old topics
