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1
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0answers
51 views

High Availability/failsafe two different locations

I am wondering if someone could help with the setup that does not seem so difficult. I am just beginning with the multi-server setup. I apologize if my questions are dumb. I have two debian servers ...
0
votes
0answers
139 views

CentOs 6.5 GFS2 DRBD SAMBA CTDB : g_lock_force_unlock: Could not store record: NT_STATUS_UNSUCCESSFUL

My SAMBA cluster is unreliable, I noticed that from Windows desktop (on some occasion works fine but it is not reliable), on Ubuntu I'm getting this error (same is keep repeating in the log): ...
0
votes
0answers
123 views

ccs_tool addnode and addfence error invalid option — 'C'

I'm installing GFS2 on centos 6 with SAN and fiber channel. I followed this link: ...
0
votes
0answers
103 views

How to tune gfs2 to get better performance

We are testing gfs2 file system with storage partition on 2 node cluster. I added line into cluster.conf to avoid default 100 locks/sec value for getting more performance. But i still get less ...
1
vote
1answer
43 views

shared file system with rhcs

We have 2 node cluster which is attached with storage to share single parition between both cluster node. So for that we configure rhcs with gfs2. We aaded resources with gfs and ip address. So when ...
2
votes
1answer
445 views

GFS2 over DRBD automount

I have 2 nodes Proxmox cluster. For KVM images I use DRBD device with GFS2 on it. Everything works fine except GFS2 automounting after server restart. I put in fstab: /dev/drbd0 /cluster/drbd0 gfs2 ...
5
votes
1answer
589 views

Linux Filesystem options for iSCSI shared storage

I am trying to determine my 'best choice' for a filesystem to use for a shared storage device that will be mounted via iSCSI across an indeterminate number of servers. Setup: 27TB Synology RS2212+ ...
5
votes
1answer
1k views

RHCS: GFS2 in A/A cluster with common storage. Configuring GFS with rgmanager

I'm configuring a two node A/A cluster with a common storage attached via iSCSI, which uses GFS2 on top of clustered LVM. So far I have prepared a simple configuration, but am not sure which is the ...
4
votes
4answers
2k views

Slow NFS and GFS2 performance

Recently I've designed and configured a 4 node cluster for a webapp that does lots of file handling. The cluster have been broken down into 2 main roles, webserver and storage. Each role is replicated ...
0
votes
1answer
189 views

Diagnosing SAN connectivity issues (RHEL5)

We are currently utilizing GFS2 to share a SAN LUN between 3 servers. However due to a feature problem with vendor software we are using, we currently have the volume unmounted on two of the boxes, ...
1
vote
1answer
555 views

NFS on top of GFS2 - does it work?

We're currently using a NoSQL derivative called Splunk to receive our data. The software supports something called "search head pooling" in which the job-dispatching engine is housed on several ...
2
votes
0answers
194 views

How to make background flushing more aggressive

I've got a system that is doing a continuous steady stream of writes to GFS2 filesystems, and what happens is that the cache builds up to vm.dirty_ratio and then load skyrockets during a synchronous ...
0
votes
2answers
2k views

Configuring RHEL6.1 GFS cluster

I need to configure 3-node cluster with shared GFS2 filesystem. GFS2 needed as common Documentroot for apache behind the balancer. Can you suggest some guide on how to configure ...
1
vote
0answers
512 views

OCFS2/GFS2 dlm_join_lockspace no fence domain

Ripping my hair out on a new Pacemaker/cman/(OCFS2|GFS) config. I can't use the Pacemaker integration with OCFS2, since the Fedora team, in their wisdom, decided to remove the .pcmk. Supposedly, I ...
1
vote
1answer
372 views

Permission denied message when starting gfs2

Can anyone please explain why I get this permission denied error? I try starting the script and it fails with a permission denied message. So I create a copy of it and run that instead and that works. ...
1
vote
2answers
647 views

ubuntu cluster - so close but so far

Here's the set up: Two Ubuntu 9.10 servers - LAMP environment (not really an option to switch OS) One MD3000i with iscsi connection Here's what I'd like to do: Have both server see the files ...
2
votes
1answer
768 views

How Does The Linux Disk Cache Work With iSCSI and GFS2?

I'm planning to share a GFS2 filesystem via iSCSI to my web servers. Are the files read by my web servers cached locally using the linux disk cache stored in memory or are they only cached on the ...
2
votes
2answers
1k views

Can I use ext3 as a shared fs if I add a lock manager?

I need a cluster filesystem for an iSCSI device. The problem is that the servers to which it is connected generate datafiles which must be read by every other servers. Except for the writing and ...