similar to: Recommendations

Just installed CentOS 5.1 on VMware ESX and am attempting to play with the newly added tick_divider feature. It doesn't seem to be making any difference in the number of timer interrupts though. I set tick_divider=10 which should reduce the number of timer interrupts to 100. I wrote a nasty little scripts that queries /proc/interrupts every 1 second and still see an increase each second in

Hi, I've setup two server A + B (debian etch) with drbd + heartbeat in active/passive mode. If the primary server A fails, the shared storage is mounted on B, the virtual ip A-vip moves to the new primary B and samba is started by heartbeat. This works well, but I'm not sure which samba files should be identical on both server. Both have a dedicated machine account at the moment.

Hi guys, I'm looking at the possibility of running a pair of servers with Dovecot LDA/imap/pop3 using internal drives with DRBD and GFS (or other clustered FS) for the mail storage and ext3 for the root drive. I'm currently using maildrop for delivery and Dovecot imap/pop3 with the stores over NFS. I'm looking for better performance but still keeping the HA element I have now with

Not a CentOS specific question, although I am running grep on CentOS 4.3 but how would you grep out a series of lines in a file starting at a specific point. For instance, if I have a file named foo and I want to grep out the next 5 lines after the first and only instance of the string "bar" how could I pull that off? Thanks so much.

Hello, we are running CentOS 4.3 and the latest cluster suite packages from the csgfs yum repository for this release and need to delete a cluster member. According to the documentation we need to restart all cluster related services on all remaining nodes in the cluster after the node has been removed. This is a four node cluster so removing one node obviously degrades the cluster to three

Hi to all in the list, we are trying to do some tests lab for a large scale mail system having this requirements: - Scale to maybe 1million users(Only for testing). - Server side filters. - User quotas. - High concurrency. - High performance and High Availability. We plan to test this using RHEL5 and maybe RHEL6. As a storage we are going to use an HP EVA 8400 FC(8 GB/s) We defined this

hello folks! here's my situation: i've got two WTI RPB+ remote power switches (essentially a 5-port power strip which you can control via serial interface to make each of the ports switch on and off independently). they work fine; i plug a DB-9 cable into the back of my machine, fire up minicom, and i have full control. however, my eventual plan is to use these as fencing

Hi Everyone, We are setting up some READ-ONLY Samba servers, mounted from the same volume on a SAN. The files are media files to be played out by Windows Media Servers mounted on Win2003. Here are my thoughts about possible configurations, would someone mind letting me know what would the best option be? A) DNS Round Robin Have foo.domain resolve to 10.0.0.1, 10.0.0.2, 10.0.0.3. 10.0.0.1

Dear mailing list members, There was a branch about clusters, but I have a certain task. There are two servers with CentOS 5.5 installed. The servers are working with Zabbix (monitoring system for traffic, using a MySQL), wiki and RT (all are using Apache). If one server will have became not available then necessary start these services on another server with replication of data. Can I use

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I am having problems when using a Dell PowerVault MD3000 with multipath from a Dell PowerEdge 1950. I have 2 cables connected and mount the partition on the DAS Array. I am using RHEL 4.4 with RHCS and a two node cluster. Only one node is "Active" at a time, it creates a mount to the partition, and if there is an issue RHCS will fence the device and then the other node will mount the

I am working on setting up a Puppet configuration where some of the data is stored on a DRBD volume. The modules and vardir are stored on the drbd volume. The puppet.conf files point to the drbd volume for vardir. I created a cert for a VIP puppet-master using the puppetca -- create command I had everything working on the primary drbd node, but when I fail over, everything starts up fine, but I

Hi, list, I'm going to deploy postfix + dovecot + CephFS( as Mail Storage). Basically I want to use two servers for them, which is kind of HA. My idea is that using keepalived or Pacemaker to host a VIP, which could fail over the other server once one is down. And I'll use Haproxy or Nginx to schedule connections to one of those server based on source IP( Session stickiness),

Hi, I been working on for about a month and half on setup drbd and nfs. I keep running into issue with the way heartbeat/pacemaker handles nfs. Does anyone know a good way to set up a HA NFS server with DRBD and Heartbeat and NFS. I am willing to share my pain in setting it up. Chuck Payne NEO Linux System Engineer chuck.payne at vocolacity.com -------------- next part -------------- An HTML

Hi all, Somebody knows when RHCS for CentOS 4 will be out??? -- CL Martinez carlopmart {at} gmail {d0t} com

Hi, right now I am using only one external server as a gateway for the internal servers. I would like to enable a fail-over on a second server. To implement the floating VIP, should I use heartbeat+pacemaker? Or is there something more "lightweight"? Basically, I just need server2 up the VIP when server1 is down, and server2 down the VIP when server1 is back up (or server 1 does not up

Would any of you be comfortable running the drbd packages from the extras repo? If so, any particular version .. I notice 8.0, 8.2, 8.3. I'll do my own due diligence but just curious if the list has any implementation based feedback. Thanks.

Dear All, Currently i am using HP x6600 Server and I have installed RHEL4 Update 4 AS Linux and RHEL4 Update 4 Support Cluster Suite in my server I am new in fence and can any one help me how to configure HP ILO fence in my server and HP ILO Fence Functionality Regards -S.Balaji

Hello fellows, I have a problem with a 2 node RHCS cluster (CentOS 4) where node 1 failed and node 2 became active. That happened already last year and due to holidays the customer didn't recognize it. The cluster is just a failover for Apache and has no shared storage space. Customer now saw the situation, tried to fix it by rebooting node 1, which then failed to come back up. As

Hi all, I'm happy to announce a new tutorial! https://alteeve.com/w/2-Node_Red_Hat_KVM_Cluster_Tutorial This tutorial walks a user through the entire process of building a 2-Node cluster for making KVM virtual machines highly available. It uses Red Hat Cluster services v3 and DRBD 8.3.12. It is written such that you can use entirely free or fully Red Hat supported environments.