[DRBD-user] Where to find review of DRBD vs Corosync

Bruce Wolfe, M.S.W., CIO brucew at alcoholjustice.org
Fri Aug 17 01:38:11 CEST 2012

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Thanks, Digimer, and greetings again. 

The configuration is: 
Failover of primary to secondary. 
Two nodes: one primary, one secondary in, as you say, a RAID 1 configuration. 

So, all three get used? In our current configuration, we are only using DRBD and Heartbeat. 

Bruce M. Wolfe, M.S.W., CIO 

24 Belvedere St. 
San Rafael, CA 94901 
415/456.5692 (Main Office) 
415/257.2493 (Direct) 
415/456.0491 (Fax) 

"Injustice must be exposed, with all the tension its exposure creates, to the light of human conscience and the air of national opinion before it can be cured." - Martin Luther King Jr. ----- Original Message -----

| On 08/15/2012 06:09 PM, Bruce Wolfe, M.S.W., CIO wrote:

| > Just wondering where a good one is. Starting a new install with just
| > two

| > nodes.

| > Corosync *or* DRBD, and Pacemaker

| >

| > Thanks in advance.

| These are complementary, not opposing, technologies.

| DRBD = block-level disk replication (think 'RAID 1 over a network')

| Corosync = Cluster membership, ordered messaging, etc.

| Pacemaker = Cluster resource management. That is, what runs where on
| the

| cluster depending on the current membership.

| So the short answer to you question is; All three.

| The long answer depends entirely on what you are trying to do.

| --

| Digimer

| Papers and Projects: https://alteeve.com

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