On 11/04/2013 03:10 PM, Josh Fisher wrote:
> 
> On 11/4/2013 1:27 PM, Phil Stracchino wrote:

>> Honestly, based upon experience as a DBA at a hosting company that hosts
>> MANY customers using MySQL, my first advice on using MySQL on top of
>> DRBD would be "Just don't."

> ... I have been using MySQL 
> on DRBD in mode C for quite some time and have seen drive failures, NIC 
> failures, and node failures without any data loss or db problems I could 
> attribute to DRBD.

I've been running a wordpress site or 2 w/ drbd'ed mysql db for years
without problems, either. However, don't think I had any failures in
e.g. a middle of a huge OLTP spike... With few transactions and almost
no concurrent ones it's rock solid -- on top of obsolete no longer
supported heartbeat -- your distro's cluster manager du jour is another
worm in that can.

-- 
Dimitri Maziuk
Programmer/sysadmin
BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu

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