… on the speed of the disk subsystem and network. If you do not have BBU on disk when you will be able… while DRBD overhead remains at 200-300 microseconds for requests. This means DRBD slow down things 3 times+ writes. There is nothing wrong with DRBD, it is great piece of software and it is not what it is running slow but…
Post: Three key things to know about moving MySQL into the cloud.
July 13, 2009 By 11 Comments
…. Most High Availability tools (like MMM or DRBD+Heartbeat) work on the principal of having…slow disks. Related to the point above – you can’t change the disks either. Both software RAID striping the internal disks… RAID 10 controller with a battery backed write cache. If you can live with these …
