On 5/31/2012 9:19 PM, Randy Katz wrote: > Hi, > > Has anyone tried to use an SSD drive to house the MySQL database for > Bacula and understand the > performance differences, if any? I am wondering if it will provide a > significant speed boost to running it > on disk or not. Any clues might be very helpful, thanks.
Increased speed of what, exactly? I moved a bacula db from a RAID1 array of two WD RE-4 drives to an old 80 GB Intel X25-M, which is not one of the fastest compared to more recent SSDs. However it has random read and write performance that far exceeds hard drives. Whether or not it constitutes a significant speed boost for Bacula depends on whether or not MySQL was the bottleneck to begin with. In my case, catalog backup with mysqldump was significantly faster, file selection during a restore was more than twice as fast, pruning/purging volumes was much faster. However, there was only a modest improvement in backup job times. I turned off attribute spooling and it didn't much affect backup times. I have thought about moving the data spooling to SSD, but I suspect it would make little improvement. In my case, I believe the clients themselves are the bottleneck. In fact, believe it or not, I wish there were a way to throttle backup speeds for particular clients. I have people that drop their network connection on Macbook Pros because they get hot and noisy (from the increased fan speed) when a backup is in progress, yet they take it home with them at night. It's getting hard to get a backup of those machines. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
