Kind of branching off here but felt I should toss in my 2 cents re: Throttling clients
We have a similar problem where some remote clients have low bandwidth pipes and we can't consume all available bandwidth. Our environment is mostly linux so and we achieve throttling using baculas client run before and client run after options and some simple firewall traffic shaping scripts. Mac os may have the same/similar functionality available, if not, you can always use the scripts server side to achieve the same(assuming a linux storage server) just ensure some careful management and tweaking to prevent collisions. Scripts : <ADD LIMIT> #!/bin/bash ## rate limit bacula transfer ## /opt/bacula/bin/add_rate_limit.sh BANDWIDTH="1gbit" RATE_LIMIT="10mbit" DEST="bacula.server.org" IF="eth1" LIMITED=`tc -d class ls dev $IF | wc -l` if [ $LIMITED -lt 2 ] then /sbin/tc qdisc add dev $IF root handle 1:0 htb default 10 /sbin/tc class add dev $IF parent 1:0 classid 1:1 htb rate $BANDWIDTH /sbin/tc class add dev $IF parent 1:1 classid 1:10 htb rate $BANDWIDTH /sbin/tc class add dev $IF parent 1:1 classid 1:11 htb rate $RATE_LIMIT /sbin/iptables -I OUTPUT -t mangle -d $DEST -p tcp --dport 9103 -j MARK --set-mark 11 /sbin/tc filter add dev $IF parent 1:0 prio 1 protocol ip handle 11 fw flowid 1:11 else echo "Already have rate limits in place" fi </ADD LIMIT> <REMOVE LIMIT> #!/bin/bash ## Remove rate limit ## /opt/bacula/bin/remove_rate_limit.sh DEST="bacula.server.org" IF="eth1" /sbin/iptables -D OUTPUT -t mangle -d $DEST -p tcp --dport 9103 -j MARK --set-mark 11 /sbin/tc qdisc del dev $IF root </REMOVE LIMIT> -----Original Message----- From: Josh Fisher [mailto:jfis...@pvct.com] Sent: Monday, June 04, 2012 8:04 AM To: bacula-users@lists.sourceforge.net Subject: Re: [Bacula-users] ssd drive question 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 This electronic mail transmission and any accompanying attachments contain confidential information intended only for the use of the individual or entity named above. Any dissemination, distribution, copying or action taken in reliance on the contents of this communication by anyone other than the intended recipient is strictly prohibited. If you have received this communication in error please immediately delete the e-mail and either notify the sender at the above e-mail address or by telephone at +1 250.386.5323. ------------------------------------------------------------------------------ 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
