Backup Central

Hello,

I've just started using Bacula having installed the RPMs from the Scientific Linux distro. I'm trying to back up several machines to disk file on the Bacula server and am experiencing two odd problems:

i) disk volumes created by Bacula are changing their state to Error with the message that they are a different size to that set in the catalog, is this normal?

ii) data throughput is really low The machines are all connected via gigabit connections yet I'm seeing less than 6MBytes/s transfer to disk, more often than not it is down to 2 Mbytes/s. The raid array I'm using responds at a speed of about 70Mbytes/s when i test it with a dd of a few gigabyte from /dev/zero. Rsync between the same hosts was very quick, generating nearly 500Mbit/s of network traffic.

Can any offer any suggestions?

Thanks,
Graham
------------------------------------------------------------------------------
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 < at > lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users

Are you doing compression or encryption? And if so which? If the files are large I found that those can really slow down the transfers.

---Guy
(via iPhone)

On 19 May 2012, at 01:00, Graham Worley <g.worley < at > bangor.ac.uk> wrote:

Hello,

I've just started using Bacula having installed the RPMs from the Scientific Linux distro. I'm trying to back up several machines to disk file on the Bacula server and am experiencing two odd problems:

i) disk volumes created by Bacula are changing their state to Error with the message that they are a different size to that set in the catalog, is this normal?

ii) data throughput is really low The machines are all connected via gigabit connections yet I'm seeing less than 6MBytes/s transfer to disk, more often than not it is down to 2 Mbytes/s. The raid array I'm using responds at a speed of about 70Mbytes/s when i test it with a dd of a few gigabyte from /dev/zero. Rsync between the same hosts was very quick, generating nearly 500Mbit/s of network traffic.

Can any offer any suggestions?

Thanks,
Graham
------------------------------------------------------------------------------
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 < at > lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users

------------------------------------------------------------------------------
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 < at > lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users

I've just started using Bacula having installed the RPMs from the Scientific Linux distro. I'm trying to back up several machines to disk file on the Bacula server and am experiencing two odd problems:

i) disk volumes created by Bacula are changing their state to Error with the message that they are a different size to that set in the catalog, is this normal?


I have seen that in the past like 3 times in 10 years (around 30
thousand completed jobs) but in no way is that is not normal. I would
look for an updated version of bacula. 5.26 is the current version


ii) data throughput is really low The machines are all connected via gigabit connections yet I'm seeing less than 6MBytes/s transfer to disk, more often than not it is down to 2 Mbytes/s. The raid array I'm using responds at a speed of about 70Mbytes/s when i test it with a dd of a few gigabyte from /dev/zero. Rsync between the same hosts was very quick, generating nearly 500Mbit/s of network traffic.

Can any offer any suggestions?


Turn off software compression or run multiple simultaneous jobs from
different clients.

John

------------------------------------------------------------------------------
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 < at > lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users

I have seen that in the past like 3 times in 10 years (around 30
thousand completed jobs) but in no way is that is not normal. I would
look for an updated version of bacula. 5.26 is the current version
Am building 5.2.6 by hand now as 5.0.0 was the latest in the Scientific
Linux repository. I'll see how I get on.
Turn off software compression or run multiple simultaneous jobs from
different clients.
I believe compression is off. Should running multiple jobs help? I'm
trying to understand what the cause of the bottleneck is. Is there a way
of determining other than trial and error with simultaneous jobs whether
the problem is caused at the file daemon end or the storage daemon?

John
Thanks for your helpful suggestions,


Graham


--
Graham Worley BEng MIET
Network Manager
School of Ocean Sciences
College of Natural Sciences
University of Wales BANGOR
Askew Street
Menai Bridge
Anglesey
LL59 5EY

e-mail : G.Worley < at > bangor.ac.uk
Tel. : 01248 382694


--
Rhif Elusen Gofrestredig / Registered Charity No. 1141565

Gall y neges e-bost hon, ac unrhyw atodiadau a anfonwyd gyda hi,
gynnwys deunydd cyfrinachol ac wedi eu bwriadu i'w defnyddio'n unig
gan y sawl y cawsant eu cyfeirio ato (atynt). Os ydych wedi derbyn y
neges e-bost hon trwy gamgymeriad, rhowch wybod i'r anfonwr ar
unwaith a dilëwch y neges. Os na fwriadwyd anfon y neges atoch chi,
rhaid i chi beidio â defnyddio, cadw neu ddatgelu unrhyw wybodaeth a
gynhwysir ynddi. Mae unrhyw farn neu safbwynt yn eiddo i'r sawl a'i
hanfonodd yn unig ac nid yw o anghenraid yn cynrychioli barn
Prifysgol Bangor. Nid yw Prifysgol Bangor yn gwarantu
bod y neges e-bost hon neu unrhyw atodiadau yn rhydd rhag firysau neu
100% yn ddiogel. Oni bai fod hyn wedi ei ddatgan yn uniongyrchol yn
nhestun yr e-bost, nid bwriad y neges e-bost hon yw ffurfio contract
rhwymol - mae rhestr o lofnodwyr awdurdodedig ar gael o Swyddfa
Cyllid Prifysgol Bangor. www.bangor.ac.uk

This email and any attachments may contain confidential material and
is solely for the use of the intended recipient(s). If you have
received this email in error, please notify the sender immediately
and delete this email. If you are not the intended recipient(s), you
must not use, retain or disclose any information contained in this
email. Any views or opinions are solely those of the sender and do
not necessarily represent those of Bangor University.
Bangor University does not guarantee that this email or
any attachments are free from viruses or 100% secure. Unless
expressly stated in the body of the text of the email, this email is
not intended to form a binding contract - a list of authorised
signatories is available from the Bangor University Finance
Office. www.bangor.ac.uk

------------------------------------------------------------------------------
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 < at > lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users