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| wmqiadmin |
 Posted: Mon Jan 22, 2007 9:36 am Post subject: MQ/Broker file system on AIX |
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Disciple
Joined: 19 Jun 2005
Posts: 163
Location: epping UK
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Hi All,
I am designing Broker and MQ V6 file system on AIX.
My questions are:
What are the industry standards for calculating the max log file size and mqm working data.
How much size should i consider for Broker file system on mqm/var file system. (Broker queues and messages)
How much Broker data base size should i consider for one broker.
what other points shuld i consider while calculation.
Considering 50000 messages at one time in the system. Is there any document on this from IBM?
Thanks in advance,
wmqiadmin |
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| ashoon |
| Posted: Mon Jan 22, 2007 11:26 am Post subject: check calculating log file size |
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Master
Joined: 26 Oct 2004
Posts: 235
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in the admin guide... there's a section that explains exactly what ya need to do...
good luck |
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| Tibor |
| Posted: Tue Jan 23, 2007 1:34 am Post subject: |
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Grand Master
Joined: 20 May 2001
Posts: 1033
Location: Hungary
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MQ:
- transactional log size: look ashoon's link
- messages: the number of messages / day is not enough for calculating you have to know the average size
Broker:
- filesystem /var/mqsi is tiny (less than 5MB)
- database reqs is depend on the selected product (DB2 / Oracle) and the amount of retained publications
Tibor |
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| wmqiadmin |
| Posted: Tue Jan 23, 2007 9:00 am Post subject: |
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Disciple
Joined: 19 Jun 2005
Posts: 163
Location: epping UK
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Thanks Ashoon & Tibor,
The message size is not very big…. current estimation is about 15 to 25 KB max.
Database is oracle 10g
Also, our company is new in implementing MQ and Broker, we are installing various queue managers on AIX, AS400 and windows. How should be our contingency plan. How often should we take the back up and should I rely on liner logs or should I take a back up from MS03 software too.
Hence we can’t increase the log file size, how much space I should consider to be enough considering it for next 3 years message flow through MQ. |
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| Vitor |
| Posted: Tue Jan 23, 2007 9:08 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| wmqiadmin wrote: |
Hence we can’t increase the log file size, how much space I should consider to be enough considering it for next 3 years message flow through MQ. |
You should be looking at the System Administration Guide for all your answers. If you use linear logging your log file size need only be enough to cope for the maximum in flight transaction numbers. You should also consider recording images in the log rather than (or perhaps in supliment to) saveqmgr. As to total file size in terms of file system, linear logging with a house keeping schedule to remove redundant logs offline will keep this to a minimum.
You should in addition search this forum for discussuion of backing up queue managers. It's a common topic.
Alternatively (if you're new to MQ & Broker), invest in a few days consultancy from a trusted source to get you over the initial hurdles and round the gotchas! 
_________________
Honesty is the best policy.
Insanity is the best defence. |
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