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| techno |
 Posted: Thu Mar 30, 2006 12:15 pm Post subject: No of Log Files |
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Chevalier
Joined: 22 Jan 2003
Posts: 429
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I have qm parameters as
LogPrimaryFiles=?
LogSecondaryFiles=?
LogFilePages=8192 = 8192 * 4KB = 32MB
LogType=CIRCULAR
LogBufferPages=0
LogWriteIntegrity=TripleWrite
If a message size of 100mb is to be transmitted, how many primary+secondary files are needed?
Is this correct? 100mb/32mb = 3
Because it is TripleWrite, do I need to have atleast 3 * 3 = 9 pri+sec log files?
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| wschutz |
| Posted: Thu Mar 30, 2006 12:27 pm Post subject: |
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Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
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No, triplewrite refers to how MQ uses the dasd hardware:
| Quote: |
| The method the logger uses to reliably write log records |
It doesn't mean "use three copies of the logs".
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-wayne |
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| jefflowrey |
| Posted: Thu Mar 30, 2006 12:28 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Do they have DASD on Windows these days?
Or just "disk"?
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I am *not* the model of the modern major general. |
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| wschutz |
| Posted: Thu Mar 30, 2006 12:32 pm Post subject: |
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Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
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ehhhh.who said it was Windows?
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-wayne |
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| jefflowrey |
| Posted: Thu Mar 30, 2006 12:33 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Do they have DASD outside of z/OS these days?
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| wschutz |
| Posted: Thu Mar 30, 2006 12:36 pm Post subject: |
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Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
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| jefflowrey |
| Posted: Thu Mar 30, 2006 12:41 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| wschutz wrote: |
| ummm... I guess no nice trips in your future: |
No?
| wschutz wrote: |
| http://information-technology.careerbuilder.com/JobSeeker/Jobs/JobDetails.aspx?IPath=JRGC&job_did=J3G0MF5X8Y66YG3Z3KR&cbRecursionCnt=1&cbsid=e7955173a5ff410086c0120b5fe1a87c-197048125-WS-2 |
Yes, because when a job ad uses technical terms, they're always correct.
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I am *not* the model of the modern major general. |
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| techno |
| Posted: Thu Mar 30, 2006 12:59 pm Post subject: |
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Chevalier
Joined: 22 Jan 2003
Posts: 429
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| I have that properties file on HP-UX. |
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| jefflowrey |
| Posted: Thu Mar 30, 2006 1:12 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Don't mind me, I'm just harassing wschutz about using DASD when he meant "disk".
Honestly, I view diskspace as considerably cheaper than downtime. So rather than spending your time figuring out the bare minimum size you need to pass a single 100MB message (and what if all of a sudden, there are two?), it would be better to at least max out the number of log files you can have (63 total), and possibly max out the pagesize (16384 on Unixes unless hp-ux is somehow special).
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