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MQSeries.net Forum Index » General Discussion » IBM finally admits linear logging sucks

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exerk
PostPosted: Tue Aug 05, 2008 11:30 pm    Post subject: Reply with quote

Jedi Council

Joined: 02 Nov 2006
Posts: 6339
I've found in general it comes down to what the customer is prepared to pay for. As Administrators/Solution Designers we (as a group) can recommend and document an optimum solution, which may involve linear logging, but the customer may wish for a less 'costly' option (I know storage is cheap now).

The bottom line is - the customer pays for the expertise, but they are not obligated to use it.

Perhaps, when it all goes pear-shaped, time spent in front of the mirror practising your 'I told you so' look (never voiced, far too unprofessional) would be time well spent
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PeterPotkay
PostPosted: Wed Aug 06, 2008 6:52 am    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7723
Just a little more related info:

http://www.ibm.com/developerworks/websphere/library/techarticles/0712_dunn/0712_dunn.html

Quote:

If you need to be able to forward recover queue data following a failure or recover from media failure of the device containing the log you must use linear logging if you are dependent on WebSphere MQ to provide this level of protection for you. An alternative strategy is to use disk mirroring to mirror the log device. This is often a facility provided by a SAN. In this case you could use circular logging.

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Peter Potkay
Keep Calm and MQ On
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