Shrinking logs on Mirrored Principals

  • Hi all,

    I seem to remember seeing a YT vid where someone warned against shrinking down mirrored principal logs.  I'm aware it's never best practice under any circumstances (and of course I NEVER shrink datafiles) but I believe he said there was an extra risk when the log being shrunk was mirrored. 

    I've recently had to shrink down a few mirrored principal logs to make emergency space, would be good to have an idea whether there truly is extra risk.  Personally I can't see how it would be riskier than with a log without a HA in place, but over to you guys....

    TIA

  • JackCarrington - Friday, September 7, 2018 4:11 AM

    Hi all,

    I seem to remember seeing a YT vid where someone warned against shrinking down mirrored principal logs.  I'm aware it's never best practice under any circumstances (and of course I NEVER shrink datafiles) but I believe he said there was an extra risk when the log being shrunk was mirrored. 

    I've recently had to shrink down a few mirrored principal logs to make emergency space, would be good to have an idea whether there truly is extra risk.  Personally I can't see how it would be riskier than with a log without a HA in place, but over to you guys....

    TIA

    You can shrink log in principal and it will get replicated to mirror

  • coolchaitu - Friday, September 7, 2018 4:24 AM

    JackCarrington - Friday, September 7, 2018 4:11 AM

    Hi all,

    I seem to remember seeing a YT vid where someone warned against shrinking down mirrored principal logs.  I'm aware it's never best practice under any circumstances (and of course I NEVER shrink datafiles) but I believe he said there was an extra risk when the log being shrunk was mirrored. 

    I've recently had to shrink down a few mirrored principal logs to make emergency space, would be good to have an idea whether there truly is extra risk.  Personally I can't see how it would be riskier than with a log without a HA in place, but over to you guys....

    TIA

    You can shrink log in principal and it will get replicated to mirror

    🙂 Yes buddy I'm aware of that !!

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