Disaster In The Real World - #2

  • Andy Warren

    SSC Guru

    Points: 119675

  • Jim P.

    SSCrazy Eights

    Points: 8725

    The one thing I've done a lot is is created a scheduled task based off the sp_help_revlogin SP. It dumps the data to disk every 8 hours. Then the file is replicated to another server.

    In a different job, I also had a script to create the restore scripts as well. That ran on a regular basis as well.

    I also create my maintenance plans, etc by standardized scripts as well.

    Having the logins with the right SIDs and the and the SQL backups, it allows me to not worry about recovering the system database and just do a fresh install of SQL Server. Then I worry about the user databases.



    ----------------
    Jim P.

    A little bit of this and a little byte of that can cause bloatware.

  • Ron McCullough

    SSC Guru

    Points: 63877

    gloing73 (12/15/2012)


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    This particular post in this forum reported as SPAM

    If everything seems to be going well, you have obviously overlooked something.

    Ron

    Please help us, help you -before posting a question please read[/url]
    Before posting a performance problem please read[/url]

  • mtassin

    SSC-Insane

    Points: 23096

    Hey Andy,

    Just to be sure I read this right...

    Win2k, SQL2k? In 2012?

    Wow... makes me glad that management lets me upgrade to newer stuff than that!



    --Mark Tassin
    MCITP - SQL Server DBA
    Proud member of the Anti-RBAR alliance.
    For help with Performance click this link[/url]
    For tips on how to post your problems[/url]

  • jonathan.d.myers

    Old Hand

    Points: 325

    Hi, Andy,

    I'd read your initial article a couple times to ensure I understood the chain of events and the timing of the issues. I've ran into a similar situation within the last year, and wanted to compare notes after the holiday. I'm uncertain whether your event was preventable, but we've determined ours was.

    Firstly though, can you confirm your environment specs? We're most likely not comparing apples to apples, as we're running Windows 2k8 and SQL 2k5, currently, with a plan to skip 2k8 for 2012. In one case far in my past, the simultaneous outage for Exchange and SQL were caused by a single system issue, as the business had been stingy on funding a separate server for each. A simple drive fill caused by a mislocated tempdb caused the system failure. In the recent past, the issue was caused by and unscheduled & uncommunicated security alteration from the separate AD group in the company. In your case, it sounds more like a specific OS registry corruption on the Exchange server, and a separate but coincidental total failure of your RAID5 drive configuration for the SQL server.

    Ignoring the mail server issue for a moment, was there monitoring for drive failure within your SQL RAID configuration? In addition, does your SQL instance use the Exchange server as the SMTP destination for any server alerts thru DBMail? Perhaps it wasn't as much of a coincidence after all.

    I look forward to your comments in response. Hopefully, an alteration to the current recovery standards will help minimize recovery times in case of another event.

    Cheers!

    Jonathan

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