Event 531 - Database corruption warning during SAN firmware upgrade. Can I safely ignore it?
Our Exchange 2010 servers are virtualized with VMWare ESX 4.1. We have two mailbox servers in a DAG with five databases.
This afternoon we were forced to do a firmware update on our SAN to address a potential serious issue. For the update I put one of our mailbox servers in maintenance mode and turned it off (just in case). During the update there was an approximately 20 second
period of very high storage I/O latency. The mailbox server which was still up threw several 507 and 508 errors about the extremely high latency to read and write. It then threw up 8 event 531 warnings (see below).
Since I know my storage isn't failing or having errors, are these something I can safely ignore? All the databases are replicating, and show as healthy. All the indexes show as healthy as well.
Log Name: Application
Source: ESE
Date: 5/11/2012 4:58:58 PM
Event ID: 531
Task Category: Database Corruption
Level: Warning
Keywords: Classic
User: N/A
Computer: Exchange2.HQ.Donohoe
Description:
Information Store (2700) The database engine attempted a clean write operation on page 2581807 of database D:\DCC\DCC.edb. This acton was performed in an attempt to correct a previous problem reading from the page.
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Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="ESE" />
<EventID Qualifiers="0">531</EventID>
<Level>3</Level>
<Task>12</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2012-05-11T20:58:58.000000000Z" />
<EventRecordID>64952</EventRecordID>
<Channel>Application</Channel>
<Computer>Exchange2.HQ.Donohoe</Computer>
<Security />
</System>
<EventData>
<Data>Information Store</Data>
<Data>2700</Data>
<Data>
</Data>
<Data>2581807</Data>
<Data>D:\DCC\DCC.edb</Data>
</EventData>
</Event>
May 11th, 2012 6:01pm
Hi
This error it`s result write operational problem in during FW storage upgrade. Perhaps one or few pages in databases is corrupted. Please dismount database and check status database use Eseutil /G and Eseutil /K Eseutil
/K Checksum Mode
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May 12th, 2012 3:07am
Still getting errors in the event logs?
If
no, you are probably ok and dont need to do anything. If you see more, re-seed that mailbox store from another copy
May 12th, 2012 9:09am
No more errors or warnings in the event log. They only happened during the 10-20 seconds where the SAN had high latency during its firmware update. Everything has been fine since; no more errors, no more warnings.
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May 12th, 2012 11:16am
No more errors or warnings in the event log. They only happened during the 10-20 seconds where the SAN had high latency during its firmware update. Everything has been fine since; no more errors, no more warnings.
In that case, I would say you are fine.
May 12th, 2012 11:24am
No more errors or warnings in the event log. They only happened during the 10-20 seconds where the SAN had high latency during its firmware update. Everything has been fine since; no more errors, no more warnings.
In that case, I would say you are fine.
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May 12th, 2012 11:24am
Hi Zoltank
If the problem is solved, please Mark As Answer and Finish this thread
CheersZi Feng
TechNet Community Support
May 14th, 2012 3:33am