HpCISSs3 Event ID 5012 I/O being retried

[Vincas]

Hi everyone,

Setup:

We have a C7000 blade enclosure with 2 x HP 6Gb SAS BL Switch on them, connected to 7 x D2700 disk enclosures via 2 eSAS cables each, dual domain enabled.

In this Enclosure a ProLiant BL660c Gen8 with Smart Array P731m (BBWC enabled, Write 100%) connected to some of the disks from multiple D2700 enclosures (RAID50 from 18 x SAS dual port disks and RAID10 from 8 x SSD single port).

There are other servers on the same enclosure working with the same storage, but they are not loaded heavily on disk I/O, and do not have this issue.

Issue:

There are disk read performance problems. Read performance is way below the specs. Write is a bit better, but still not reaching the specs.

Once the load on the disk increases, we are getting numerous events in the event log only on the mentioned blade (OS: Windows Server 2008 R2 Sp1).

Can somebody please explain what these events mean, I have failed to find the description in the web.

Log Name:      System
Source:        HpCISSs3
Date:          2014.05.21 21:26:54
Event ID:      5012
Task Category: None
Level:         Information
Keywords:      Classic
User:          N/A
Computer:      ******
Description:
On controller (bus 6, device 0, function 0) I/O failed for 28.  I/O being retried via RAID path for LUN (0, 1, 1).
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="HpCISSs3" />
    <EventID Qualifiers="17408">5012</EventID>
    <Level>4</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-05-21T18:26:54.079860200Z" />
    <EventRecordID>81753</EventRecordID>
    <Channel>System</Channel>
    <Computer>******</Computer>
    <Security />
  </System>
  <EventData>
    <Data>\Device\00000079</Data>
    <Data>6</Data>
    <Data>0</Data>
    <Data>0</Data>
    <Data>28</Data>
    <Data>0</Data>
    <Data>1</Data>
    <Data>1</Data>
    <Binary>0F0020000800480000000000941300440000000000000000000000000000000000000000000000000100000020000000941300440000000000000000010000000100000001000000</Binary>
  </EventData>
</Event>

Thank You for Your help.

Sincerely,

Vince

P.S. This thread has been moved from General to Disk array. - Hp Forum Moderator

[Patrick Neuner]

did you ever figure it out?

Thanks

Patrick