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Warning Messages Related to CCISS Driver while Starting HP Insight Manager on ESX Server 3.x

Details

While starting HP Insight Manager on ESX Server 3.x, you see error messages in /var/log/messages that are similar to those seen in the following example:

Jan 15 17:10:52 osdc-tmpcpd01 kernel: HP CISS Driver (v 2.4.64-1VMS)
Jan 15 17:10:52 osdc-tmpcpd01 kernel: cciss: no controllers found, quitting...
Jan 15 17:10:52 osdc-tmpcpd01 insmod: /lib/modules/2.4.21-47.0.1.ELvmnix/kernel/drivers/block/cciss.o: init_module: No such device
Jan 15 17:10:52 osdc-tmpcpd01 insmod: Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters. You may find more information in syslog or the output from dmesg
Jan 15 17:10:52 osdc-tmpcpd01 insmod: /lib/modules/2.4.21-47.0.1.ELvmnix/kernel/drivers/block/cciss.o: insmod scsi_hostadapter failed

Solution

This is a known problem, which VMware is working to resolve. The log messages do not indicate a real error condition and their presence is not harmful.
 
These harmless messages appear when the sg module is loaded (usually by HP Insight Manager) on a system that has no storage controllers except those controlled by the cciss driver.
 
Hardware preconditions:
  • Most storage controller drivers (including most RAID and FC controllers) are seen by Linux as SCSI drivers.
  • One exception is cciss , which operates various HP/Compaq array controllers and is seen by Linux as a block driver.
  • These messages appear only on systems that have at least one cciss controller and no other SCSI controllers.
Software preconditions:
  • This issue can happen on any ESX Server 3.x version.
  • The messages appear when the console OS SCSI generic driver module sg is loaded.
  • Messages appear at most once per system uptime.
  • ESX Server by itself does not normally load sg .
  • HP Insight Manager agents do load sg .
     

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Actions
  • KB Article: 1000261
  • Updated: Aug 14, 2009
  • Products:
    VMware ESX
  • Product Versions:
    VMware ESX 3.0.x