syslog message

[Thomas Braeutigam]

Hi,

while I reviewing my syslog File, there were a message:

Oct 8 09:26:20 hpserv1 syslog:
HP Advanced Disk Array serial number 00000120CB2A:
Multi-initiator lock obtained: Product Revision: HP25: Product ID: C3586A

The message have once repeated since. STM or Predictive Checks shows that there is no disk abnormality. Is the Syslog-Message telling me that one of my disks is going bad?

[Alex Glennie · Accepted solution]

This entry is not a fault; it means that there has been
a change in the state of the variable representing the
ownership of the multiple initiator lock:

- Multi-initiator lock obtained:

The ARMServer has obtained the lock that allows
it to clear logs. This means that control is
owned by the incarnation of ARMServer on the
host from which this event was broadcast.

- Multi-initiator lock relinquished:

The ARMServer has lost the lock that allows it
to clear logs. This means that this host does not
have control.

The purpose of the multiple initiator lock is to provide
a host-machine-independent semaphore to enable one of two
or more host systems on the same SCSI bus as a given ARM
disk array to obtain exclusive control of the disk array.

There is a vendor-unique Compare and Swap SCSI command
provided by the disk array firmware, which is utilized
to implement the multiple initiator lock.

This feature is used primarily to control which host's
incarnation of ARMServer has the right to sample and clear
the disk array performance and event log.

Possible causes include:

- ARMServer logic implementing this feature has caused
a change in ownership.

- A user has invoked the Force Lock command using the
arraymgr -F command and this informs the system
administrator by logging it into the syslog.log.

The following information is from the arraymgr man page:

-F Force server lock. Used in multi-host configurations,
this option allows a host to take immediate ownership
of the disk array lock. This lock gives the owner exclusive
ability to perform destructive operations, such as reading
and clearing the disk array logs.

[CHRIS_ANORUO]

You don't have to panic about this. It is normal message from the HP Disk array at boot up.

[James R. Ferguson]

Hi:

This entry is not a fault; it means that there has been a change in the state of the variable representing the ownership of the multiple initiator lock:

- Multi-initiator lock obtained:

The ARMServer has obtained the lock that allows it to clear logs. This means that control is owned by the incarnation of ARMServer on the host from which this event was broadcast.

- Multi-initiator lock relinquished:

The ARMServer has lost the lock that allows it to clear logs. This means that this host does not have control.

...JRF...

[James R. Ferguson]

Hi (again):

BTW, the above information is from document #G2767262.

..JRF...