Specifications

Service Messages
158 Continuous Access Storage Appliance Installation and Maintenance Guide
Reading VSM states
Figure 9 lists the states that the VA Status Monitor (VSM) service gathers from the appliance’s
shared storage array.
Table 9: VSM states
Value Name Description
0 Ready The subsystem is fully functional and ready to provide storage to meet
the host's needs. The subsystem has completed its power up sequence
prior to reaching this state.
1 Warning The subsystem encountered an error requiring attention but the error
does not prevent access to data. Possible causes of the error include a
battery warning, loss of data availability, or loss of redundancy.
However, the error should not cause changes to the subsystem behavior
typically visible to the host. If the cause of the error is loss of data
availability, you can access data that is still present. You cannot access
data that is deemed unavailable.
2 Not Enough Drives There are not enough drives to allow the system to function. The
minimum number of drives depends on a number of variables.
3 No Quorum The Part field on the Subsystem Parameters mode page is clear. There
are not enough volume set member drives available to continue without
partitioning the volume set.
4 No Map The subsystem lacks internal metadata that is critical to continued
operation. The data structures necessary to perform host data storage
commands are lost or have not been created. The possibility of
recovering lost data is remote (except when you remove and reinsert
drives). You may be able to recover data using drive pass through
commands, but successful recovery would be difficult at best.
5 Shutting Down The subsystem receives a Shutdown command from the host and
remains in this state until:
■ All previously accepted commands complete.
■ All policies have been deactivated.
■ The subsystem metadata has been copied to disk(s).
After these tasks are completed, the subsystem enters the Shutdown
state.
6 Shutdown The subsystem has completed policy deactivation and metadata backup
and is no longer performing host access commands. In this state, the
subsystem cannot perform data storage commands.
7 Starting Up The subsystem is initializing, following a power on or reset. The
subsystem returns SCSI sense information that it is getting ready to
process the commands it is unable to complete while in this state.
8 No Code The controller has lost microcode. The FLASH ROM has been erased
in preparation for a firmware update. This state persists until you update
the firmware and reset the subsystem.
9 Reserved Reserved