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sys_attrs_rm(5)
NAME
sys_attrs_rm - rm subsystem attributes
DESCRIPTION
This reference page lists and describes attributes for the 'Memory
Channel'> (rm) kernel subsystem. Refer to the sys_attrs(5) reference page
for an introduction to the topic of kernel subsystem attributes.
rm_selected_rail
Indicates which logical rail to which the rm_char_* attributes refer.
This attribute can be set to any valid logical rail.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
rm_char_flags
Flags. The flags attribute can have the following setting: 1
(RM_CHAR_FLAG_HUBLESS): 'Memory Channel'> is configured for virtual hub
mode.
Supported operations: Query
rm_char_size
Size in pages of the logical rail (1 page = 8 KB)
Supported operations: Query
Default value: 16384
Minimum value: 0
Maximum value: 0
rm_char_dev
Identity of the 'Memory Channel'> adapter used by the logical rail (for
example, 0 indicates mchan0, 1 indicates mchan1, and so on.
Supported operations: Query
rm_char_phys_rail
Physical rail being used by the logical rail.
Supported operations: Query
rm_char_connected
Bitmap representing the nodes connected to a 'Memory Channel'> hub.
Supported operations: Query
rm_char_member
Bitmap representing the members participating in the cluster.
Supported operations: Query
rm_char_alloc_count
Number of pages of 'Memory Channel'> address space that have been
allocated.
Supported operations: Query
Default value: 3869
Minimum value: 0
Maximum value: 0
rm_char_log_rails
Total number of logical rails in the system.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Default value: 0
Minimum value: 0
Maximum value: 0
rm_char_adapter_size
Number of pages supported by the 'Memory Channel'> adapter.
Supported operations: Query
Default value: 16384 for 'Memory Channel'> 1, 64K for 'Memory Channel'>
2
rm_rail_style
Sets multirail reliability styles, as follows: 0 for RM_STYLE_SINGLE
and 1 for RM_STYLE_FOP (failover pair). This attribute must be set to
the same value on all cluster members. Once you have set this attribute
on all member systems, you must halt the entire cluster and reboot each
member to effect the change.
RM_STYLE_SINGLE (rm_rail_style=0) treats each single physical 'Memory
Channel'> interconnect (or rail) in a system as a logical connection.
The 'Memory Channel'> application programming interface (API) library
uses multiple logical rails simultaneously at their aggregate bandwidth
and memory capacity. Failover between rails is not supported for this
multirail reliability style.
RM_STYLE_FOP (rm_rail_style=1) treats each pair of 'Memory Channel'>
adapters on a system as a single logical rail. There is no gain in
bandwidth or memory capacity beyond that of a single physical
connection; however, if one physical connection fails, the other
provides failover capability. RM_STYLE_FOP is the default
rm_rail_style value.
For more information, see the TruCluster Server Cluster Highly
Available Applications manual.
Supported operations: Query; Configure at boot time
Default value: 1
Minimum value: 0
Maximum value: 2147483647
rm_check_for_ipl
Bitmask indicating when the CPU priority level (spl) of the processor
should be saved in a trace buffer.
Supported operations: Query; Configure at boot time
Default value: 63
Minimum value: 0
Maximum value: 2147483647
rm_record_map_audit
Indicates if an internal consistency check should be made of the
allocated 'Memory Channel'> pages.
Supported operations: Query; Configure at boot time
Default value: 1
Minimum value: 0
Maximum value: 2147483647
rm_audits_enabled
Indicates if an internal consistency check of the tag and 'Memory
Channel'> allocations should be made.
Supported operations: Query; Configure at boot time
Default value: 1
Minimum value: 0
Maximum value: 2147483647
rm_enable_core_dump
If set to 1, any core dump will also dump the 'Memory Channel'> pages
in the core file.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Default value: 1
Minimum value: 0
Maximum value: 2147483647
rm_debug_special_kill
If set to 1, all other nodes will be killed when this node boots.
Supported operations: Query; Configure at boot time
Default value: 0
Minimum value: 0
Maximum value: 2147483647
rm_debug
If set to 1, generates debug trace information for the 'Memory
Channel'> driver
Supported operations: Query; Configure at boot time
Default value: 0
Minimum value: 0
Maximum value: 2147483647
rm_lock_stats_enabled
If set to 1, generates 'Memory Channel'> lock statistics.
Supported operations: Query; Configure at boot time
Default value: 0
Minimum value: 0
Maximum value: 2147483647
rm_cluster_panic
If set to 1, all 'Memory Channel'> nodes will be killed when a panic
occurs in the 'Memory Channel'> driver.
Supported operations: Query; Configure at boot time
Default value: 0
Minimum value: 0
Maximum value: 2147483647
rm_errors
Indicates the number of errors at boot time.
Supported operations: Query
rm_shutdowns
Number of 'Memory Channel'> errors caused by shutdowns.
Supported operations: Query
Default value: 0
Minimum value: 0
Maximum value: 0
rm_error_interval
Specifies the interval during which the number of errors indicated in
rm_error_threshold are monitored.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Default value: 60
Minimum value: 1
Maximum value: 2147483647
rm_error_threshold
Specifies the number of errors allowed by a rail during a given
interval before the rail is considered faulty, and a failover occurs to
another rail (if another rail has been specified as the failover rail).
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Default value: 10
Minimum value: 1
Maximum value: 2147483647
rm_state_change_interval
Specifies the interval during which the number of state changes
indicated in rm_state_change_threshold are monitored.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Default value: 5
Minimum value: 1
Maximum value: 2147483647
rm_state_change_threshold
Specifies the number of state changes allowed by a rail during a given
interval before the rail is considered faulty, and a failover occurs to
another rail (if another rail has been specified as the failover rail).
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Default value: 24
Minimum value: 1
Maximum value: 2147483647
rm_use_512
When set to 1, indicates that 'Memory Channel'>2 adapters and the
entire 'Memory Channel'> space (512 MB) is being used. When upgrading
from 'Memory Channel'> 1 to 'Memory Channel'> 2 adapters, you must set
this attribute to 1 while the cluster is up to start using 512 MB of
'Memory Channel'> space.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Minimum value: 0
Maximum value: 1
rm_adapter_wait
Number of seconds to wait at configuration time before proceeding when
no more than half of the 'Memory Channel'> adapters are on line.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Default value: 5
Minimum value: 0
Maximum value: 10000
SEE ALSO
sys_attrs(5)
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