IBM XIV User Manual

Description SSDs in module Component have unexpected
firmware level. Check full event details for the
complete list of the mismatched ssds.
Troubleshooting Please update the firmware level.
INTERFACE_NODE_CHOKING
Severity warning
Description Interface node #Node has long Cache latency.
Entered choked state choke_time msec ago on
node=Node
Troubleshooting Please contact support.
INTERFACE_NODE_UNCHOKING
Severity variable
Description Interface node #Node is leaving choked state after
choke_time msec. Longest choke on node=Node
Troubleshooting Please contact support.
INTERFACE_CHOKE_REPORT
Severity informational
Description Interface node #Node choked for a total of
choke_time msecs in the last report_period minutes.
The longest choke was of longest_choke msecs on
node=Node-ID
Troubleshooting Please contact support.
VERY_LONG_LATENCY_TO_CACHE
Severity variable
Description Interface #Node has long latencies to the caches for
interval seconds. Longest latency is longest_latency
msecs to node cache
Troubleshooting Please contact support.
LONG_LATENCY_TO_CACHE
Severity variable
Description Interface #Node had long latencies to the caches
for interval msecs. Longest latency is
longest_latency msecs to node cache
Troubleshooting Please contact support.
TASK_MANAGEMENT_FUNCTION_RECEIVED
Severity minor
Description Interface node #Node got task management
function task_management_function_code from Host
host_name at port_type port port_name to volume
volume.
Troubleshooting N/A
Chapter 24. Events
613

IBM XIV Specifications

General

Power Supply	Redundant power supplies
Drive Type	SATA
Redundancy	Fully redundant components
Connectivity	Fibre Channel, iSCSI
Form Factor	Rack-mounted
Cache	Distributed cache across modules
Data Protection	Snapshots, remote mirroring
Performance	High throughput and low latency
Scalability	Modular, scale-out architecture
Cooling	Redundant cooling
Architecture	Grid-based, distributed architecture