IBM PureData System for Analytics, Version 7.1

Disk predictive failure errors event

The hard disks where your user databases reside record certain performance and reliability data as they perform I/O. This status is referred to as Self-Monitoring Analysis and Reporting Technology (SMART) status. You can use the event manager to notify you when certain threshold values are crossed in the recorded performance or reliability data.

Exceeding these thresholds might indicate that the disk has started to run poorly (that is, it reads or writes data more slowly than it should) and affects the speed at which queries are processed. It might even indicate that the disk might fail soon.

IBM® Netezza® sets the thresholds that are based on analysis of disk drives and their performance characteristics. If you receive any of these events, contact Netezza Support and have them determine the state of your disk. Do not aggregate these events. The templates do not aggregate these events by default.

The following is the syntax for the event rule SCSIPredictiveFailure event:

-name 'SCSIPredictiveFailure' -on no -eventType scsiPredictiveFailure 
-eventArgsExpr '' -notifyType email -dst 'you@company.com' -ccDst '' 
-msg 'NPS system $HOST - SCSI Predictive Failure value exceeded for 
disk $diskHwId at $eventTimestamp' -bodyText 
'$notifyMsg\n\nspuHwId:$spuHwId\ndisk 
location:$location\nscsiAsc:$scsiAsc\nscsiAscq:$scsiAscq\nfru:$fru\nde
vSerial:$devSerial\ndiskSerial:$diskSerial\ndiskModel:$diskModel\ndisk
Mfg:$diskMfg\nevent source:$eventSource\n' -callHome no 
-eventAggrCount 0

The following table lists the output from the SCSIPredictiveFailure event rule.

Table 1. SCSIPredictiveFailure event rule
Arguments	Description	Example
spuHwId	The hardware ID of the SPU that owns or manages the disk that reported the event
diskHwId	The hardware ID of the disk	1013
scsiAsc	The attribute sense code, which is an identifier of the SMART attribute	Vendor specific
scsiAscq	The attribute sense code qualifier of the SMART attribute	Vendor specific
fru	The FRU ID for the disk
location	The location of the disk
devSerial	The serial number of the SPU to which the disk is assigned	601S496A2012
diskSerial	The disk serial number	7.21496rA2.21091rB1
diskModel	The disk model number
diskMfg	The disk manufacturer

Restriction: Do not aggregate this event.