The following SNMPs rules are followed: 

GLYPH<SM590000> Up to eight SNMP traps for each SFI server in a 24-hour period (maximum: 16 for each 24 hours for each SFI). 

GLYPH<SM590000> The rank enters the saturation state if it is in saturation for five consecutive 1-minute samples. 

GLYPH<SM590000> The rank exits the saturation state if it is not in saturation for three of five consecutive 1-minute samples. 

GLYPH<SM590000> The SNMP message 224 is reported when a rank enters saturation or every eight hours if the rank is in saturation. The message identifies the rank and SFI. See Example 14-20. 

Rank Saturated UNIT: Mnf Type-Mod SerialNm IBM 2107-981 75-ZA571 Rank ID: R21 Saturation Status: 0 

Important:  To receive traps from I/O Priority Manager (IOPM), set the IOPM to manage SNMP by issuing the following command: 

## 14.2.4 Thin provisioning SNMP 

chsi -iopmmode managesnmp <Storage_Image> 

The DS8880 can trigger two specific SNMP trap alerts that relate to the thin provisioning feature. The trap is sent out when certain extent pool capacity thresholds are reached, which causes a change in the extent status attribute. A trap is sent under the following conditions: 

GLYPH<SM590000> The extent status is not zero (available space is already below threshold) when the first extent space-efficient (ESE) volume is configured. 

GLYPH<SM590000> ESE volumes are configured in the extent pool. 

Example 14-21 shows an example of generated event trap 221. 

Space Efficient Repository or Over-provisioned Volume has reached a warning watermark Unit: Mnf Type-Mod SerialNm IBM 2107-981 75-ZA571 Volume Type: repository Reason Code: 1 Extent Pool ID: f2 Percentage Full: 100% 

