All MIBs › CPQSCSI-MIB › cpqScsiPhyDrvLowReadSectors
cpqScsiPhyDrvLowReadSectors
Module: CPQSCSI-MIB
OID (symbolic): CPQSCSI-MIB::cpqScsiPhyDrvLowReadSectors
OID (numeric): 1.3.6.1.4.1.232.5.2.4.1.1.12
Node type: OBJECT-TYPE
Type: Counter
Access: read-only
Description: SCSI Physical Drive Sectors Read (low).
The phyDrvHighReadSectors and the phyDrvlowReadSectors together show the total number of sectors read from the physical disk drive during the service time (phyDrvServiceHours).
The actual number of sectors read equals the phyDrvHighReadSectors times 2^32 plus the phyDrvLowReadSectors.
This information may be useful for determining rates. For example, if you want to calculate the average number of reads per hour of operation, divide this number by the service time.
What is cpqScsiPhyDrvLowReadSectors?
This counter is the low-order 32 bits of a 64-bit total sector-read count for a physical drive, paired with cpqScsiPhyDrvHighReadSectors to form the full value. Admins use the combined total to gauge how much read activity a specific disk has handled since the driver loaded, useful for spotting unusually busy or idle drives. For example, an admin diagnosing uneven load across a RAID array's disks would compare lowReadSectors between members to see if one drive is doing disproportionately more work.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.232.5.2.4.1.1.12 snmpwalk -v2c -c public <target> CPQSCSI-MIB::cpqScsiPhyDrvLowReadSectors
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.232.5.2.4.1.1.12.1 snmpget -v2c -c public <target> CPQSCSI-MIB::cpqScsiPhyDrvLowReadSectors.1
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OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.232 | compaq | COMPAQ-ID-REC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.232.5 | cpqScsi | CPQSCSI-MIB |
| 1.3.6.1.4.1.232.5.2 | cpqScsiComponent | CPQSCSI-MIB |
| 1.3.6.1.4.1.232.5.2.4 | cpqScsiPhyDrv | CPQSCSI-MIB |
| 1.3.6.1.4.1.232.5.2.4.1 | cpqScsiPhyDrvTable | CPQSCSI-MIB |
| 1.3.6.1.4.1.232.5.2.4.1.1 | cpqScsiPhyDrvEntry | CPQSCSI-MIB |
| 1.3.6.1.4.1.232.5.2.4.1.1.12 | cpqScsiPhyDrvLowReadSectors | CPQSCSI-MIB |