Monitor Quantum Scalar i3 Tape Libraries via SNMPv3

Project Notes

## Plugin Description

This plugin monitors the health of a **Quantum Scalar i3 tape library** over SNMP, specifically tailored for environments using **SNMPv3 with authentication only** (`authNoPriv`).

---

## ? Features

- Supports **SNMPv2c** and **SNMPv3 (authNoPriv)**
- Clean CLI argument interface: `--host`, `--user`, `--authpass`, etc.
- Friendly, readable output format
- Proper Nagios exit codes: `OK`, `WARNING`, `CRITICAL`, `UNKNOWN`
- Monitors 5 key subsystems:
- Library Global Status
- RAS Subsystem Status
- Drive Subsystem Status
- Media Subsystem Status
- Physical Library State

---

## ???? Example Output

```
OK - All systems operational
Library Status : greenGood
RAS Subsystem : greenGood
Drive Subsystem : greenGood
Media Subsystem : greenGood
Library State : ready
```

---

## ?? Requirements

- Nagios / Icinga / any compatible monitoring engine
- Bash shell
- SNMP tools (`snmpget`)
- Quantum Scalar i3 with SNMPv3 enabled (`authNoPriv`)

???? For SNMPv3 setup on the Scalar i3, refer to Quantum's official guide:
[Scalar i3/i6 SNMP Guide (PDF)](https://qsupport.quantum.com/kb/flare/content/Scalar_i3/downloads/SupDocs/6-68533-02_RevB_Scalar_i3_i6_SNMP_Guide.pdf)

---

## ????? Usage

```bash
check_scalar_i3.sh [OPTIONS]
```

### Required
```
--host <hostname or IP>
--version <v2c | v3>
```

### SNMP v2c
```
--community <community string>
```

### SNMP v3
```
--user <username>
--authproto <MD5 | SHA>
--authpass <auth password>
```

### Other
```
--help Show this help text
```

---

## ???? Example

```bash
./check_scalar_i3.sh
--host 192.168.1.2
--version v3
--user admin
--authproto MD5
--authpass "MySecretPassword"
```