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| ACL | Access Control List | 
| APC | American Power Conversion | 
| API | Application Program Interface | 
| ASM | Advanced System Management | 
| ASMA | Advanced System Management Adapter | 
| BIND | Berkeley Internet Name Domain | 
| BIOS | Basic Input Output System | 
| BSD | Berkeley Software Distribution | 
| CE | Customer Engineer | 
| CFM | Configuration File Manager | 
| CSM | Cluster Systems Management | 
| DCEM | Distributed Command Execution Manager | 
| DHCP | Dynamic Host Configuration Protocol | 
| DMS | Database and Distributed Management Server | 
| DNS | Domain Name System | 
| DSA | Digital Signature Algorithm | 
| DSH | Distributed Shell | 
| ERRM | Even Response Resource Manager | 
| ESP | Ethernet Serial Provider | 
| FAQ | Frequently Asked Questions | 
| FQDN | Fully Qualified Domain Name | 
| Gb | Gigabit | 
| GB | Gigabyte | 
| GBIC | GigaBit Interface Converter | 
| GPFS | General Parallel File System | 
| GPS | Global Positioning System | 
| GS | Group Services | 
| GSAPI | Group Services Application Program Interface | 
| GUI | Graphical User Interface | 
| HA | High availability | 
| IBM | International Business Machines Corporation | 
| IEEE | Institute of Electrical and Electronics Engineers, Inc. | 
| ISC | Internet Software Consortium | 
| ISO | International Organization for Standardization | 
| ITSO | International Technical Support Organization | 
| KVM | Keyboard Video Mouse Switch | 
| LKCD | Linux Kernel Crash Dump | 
| NFS | Network File System | 
| NIC | Network Interface Card | 
| NS | Name Server | 
| NSD | Network Shared Disk | 
| NTP | Network Time Protocol | 
| OEM | Original Equipment Manufacturer | 
| PCI | Peripheral Component Interconnect | 
| PCI | Peripheral Computer Interface | 
| PDU | Power Distribution Unit | 
| Perl | Practical Extraction and Report Language | 
| PID | Process Identifier | 
| POST | Power-On Self-Test | 
| PSSP | Parallel System Support Programs | 
| RAID | Redundant Array of Independent Disks | 
| RMC | Resource Monitoring and Control | 
| RPM | Red Hat Package Manager | 
| RR | Resource Record | 
| RSA | Remote Supervisor Adapter | 
| RSCT | Reliable Scalable Cluster Technology | 
| RSH | Remote Shell | 
| SCSI | Small Computer System Interface | 
| SNMP | Simple Network Management Protocol | 
| SOA | Start of Authority | 
| SPN | Service Processor Network | 
| SRC | System Resource Controller | 
| SSH | Secure Shell | 
| TB | Terabyte | 
| TCP | Transmission Control Protocol | 
| TFTP | Trivial File Transfer Protocol | 
| TTY | Teletypewriter | 
| UDP | User Datagram Protocol | 
| UPS | Uninterruptible power supply | 
| VFS | Virtual File System | 
| VLAN | Virtual Local Area Network | 
| WAN | Wide Area Network | 
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