ClearPath Dorado 300/400/700/800/4000/4100/4200 Server I/O ...

Contents
4.4.4. Block Size ................................................................................ 4–20
4.4.5. Compression .......................................................................... 4–23
4.4.6. FURPUR COPY Options G, D, and E.................................. 4–24
4.5. Tape Drive Encryption .................................................................... 4–25
4.5.1. Tape Drives capable of supporting encryption ............. 4–26
4.5.2. Restrictions ............................................................................. 4–26
4.6. Sharing Tapes Across Multiple Partitions ................................. 4–26
4.6.1. Electronic Partitioning on Fibre Channel .......................... 4–27
4.6.2. Automation ............................................................................. 4–27
Section 5. Performance
5.1. Overview .............................................................................................. 5–1
5.1.1. Basic Concepts ......................................................................... 5–1
5.1.2. Performance Numbers and Your Site ............................... 5–10
5.2. SIOP ..................................................................................................... 5–11
5.2.1. SIOP Performance .................................................................. 5–13
5.2.2. Fibre HBA Performance ........................................................ 5–17
5.2.3. Sequential File Transfers ...................................................... 5–21
5.3. SCSI HBA ........................................................................................... 5–23
5.4. SBCON HBA ...................................................................................... 5–23
5.5. FICON HBA ........................................................................................ 5–24
5.6. Tape Drives per Channel Guidelines .......................................... 5–26
5.7. CIOP Performance—Communications ...................................... 5–26
5.8. Redundancy ...................................................................................... 5–27
5.8.1. Expansion Racks .................................................................... 5–27
5.8.2. Dual Channel HBAs and NICs ............................................. 5–27
5.8.3. Single I/O Modules ................................................................ 5–28
5.8.4. Configuration Recommendations ..................................... 5–28
Section 6. Storage Area Networks
6.1. Arbitrated Loop ................................................................................... 6–2
6.2. Switched Fabric ................................................................................. 6–4
6.3. Switches ............................................................................................... 6–7
6.4. Storage Devices ................................................................................. 6–7
6.4.1. Arbitrated Loop Devices Running in a SAN ....................... 6–7
6.4.2. T9840 Family of Tape Drives ............................................... 6–8
6.4.3. JBODs ........................................................................................ 6–8
6.4.4. SCSI/Fibre Channel Converters ............................................ 6–9
6.5. SAN Addressing ............................................................................... 6–10
6.5.1. OS 2200 Addressing .............................................................. 6–11
6.5.2. SCMS II ...................................................................................... 6–12
6.5.3. OS 2200 Console .................................................................... 6–13
6.5.4. SAN Addressing Examples .................................................. 6–14
6.6. Zoning .................................................................................................. 6–17
6.6.1. Zoning and 12-Bit OS 2200 Addressing ............................ 6–17
6.6.2. Guidelines ................................................................................. 6–17
6.6.3. Zoning Disks ............................................................................ 6–18
6.6.4. Zoning with Multiple Switches ........................................... 6–19
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