Compaq StorageWorks HSG60 ACS Solution V8.6 for SGI IRIX Installation and Configuration Guide

Figures
Figure 1 General configuration flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Figure 2 Configuring storage with the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Figure 3 Configuring storage with SWCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
Figure 1–1 Location of controllers and cache modules in a Model 2100 enclosure . . . . . . . . . . . 1–2
Figure 1–2 “This controller” and “other controller” for the Model 2100 enclosure . . . . . . . . . . . 1–3
Figure 1–3 Transparent failover−normal operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Figure 1–4 Transparent failover−after failover from controller B to controller A . . . . . . . . . . . . 1–6
Figure 1–5 Mirrored caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–9
Figure 1–6 Connections in separate-link, transparent failover mode configurations . . . . . . . . . 1–12
Figure 1–7 Connections in single-link, transparent failover mode configurations . . . . . . . . . . . 1–13
Figure 1–8 LUN presentation to hosts, as determined by offset . . . . . . . . . . . . . . . . . . . . . . . . . 1–15
Figure 1–9 Limiting host access in transparent failover mode . . . . . . . . . . . . . . . . . . . . . . . . . . 1–17
Figure 1–10 Placement of the worldwide name label on the Model 2100 enclosure . . . . . . . . . 1–18
Figure 2–1 PTL naming convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
Figure 2–2 PTL addressing in a single-bus configuration, using two shelves . . . . . . . . . . . . . . . 2–4
Figure 2–3 PTL addressing in a dual-bus configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Figure 2–4 Mapping a unit to physical disk drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Figure 2–5 Container types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
Figure 2–6 An example storageset profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
Figure 2–7 A 3-member RAID 0 stripeset (example 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–11
Figure 2–8 A 3-member RAID 0 stripeset (example 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–12
Figure 2–9 Mirrorsets maintain two copies of the same data . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–14
Figure 2–10 Mirrorset example 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–14
Figure 2–11 A five member RAIDset using parity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–16
Figure 2–12 Striped mirrorset (example 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–18
Figure 2–13 Striped mirrorset (example 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–18
Figure 2–14 One example of a partitioned single-disk unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–19
Figure 2–15 Chunk size larger than the request size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–24
Figure 2–16 Chunk size smaller than the request size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–25
Figure 2–17 Example storage map-single bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–28
Figure 2–18 Example storage map-dual bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–29
Figure 4–1 An example of a network connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4