.Part 3 Host and Storage System Rules HP SAN Design Reference Guide 785353-001

Table 83 NonStop server configuration rules (continued)
Description
Rule
number
• The 2 Gb Fibre Channel PICs (VIO) are supported with 1 Gb/2 Gb CHIPs for XP
10000/12000/20000/24000 and with 4 Gb CHIPs for XP10000/12000/20000/24000.
• The 4 Gb Fibre Channel HBAs (in CLIMs) are supported with 1 Gb/2 Gb CHIPs for XP
10000/12000/20000/24000 and with 4 Gb CHIPs for XP10000/12000/20000/24000.
High-availability SAN15
• Requires dual-redundant SAN fabrics (level 4, NSPOF high-availability SAN configuration). For
information about data availability levels, see “Data availability” (page 38). Each fabric consists of
either a single switch or two cascaded switches, as shown in Figure 68 (page 185) through
Figure 75 (page 189).
• A single fabric supports a maximum of three switches.
• Requires separate fabric zones. Each zone consists of the set of NonStop host (FCSA, Fibre Channel
PIC, or CLIM) WWNs and XP storage system port WWNs to be accessed from a single NonStop
system.
• Configure WWN-based zoning only.
• Only NonStop homogeneous connections are allowed to the same zone.
• Heterogeneous operating systems can share the same switch or SAN if they are in different zones.
• HP recommends host-based mirroring. For example, each LDEV (P) is mirrored to a separate LDEV (M)
on separate XP ports (p, b, m, mb paths are used). A nonmirrored volume is allowed. For example,
each LDEV (P) is not mirrored to a separate LDEV (M) on separate XP ports (only p and b paths are
used).
• For high availability, primary (P) LDEVs and mirror (M) LDEVs must be configured on separate array
ACP pairs.
• For high availability, the p and b paths must be in separate XP array clusters. The m and mb paths
must be in separate array clusters.
• HP recommends that the p and mb paths be in the same XP array cluster, and the b and m paths be
together in the other XP array cluster for a volume.
• FCSAs (IOAMEs), Fibre Channel PICs (VIOs), FC HBAs (CLIMs), C-series switches, and B-series switches
are supported with 1 Gb/2 Gb CHIPs for XP10000/12000/20000/24000 and with 4 Gb CHIPs
for XP10000/12000/20000/24000.
NonStop servers (XP only) 183