Performance; Distance; Zoning Database Limits; Extended Credit Distances - HP StorageWorks SN6000 Installation And Reference Manual

A zoning database is maintained on each switch.
the active zone set.
Table 3

Zoning database limits

Limit
MaxZoneSets
MaxZones
MaxAliases
MaxTotalMembers
MaxZonesInZoneSets
MaxMembersPerZone
MaxMembersPerAlias

Performance

The SN6000 Fibre Channel Switch supports class 2 and class 3 Fibre Channel service at transmission rates
of 8 Gb/s with a maximum frame size of 2,148 bytes. Related performance characteristics include the
following:
• Distance, page 20
• Bandwidth, page 21
• Latency, page 22

Distance

Consider the physical distribution of devices and switches in the fabric. Choose SFP transceivers that are
compatible with the cable type, distance, Fibre Channel revision level, and the device host bus adapter.
Each Fibre Channel port is supported by a data buffer with a 16 credit capacity; that is, 16 maximum sized
frames. For fibre optic cables, this enables full bandwidth over approximately 3 kilometers at 8 Gb/s (4.8
credits/km).
With the optional Enterprise Fabric Management Suite application, longer distances can be spanned at
full bandwidth on SFP ports by extending credits to G_Ports, F_Ports, and E_Ports. Each port can donate 15
credits to a pool from which a recipient port can borrow. However, SFP ports can borrow only from other
SFP ports. XPAK ports cannot borrow or donate credits. The recipient port also loses a credit in the process.
For example, you can configure an SFP recipient port to borrow 15 credits from one donor port for a total
of 30 credits (15+15=30). For more information about Enterprise Fabric Management Suite, see
"Enterprise Fabric Management
Table 4 describes the possible distances for a port with 30 credits as an example.
Table 4

Extended credit distances

Transmission Speed
1 Gb/s
2 Gb/s
4 Gb/s
8 Gb/s
20
Table 3
Description
Maximum number of zone sets (256).
Maximum number of zones (2,000).
Maximum number of aliases (2,500).
Maximum number of zone and alias members (10,000) that
can be stored in the zoning database. Each instance of a zone
member or alias member counts toward this maximum.
Maximum number of zones that are components of zone sets
(2,000), excluding the orphan zone set. Each instance of a
zone in a zone set counts toward this maximum.
Maximum number of members in a zone (2,000).
Maximum number of members in an alias (2,000)
Suite" (page 18).
Range for 30 Credits
50 kilometers (30÷0.6)
25 kilometers (30÷1.2)
12 kilometers (30÷2.4)
6 kilometers (30÷4.8)
describes the zoning database limits, excluding