HP StorageWorks 2/16V HP StorageWorks Fabric OS 5.3.x administrator guide (569 - Page 343

Extended ISL modes for 4/32B SAN Switch, 400 MP Router, 4/256 SAN Director switches

Page 343 highlights

Extended ISL modes for 4/32B SAN Switch, 400 MP Router, 4/256 SAN Director switches, and FR4-18i blade (Condor ASIC) Table 77 lists the extended ISL modes for switches and blades that have a Condor ASIC. Table 77 Extended ISL modes: 4/32B SAN Switch, 400 MP Router, 4/256 SAN Director switches, FR4-18i blades (Condor ASIC) Mode Buffer allocation 1 Gbps 2 Gbps 4 Gbps Distance @ 1 Distance @ Gbps 2 Gbps Distance @ 4 Gbps Earliest Fabric OS release Extended Fabrics license required? L0 5 (26)1 5 (26) 5 (26) 10 km 5 km 2 km All No LE 11 16 26 10 km L0.52 18 31 56 25 km L12 31 L22 56 LD3 Auto 56 106 Auto 106 206 Auto 50 km 100 km Auto Maximum is 500 km LS4 Based on Based on Based on Based on user-speci user-specif user-specif user-specified fied ied ied distance distance distance distance Maximum is 500 km 10 km 25 km 50 km 100 km Auto Maximum is 250 km Based on user-specified distance Maximum is 250 km 10 km 25 km 50 km 100 km Auto Maximum is 100 km Based on user-specified distance Maximum is 100 km v3.x, v4.x No v3.1.0, v4.1.0, v4.x, Yes v5.x All Yes All Yes v3.1.0, v4.1.0, Yes v4.4.0, v5.x (depending on the model) v5.1.0 Yes 1. For each data channel (in this case, there are 4) there are 5 credits, plus 6 extra credits. 2. This mode is supported but cannot be configured on switches running Fabric OS v5.2.0 and later. 3. The dynamic long-distance mode (LD) automatically configures the number of buffer credits required, based on the actual link distance. 4. The static long-distance mode (LS) allocates the number of buffer credits based on the user-specified distance. Configuring external ports The number of ports that can be configured per port group for each switch depends on both port speed and distance. The following sections specify the number of external ports available for each switch at a specific port speed and distance. 4/8 SAN Switch or 4/16 SAN Switch Table 78 lists the number of ports that can be configured per port group at various distances. Table 78 4/8 SAN Switch or 4/16 SAN Switch Speed (Gbps) Number of ports allowed at distance (km) 10 km 25 km 50 km 100 km 250 km 500 km 1 16 ports 12 ports 6 ports 3 ports 1 port n/a 2 16 ports 6 ports 3 ports 1 port n/a n/a 4 8 ports 3 ports 1 port 0 n/a n/a Fabric OS 5.3.0 administrator guide 355

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Fabric OS 5.3.0 administrator guide
355
Extended ISL modes for 4/32B SAN Switch, 400 MP Router, 4/256 SAN Director
switches, and FR4-18i blade (Condor ASIC)
Table 77
lists the extended ISL modes for switches and blades that have a Condor ASIC.
Configuring external ports
The number of ports that can be configured per port group for each switch depends on both port speed
and distance. The following sections specify the number of external ports available for each switch at a
specific port speed and distance.
4/8 SAN Switch or 4/16 SAN Switch
Table 78
lists the number of ports that can be configured per port group at various distances.
Table 77
Extended ISL modes: 4/32B SAN Switch, 400 MP Router, 4/256 SAN Director switches, FR4-18i blades
(Condor ASIC)
Mode
Buffer allocation
Distance @ 1
Gbps
Distance @
2 Gbps
Distance @
4 Gbps
Earliest Fabric
OS release
Extended
Fabrics
license
required?
1 Gbps
2 Gbps
4 Gbps
L0
5 (26)
1
5 (26)
5 (26)
10 km
5 km
2 km
All
No
LE
11
16
26
10 km
10 km
10 km
v3.x, v4.x
No
L0.5
2
18
31
56
25 km
25 km
25 km
v3.1.0, v4.1.0, v4.x,
v5.x
Yes
L1
2
31
56
106
50 km
50 km
50 km
All
Yes
L2
2
56
106
206
100 km
100 km
100 km
All
Yes
LD
3
Auto
Auto
Auto
Auto
Maximum is
500 km
Auto
Maximum is
250 km
Auto
Maximum is
100 km
v3.1.0, v4.1.0,
v4.4.0, v5.x
(depending on the
model)
Yes
LS
4
Based on
user-speci
fied
distance
Based on
user-specif
ied
distance
Based on
user-specif
ied
distance
Based on
user-specified
distance
Maximum is
500 km
Based on
user-specified
distance
Maximum is
250 km
Based on
user-specified
distance
Maximum is
100 km
v5.1.0
Yes
1.
For each data channel (in this case, there are 4) there are 5 credits, plus 6 extra credits.
2.
This mode is supported but cannot be configured on switches running Fabric OS v5.2.0 and later.
3.
The dynamic long-distance mode (LD) automatically configures the number of buffer credits required, based on the actual link distance.
4.
The static long-distance mode (LS) allocates the number of buffer credits based on the user-specified distance.
Table 78
4/8 SAN Switch or 4/16 SAN Switch
Speed
(Gbps)
Number of ports allowed at distance (km)
10 km
25 km
50 km
100 km
250 km
500 km
1
16 ports
12 ports
6 ports
3 ports
1 port
n/a
2
16 ports
6 ports
3 ports
1 port
n/a
n/a
4
8 ports
3 ports
1 port
0
n/a
n/a