Parameter Settings For The Amcc Adapters For The Sun Host System - IBM TotalStorage DS6000 Attachment Manual

Parameter settings for the AMCC adapters for the Sun host system

You can use these recommended settings for your AMCC adapters on a Sun host
system.
Table 11 on page 172 provides configuration settings that are recommended for the
supported adapters. For the most current information about fibre-channel adapter
parameter settings, see:
Table 10. Recommended configuration file parameters for the Emulex LP9002DC, LP9002L,
LP9002S, LP9402DC and LP9802 adapters (continued)
Parameters
no-device-delay
network-on
scan-down
tgt-queue-depth
topology
xmt-que-size
zone-rscn
Recommended settings
0: Default. Implies no delay whatsoever.
1: Recommended.
2: Setting a long delay value might permit I/O
operations to build up, each with a pending
time-out, which could result in the exhaustion
of critical Solaris kernel resources. In this
case, you might see a fatal message such
as, PANIC: Timeout table overflow.
0: Default. Recommended for fabric. Do not
turn on IP networking.
1: Turn on IP networking.
0: Recommended. Causes the driver to use
an inverted ALPA map, effectively scanning
ALPAs from high to low as specified in the
FC-AL annex.
2: Arbitrated loop topology.
0: Recommended. The default value that the
driver uses to limit the number of outstanding
commands per FCP target. This value is
global, affecting each target recognized by
the driver, but can be overridden on a
per-target basis. You might have to configure
RAID using the per-target tunable throttles.
2: Recommended for fabric. Point-to-point
topology only.
4: Recommended for nonfabric.
Arbitrated-loop topology only.
256: Default. Size of the transmit queue for
mbufs (128 - 10240).
0: Default.
1: Recommended for fabric. Check the name
server for RSCNs.
Setting zone-rscn to 1 causes the driver to
check with the name server to see if an
N_Port ID received from an RSCN applies. If
soft zoning is used with Brocade fabrics, this
parameter should be set to 1.
Chapter 18. Attaching to a Sun host
171