Setting for sd_max_throttle

From: Johan Hartzenberg (jhartzen@csc.com)
Date: Thu Sep 19 2002 - 09:28:50 EDT


Hi All,

Any suggestions on setting sd_max_throttle ?

I currently have lots of instability on SAN connected hosts, and the only
clue I have is that this value may be set wrong.

Sun has got some open calls on this, but I need a solution faster.

35 Hosts, configured with a total of 60 Initiators (some dual-port JNI
cards, some single-port cards).

2 x HDS 9960s, one with 4 ports on the SAN, the other with 8 ports on the
SAN.

On average 30 LUNs published per port and protected by Santinel on the HDS.

The UNIX hosts are in a single zone for access to disk.

The SAN is made up of two FC9000 director-class switches.

Also, how do I know if I need to change maxphys ?

Thanx,
  _Johan
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