Problem after upgrading Jaycor Driver with SecurePath 3.0D package

[Cecilia Mazzuca_1]

Hello,
We have a Solaris 2.6 with a JNI FC64-1063 HBA that have been runing with driver 2.5.9 for quite a while.
We have installed SecurePath a couple of months ago, but we are still having one HBA with only one EVA5000 controller zoned to it. At the time of installing secure path, the OS administrator answered NO to the question about upgrading drivers, so last monday we re-run the install_SP script in order to upgrade the JNI driver.

The fact is that the driver was upgraded with no problems but the system was not rebooted just after the upgrade, and 3 hours later (after de upgrade but before the reboot) the /var/adm/messages showed these errors:

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Sep 5 11:00:54 scsrv1 unix: fcaw0: LINK DOWN (180810f9)
Sep 5 11:00:54 scsrv1 unix: fcaw0: Target 32: Port 0a1c00 (50001fe15000d8a0:50001fe15000d8ad) offline.
Sep 5 11:00:54 scsrv1 unix: NOTICE: fcaw0 NPORT Initialization Complete, SID=4086ee
Sep 5 11:00:54 scsrv1 unix: fcaw0: LINK UP (180802ff)
Sep 5 11:00:55 scsrv1 unix: fcaw0: Host: Port 0a1f00 (100000e0694086ee:200000e0694086ee)
Sep 5 11:00:58 scsrv1 unix: WARNING: hsxTSIO: throttling hsx-12-32-13 back to 19 (old throttle = 32)
Sep 5 11:01:01 scsrv1 unix: WARNING: hsxTSIO: throttling hsx-7-32-8 back to 1 (old throttle = 32)
Sep 5 11:01:08 scsrv1 unix: fcaw0: LINK DOWN (180810f9)
Sep 5 11:01:08 scsrv1 unix: NOTICE: fcaw0 NPORT Initialization Complete, SID=4086ee
Sep 5 11:01:08 scsrv1 unix: fcaw0: LINK UP (180002ff)
Sep 5 11:01:09 scsrv1 unix: fcaw0: Host: Port 0a1f00 (100000e0694086ee:200000e0694086ee)
Sep 5 11:01:24 scsrv1 unix: fcaw0: Target 32: Port 0a1c00 (50001fe15000d8a0:50001fe15000d8ad) failed.
Sep 5 11:01:24 scsrv1 unix: CPQswsp: Path hsx-19-32-20 Failed (LUN 600508B40000C2750002100000850000 Controller P5849D19IO6037 Array 50001FE15000D8A0 HBA fca
Sep 5 11:01:24 scsrv1 unix: w-0)^M
Sep 5 11:01:24 scsrv1 unix: WARNING: CPQswsp: Availability for LUN 600508B40000C2750002100000850000 changed to Dead^M^M
Sep 5 11:01:24 scsrv1 unix: CPQswsp: Path hsx-18-32-19 Failed (LUN 600508B40000C27500021000007C0000 Controller P5849D19IO6037 Array 50001FE15000D8A0 HBA fca
Sep 5 11:01:24 scsrv1 unix: w-0)^M
Sep 5 11:01:24 scsrv1 unix: WARNING: CPQswsp: Availability for LUN 600508B40000C27500021000007C0000 changed to Dead^M^M
Sep 5 11:01:24 scsrv1 unix: CPQswsp: Path hsx-17-32-18 Failed (LUN 600508B40000C2750002100000790000 Controller P5849D19IO6037 Array 50001FE15000D8A0 HBA fca
Sep 5 11:01:24 scsrv1 unix: w-0)^M
.....
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After that, the only way to get out of this was to turn off and on the host... and everything went up with no problems...

Does anyone have any clue what could have happened?
Does anyone know what the throttling messages are?

Thanks in advance,
Cecilia