EqualLogic PS4000 SAN trunk to Procurve 2910al

[Steve Hoddinott]

Hi, I have configured a trunk between our EqualLogic PS4000 and switch, but I am seeing multiple and constant errors on the switch ports connected to the equallogic, that are seriously effecting performance:

        Excessive CRC/Alignment errors and Excessive jabbering/fragmentation

I have found several posts on configuring procurve trunks to work with EqualLogic SANS but no diffinative answer.

Spanning Tree is globally disabled on the switch:

     show spanning-tree

             STP Enabled: No

Apart from ports 1-2 that are used for Management, all ports are available for use by the iSCSI network, connecting the EqualLogic to the Servers  via the 2910al.

Can nayone see anything obviously wrong with my switch configuration below.

#################################

SW-UPSMO-SAN1# show running

Running configuration:

; J9145A Configuration Editor; Created on release #W.14.49

hostname "SW-UPSMO-SAN1"
module 1 type J9145A
interface 3
   flow-control
exit
interface 4
   flow-control
exit
interface 5
   flow-control
exit
interface 6
   flow-control
exit
interface 7
   flow-control
exit
interface 8
   flow-control
exit
interface 9
   flow-control
exit
interface 10
   flow-control
exit
interface 11
   flow-control
exit
interface 12
   flow-control
exit
interface 13
   flow-control
exit
interface 14
   flow-control
exit
interface 15
   flow-control
exit
interface 16
   flow-control
exit
interface 17
   flow-control
exit
interface 18
   flow-control
exit
interface 19
   flow-control
exit
interface 20
   flow-control
exit
interface 21
   flow-control
exit
interface 22
   flow-control
exit
interface 23
   flow-control
exit
interface 24
   flow-control
exit
trunk 23-24 Trk1 LACP
ip routing
vlan 1
   name "DEFAULT_VLAN"
   untagged 3-22,Trk1
   ip address 192.168.2.246 255.255.255.0
   no untagged 1-2
   jumbo
   exit
vlan 10
   name "Management"
   untagged 1-2
   ip address 10.53.21.110 255.255.255.0
   exit
no fault-finder broadcast-storm
ip route 0.0.0.0 0.0.0.0 10.53.21.254
snmp-server community "public" unrestricted
snmp-server location "Portsmouth"
spanning-tree Trk1 priority 4
no autorun
password manager
password operator

 #####################################

[Steve Hoddinott]

The firmware on the EqualLogic PS4000 was the main cause of this problem.

Upgrading from v5.0.7 to v5.0.8 stopped all of the errors on the switch.

I was then also able to enable spanning-tree on the switch, without any problems.