We're just rolling a system onto a Lefthand iSCSI SAN from a rather decrepit FC Xyratex based SAN and seeing a performance drop.

I'm aware there are a couple of people out there happy with their lefthand sans and wondered if they had any specific settings they were using either on their Lefthand boxes or on the initiator/network or NSS settings.

We are running NW65SP7 on a couple of Dell 2650s in a 2 node cluster and seeing limited disk IO and throughput in comparasin to the old SAN. They have 3 network cards (1 for client connectivity and 2 for SAN connectivity using load sharing and fault tolerance settings).

The old system used to run constantly at approx 5000 IOPs and peak at 30000 whereas we are only getting 1500 IOPS and peaks at 8000 since swap over. This is on a 1.3TB NSS volume with 20 million files.

iSCSI report below

Thanks for any assistance
Martyn

[NetWare NLM Information]
SCSIHD.CDM
IOCTL.NLM
ISCSILIB.NLM
ISCSINIT.NLM
ISCSIHAM.HAM
ISCSINRM.NLM
ISCSIXML.NLM


[SCSIHD.CDM Module]
Filename="SCSIHD.CDM"
Name="Novell NetWare SCSI Fixed Disk Custom Device Module"
MajorVersion=3
MinorVersion=3
Revision=8
Year=2007
Month=1
Day=9
Copyright="Copyright (c) 1995-2007 Novell, Inc. All Rights Reserved."
LoadPath="C:\NWSERVER\DRIVERS\"


[IOCTL.NLM Module]
Filename="IOCTL.NLM"
Name="NetWare IoCtl Library"
MajorVersion=1
MinorVersion=6
Revision=3
Year=2007
Month=9
Day=12
Copyright="Copyright 2002-2007 Novell, Inc. All rights reserved."
LoadPath="SYS:SYSTEM\"


[ISCSILIB.NLM Module]
Filename="ISCSILIB.NLM"
Name="NetWare iSCSI Library"
MajorVersion=1
MinorVersion=6
Revision=3
Year=2007
Month=9
Day=12
Copyright="Copyright 2002-2007 Novell, Inc. All rights reserved.
Portions Copyright (c) 2000, Intel Corporation. All rights reserved."
LoadPath="SYS:SYSTEM\"


[ISCSINIT.NLM Module]
Filename="ISCSINIT.NLM"
Name="NetWare iSCSI Initiator"
MajorVersion=1
MinorVersion=6
Revision=3
Year=2007
Month=9
Day=12
Copyright="Copyright 2002-2007 Novell, Inc. All rights reserved.
Portions Copyright (c) 2000, Intel Corporation. All rights reserved."
LoadPath="SYS:SYSTEM\"


[ISCSIHAM.HAM Module]
Filename="ISCSIHAM.HAM"
Name="NetWare iSCSI HAM Driver"
MajorVersion=1
MinorVersion=6
Revision=3
Year=2007
Month=9
Day=12
Copyright="Copyright 2002-2007 Novell, Inc. All rights reserved."
LoadPath="SYS:SYSTEM\"


[ISCSINRM.NLM Module]
Filename="ISCSINRM.NLM"
Name="NetWare iSCSI NRM Extension Module"
MajorVersion=1
MinorVersion=6
Revision=3
Year=2007
Month=9
Day=12
Copyright="Copyright 2002-2007 Novell, Inc. All rights reserved."
LoadPath="SYS:SYSTEM\"


[ISCSIXML.NLM Module]
Filename="ISCSIXML.NLM"
Name="NetWare iSCSI XML Interface"
MajorVersion=1
MinorVersion=6
Revision=3
Year=2007
Month=9
Day=12
Copyright="Copyright 2002-2005 Novell, Inc. All rights reserved."
LoadPath="SYS:SYSTEM\"


[iSCSI Master Parameters]
InitiatorName="iqn.1984-08.com.novell:.edu2.education.kings_lynn.norfolk_c ollege.norfolk_college."
InitiatorAlias="EDU2"
AuthMethod="None"
HeaderDigest="None"
DataDigest="None"
MaxConnections="4"
InitialR2T="Yes"
ImmediateData="Yes"
MaxRecvDataSegmentLength="131072"
MaxBurstLength="131072"
FirstBurstLength="131072"
DefaultTime2Wait="2"
DefaultTime2Retain="20"
MaxOutstandingR2T="1"
DataPDUInOrder="Yes"
DataSequenceInOrder="Yes"
ErrorRecoveryLevel="0"

[iSCSI HAM]
SCSI requests=41647
SCSI requests executed=65285
SCSI requests queued=20250
SCSI requests aborted=0
HAM Scan Devices requests=5
SCSI lan requests=41370
SCSI lan requests no free conns=23638
SCSI lan requests aborted=0
DeviceHandle=0x00000000

[DeviceHandle=0x00000000]
VenderID="LEFTHAND"
ProductID="iSCSIDisk "
RevisionLevel="7001"
DeviceAddress=0x28EAF0E0
DeviceLanHandle=33554434
DeviceType=0x0
DeviceLun=0
DeviceSCSIID=2
MaximumFragmentSize=131072
MaximumNumberOfFragments=64
MaximumTransferSize=131072
DeviceRequests=65003
DeviceRequestsQueued=43888
DeviceRequestsAborted=0
DeviceUnitSize=512
DevicePreferredUnitSize=512
DeviceBlockSize=256
DeviceCapacity=-1503238656
TotalCapacitySize=""


[iSCSI HAM LogFile]
0x00000000="[i] iscsiham.ham [09-12-2007] Version 1.06.03"
0x00000001="[!] Receive_HACB hacb=80851F20 hatype=HAM_HACB"
0x00000002="[!] Receive_HACB hacb=80853820 hatype=HAM_HACB"
0x00000003="[!] Receive_HACB hacb=80853820 hatype=HAM_HACB"
0x00000004="[!] Receive_HACB hacb=80853E20 hatype=HAM_HACB"
0x00000005="[!](3) AEN HACB recievied hacb=80853E20 parm0=0x00000020"
0x00000006="[!] Receive_HACB hacb=80853020 hatype=HAM_HACB"
0x00000007="[iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1] MaxRecvDataSegmentLength=131072"
0x00000008="[iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1] MaxBurstLength=131072"
0x00000009="[iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1] FirstBurstLength=131072"
0x0000000A="[i] Target iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1 maxBuffSize=131072 maxElementSize=131072 maxElements=64"
0x0000000B="[!] Receive_HACB hacb=80853020 hatype=HAM_HACB"
0x0000000C="[!] Receive_HACB hacb=80853020 hatype=HAM_HACB"
0x0000000D="[!] Receive_HACB hacb=80851F20 hatype=HAM_HACB"
0x0000000E="[!](3) AEN HACB recievied hacb=80851F20 parm0=0x00000020"
0x0000000F="[!] Receive_HACB hacb=80853E20 hatype=HAM_HACB"
0x00000010="[!] Receive_HACB hacb=80853420 hatype=HAM_HACB"
0x00000011="[!](4) Executehacb=80853420 Unknown hatype (0) hacbCompletion=UNSUPPORTED_HACB_TYPE_ZERO_FUNCTION "
0x00000012="[!] Receive_HACB hacb=80852120 hatype=HAM_HACB"
0x00000013="[!](3) AEN HACB recievied hacb=80852120 parm0=0x00000010"
0x00000014="[!] Receive_HACB hacb=80852020 hatype=HAM_HACB"
0x00000015="[!] CheckDeviceBusy(0x02000002] target iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1"
0x00000016="[!] Receive_HACB hacb=80852020 hatype=HAM_HACB"
0x00000017="[!] Receive_HACB hacb=80852020 hatype=HAM_HACB"
0x00000018="[!] Receive_HACB hacb=80852120 hatype=HAM_HACB"
0x00000019="[!](3) AEN HACB recievied hacb=80852120 parm0=0x00000020"
0x0000001A="[!] Receive_HACB hacb=80853C20 hatype=HAM_HACB"
0x0000001B="[!] Receive_HACB hacb=80853E20 hatype=HAM_HACB"
0x0000001C="[!](3) AEN HACB recievied hacb=80853E20 parm0=0x00000010"
0x0000001D="[!] Receive_HACB hacb=80851E20 hatype=HAM_HACB"
0x0000001E="[!] EXIT ScanEvent failed hacb=80851E20 case[2] != 0" (LOTS OF THESE - MISSED AS TOO LARGE A FILE TO POST)
0x0000021B="[!] Receive_HACB hacb=80851E20 hatype=HAM_HACB"
0x0000021C="[!] CheckDeviceBusy(0x02000002] target iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1"
0x0000021D="[!] Receive_HACB hacb=80851E20 hatype=HAM_HACB"
0x0000021E="[!] Receive_HACB hacb=80851E20 hatype=HAM_HACB"
0x0000021F="[!] Receive_HACB hacb=80851F20 hatype=HAM_HACB"
0x00000220="[!](3) AEN HACB recievied hacb=80851F20 parm0=0x00000020"
0x00000221="[!] Receive_HACB hacb=80853020 hatype=HAM_HACB"
0x00000222="[!] CheckDeviceBusy(0x02000002] target iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1"
0x00000223="[!] Receive_HACB hacb=80853020 hatype=HAM_HACB"
0x00000224="[!] Receive_HACB hacb=80853020 hatype=HAM_HACB"
0x00000225="[!] Receive_HACB hacb=80853620 hatype=HAM_HACB"
0x00000226="[!](3) AEN HACB recievied hacb=80853620 parm0=0x00000020"
0x00000227="[!] Receive_HACB hacb=80853420 hatype=HAM_HACB"
0x00000228="[!] Receive_HACB hacb=80852120 hatype=HAM_HACB"
0x00000229="[!](3) AEN HACB recievied hacb=80852120 parm0=0x00000010"


[Device (ID0 LAN02000002) =02000002.DEV LogFile]



[iSCSI Initiator]
TargetName="iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1"


[iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1]
TargetSessionID=33554434
TargetIpAdress=192.168.80.19:3260
TargetRequests=41461
TargetErrors=0
TargetAlias="iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1"
TargetMaximumConnections=1

[TargetConnection 0]
ConnectionID=0
Requests=41461
Errors=0
iSCSI SCSI_Requests=41370
iSCSI SCSIResponses=41370
iSCSI Task_Commands=0
iSCSI NOP_Out_Commands=89
iSCSI NOP_In_Commands=89
iSCSI TextRequests=0
iSCSI TextResponses=0
iSCSI LoginRequests=1
iSCSI LoginResponses=1
iSCSI LogoutRequests=0
iSCSI LogoutResponses=0
iSCSI R2T_Commands=0
iSCSI Write_Data_Commands=0
iSCSI Read_Data_Commands=0
iSCSI Reject_Commands=0
iSCSI AuthMethod="None"
iSCSI HeaderDigest="None"
iSCSI DataDigest="None"
iSCSI MaxConnections="1"
iSCSI TargetName="iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1"
iSCSI InitiatorName="iqn.1984-08.com.novell:.edu2.education.kings_lynn.norfolk_c ollege.norfolk_college."
iSCSI InitiatorAlias="EDU2"
iSCSI TargetAddress="192.168.80.19:3260,1"
iSCSI InitialR2T="Yes"
iSCSI ImmediateData="Yes"
iSCSI MaxRecvDataSegmentLength="131072"
iSCSI MaxBurstLength="131072"
iSCSI FirstBurstLength="131072"
iSCSI DefaultTime2Wait="2"
iSCSI DefaultTime2Retain="20"
iSCSI MaxOutstandingR2T="1"
iSCSI DataPDUInOrder="Yes"
iSCSI DataSequenceInOrder="Yes"
iSCSI ErrorRecoveryLevel="0"
iSCSI SessionType="Normal"



[iSCSI Initiator LogFile]
0x00000000="[i] iscsinit.nlm [09-12-2007] Version 1.06.03"
0x00000001="[!] check scan state == 0"
0x00000002="[!] check scan state == 0"

0x00000003="[!] check scan state == 0"


[iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1=I2000002 LogFile]


[iqn.2003-10.com.lefthandnetworks:cowa:65:edudata-eduvol1=I2000002.0 LogFile]


[Initiator Reconnect LogFile]
0x00000000="[i] iscsinit.nlm [09-12-2007] Version 1.06.03"



[iSCSI Memory Logfiles]
LogFileName=iSCSI Library

[iSCSI Library LogFile]