Dell EqualLogic PS6210E EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 15

Parameter

Recommended Value

(Decimal)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class

\{4d36e97b-e325-11ce-bfc1-08002be10318}\<Instance Number>

\Parameters\WMIRequestTimeout\

30

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Disk

\TimeOutValue

60

Only Windows Servers with MPIO

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iScsiPrt

\Parameters\IoTimeoutValue\

60 (if using MPIO)

300 (non-MPIO)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mpio

\Parameters\AdditionalCriticalWorkerThreads

0


\Parameters\AdditionalDelayedWorkerThreads

0


\Parameters\DiskPathCheckDisabled

0


\Parameters\DiskPathCheckEnabled

1


\Parameters\DiskPathCheckInterval\

15


\Parameters\FlushHealthInterval\

1440


\Parameters\GatherHealthStats\

1


\Parameters\LinkDownTime\

35


\Parameters\MaxRequestHoldTime\

300


\Parameters\PathRecoveryInterval\

60


\Parameters\PathVerificationPeriod\

20


\Parameters\PathVerifyEnabled\

0

HKEY_LOCAL_MACHINE\System\Current ControlSet\Services\mpio

\Parameters\PDORemovePeriod

240


\Parameters\RetryCount\

3


\Parameters\RetryInterval\

1


\Parameters\TcpMaxDataRetransmissions\

4


\Parameters\UseCustomPathRecoveryInterval\

1

Configure Your Microsoft Windows Operating System

15

Section	Page
Dell EqualLogic PS Series Storage Arrays iSCSI Initiator and Operating System Considerations Optimizing Your SAN Environment for High Availability	3
About This Manual	5
Audience	5
Related Documentation	5
Related Sites	5
Online Services	5
Dell EqualLogic Storage Solutions	6
Technical Support and Customer Service	6
Contacting Dell	6
Proactive Maintenance Support	6
About High-Availability iSCSI Data Transfer	7
High-Availability Procedures	7
Update Initiators and Drivers	7
Configure Your Hosts for High Availability	8
Host Integration Tools	8
Operating System Recommendations	8
Test Modifications in a Non-Production Environment	8
Increase Transmit and Receive Resource Settings	8
Operating System-Specific Configuration Information	8
Configure Your Network for High Availability	9
General Network Requirements	9
Design Network for Redundancy	9
Ports	9
Switches	9
FS Series Switch Requirements	11
Dell Networking N-Series Switching MPIO With M-LAG Advisory	11
Hardware Initiators	11
Configure Your Microsoft Windows Operating System	12
Procedure Summary	12
1. Install the Recommended Microsoft Hotfixes	12
2. Install the Host Integration Tools for Microsoft	13
3. Set the Registry Entries	13
Use the Registry Editor Carefully	13
4. Verify Microsoft Windows Guidelines	16
Application-Specific Events	16
Microsoft Windows Applications	16
Microsoft Exchange Server	16
Set Delay Between Login Attempts	16
Enable ICMP Echo Requests for iSCSI Initiators in Windows	17
Configure Your VMware Environment	18
Set iSCSI Login Timeout Value on vSphere 5.1 and 5.0	18
Storage Heartbeat on vSphere 5.0, 4.1, and 4.0	18
Configure Your Linux Operating System	20
Configure SCSI Device Settings Using the udev Facility	20
Increase SCSI Device Timeout Value to Avoid Disk I/O Timeouts	20
Increase SCSI Device Read-Ahead Buffer Size	20
Change SCSI Device I/O Scheduler Algorithm	20
Configure iSCSI Settings Using the /etc/iscsi/iscsid.conf File	20
Change FastAbort Setting in iSCSI Configuration File	20
Change node.startup Setting to Avoid Login Storms	20
Configure Linux Networking	21
Disable Generic Receive Offload	21
Enable Flow Control	21
Enable Jumbo Frames	21
Avoid ARP Flux	21
Loosen IPv4 Reverse Path Filtering	21
Summary of Recommended Changes	22
Configure Your Solaris 10 Operating System	23
Zero-Length Volumes	23
Configure Your IBM AIX Operating System	24

Dell EqualLogic PS6210E EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 15

Parameter, Recommended Value, Decimal, Only Windows Servers with MPIO, if using MPIO, non-MPIO

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