Dell EqualLogic PS6210X EqualLogic PS Series Storage Arrays iSCSI Initiator an
Dell EqualLogic PS6210X Manual
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- Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 1
Dell EqualLogic PS Series Storage Arrays iSCSI Initiator and Operating System Considerations Optimizing Your SAN Environment for High Availability - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 2
of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2018 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 3
Contents 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 1 About High-Availability iSCSI Data Transfer 7 High- - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 4
B 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 C Configure Your Linux Operating System 20 Configure SCSI Device Settings Using the udev Facility 20 Increase SCSI Device Timeout Value to Avoid Disk - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 5
/storage/w/wiki/equallogic-configuration-guide • The support site contains the latest Dell EqualLogic firmware compatibility information. See: eqlsupport.dell.com/support/download.aspx?id=6442454231&langtype=1033 Online Services To learn about Dell products and services: 1. Visit dell.com or - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 6
new releases being planned, visit the Dell EqualLogic TechCenter site: Dell EqualLogic TechCenter. You can also see articles, demos, online discussions, and more details about the benefits of our product family. Technical Support and Customer Service Dell support service is available to answer your - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 7
example, problems with software service issues with Dell EqualLogic SANs. NOTE: If you have a Dell proactive service agreement, your Dell Technical Support Dell recommends that you keep initiators and drivers up to date. A list of supported initiators can be found in the PS Series Configuration Guide - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 8
Dell's recommended best practices. You can download the Dell EqualLogic Host Integration Tools kits from the eqlsupport.dell.com website, and install them on supported the transmit and receive resource settings, which can help minimize this problem. For example, on a Windows system, you might be able - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 9
network design and configuration information to support the use of a Dell EqualLogic SAN, see the PS Series Configuration Guide. This guide can be downloaded from: http://en.community.dell.com/techcenter/storage/w/wiki/equallogic-configuration-guide General Network Requirements This section outlines - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 10
") between each group. See Dell's switch configuration guides for specific switch vendor and model settings and best practices. Examples and detailed instructions for configuring SAN network switches and hosts can be obtained through the Rapid EqualLogic Configuration Portal or by reviewing - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 11
dell.com/techcenter/storage/w/wiki/4250.switch-configuration-guides Dell Networking N-Series Switching MPIO With M-LAG Advisory For EqualLogic support a variety of enhancements such as iSCSI Offload and DCB, making them more than just a hardware initiator. Of the major CNAs supported by EqualLogic - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 12
Microsoft and proceed to step 4. This kit can be downloaded from eqlsupport.dell.com. 3. (Optional) Set the registry entries if the Host Integration -2012.aspx support.microsoft.com/kb/2784261 List of hotfixes and updates for Windows Server 2012based failover clusters support.microsoft.com/kb - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 13
this kit from the eqlsupport.dell.com/support website, and install it on supported operating systems. Dell EqualLogic Host Integration Tools for Microsoft problems that require reinstallation of the operating system. Dell and Microsoft cannot guarantee that you will be able to solve problems that - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 14
Parameter HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class \{4d36e97b-e325-11ce-bfc1-08002be10318}\ \Parameters\ImmediateData HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class \{4d36e97b-e325-11ce-bfc1-08002be10318}\ \Parameters\InitialR2T - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 15
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class \{4d36e97b-e325-11ce-bfc1-08002be10318}\ \Parameters\WMIRequestTimeout\ HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Disk \TimeOutValue Only Windows Servers with MPIO HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 16
Parameter HKEY_LOCAL_MACHINE\System\Current ControlSet\Services\mpio \Parameters\UseCustomPathRecoveryInterval Recommended Value (Decimal) 1 4. Verify Microsoft Windows Guidelines Application-Specific Events Applications that run in an iSCSI environment are sometimes directly affected by - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 17
ICMP Echo message (also known as an ICMP Echo Request message). Dell recommends changing Firewall settings to allow ICMP echo for ICMPv4, or for ICMPv6 if using an IPv6 initiator. See the Windows Firewall documentation for instructions on creating inbound custom rules to allow ICMPv4 and ICMPv6 Echo - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 18
more detailed information, see Tech Report TR1091, Best Practices for Implementing VMware vSphere in a Dell Equallogic PS Series SAN Environment. This tech report is available from: http://en.community.dell.com/techcenter/extras/m/white_papers/20434601/download.aspx Set iSCSI Login Timeout Value on - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 19
value. 3. Due to improvements in later ESXi releases, it is no longer necessary to implement the Storage Heartbeat VMkernel port. 4. The Dell EqualLogic Multipathing Extension Module for vSphere (MEM) depends on the vSphere Storage APIs for Multipathing, which are available only under Enterprise or - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 20
Completely Fair Queuing) is set to noop. The specific udev rule implemented by HIT/Linux is installed in the file named /lib/udev/rules.d/38-equallogic.rules. ATTR{queue/scheduler}="noop" Configure iSCSI Settings Using the /etc/iscsi/iscsid.conf File The following changes should be made in the Linux - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 21
manual Configure Linux Networking Dell recommends that you configure multipathing for Ethernet interfaces on a Linux host to connect to an EqualLogic the command to the /etc/rc.local directory. Enable Jumbo Frames If supported by your networking infrastructure, enabling jumbo frames (that is, an MTU - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 22
settings node.startup automatic manual Ethernet devices Generic Receive 0 2 1 Verify that the network infrastructure supports these two settings (flow control and jumbo frames Optional Changes lists other changes to Linux settings that Dell suggests should be applied to /etc/sysctl.conf. - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 23
prevent the Solaris initiator from discovering it. • Make sure the volume does not allow unrestricted access. It is also possible that, after the EqualLogic Remote Setup Wizard is run, the vss-control ACL uses CHAP. Using the CHAP discovery filter would also prevent Solaris from discovering it. You - Dell EqualLogic PS6210X | EqualLogic PS Series Storage Arrays iSCSI Initiator an - Page 24
can be corrected by applying a patch to your AIX system. For more information, contact your IBM customer support provider and reference incident number IZ90885, or visit: ibm.com/support/docview.wss?uid=isg1IZ90885&crawler=1 NOTE: As a short-term workaround, before applying the patch, disable the PS
Dell EqualLogic PS Series Storage Arrays
iSCSI Initiator and Operating System Considerations
Optimizing Your SAN Environment for High Availability