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WHITE PAPER
USING IOMEGA STORCENTER
PRO ix4-200r NAS SERVER WITH
VMWARE ESX SERVER 3.5
Introduction 2 2
Audience 3 3
Terminology 3 3
Solution Configuration 3 3
Hardware 3 3
Software 4 4
4 4
Deployment Roadmap
NIC & SCSI Initiator Configuration 5 5
5 5
VMkernel Port Configuration
Adding a Share on StorCenter 8 8
Creating a NFS Datastore on ESX Server 1 11 1
Adding an iSCSI LUN on StorCenter 1 15 5
Creating a VMFS Datastore on ESX Server 1 17 7
Adding an RDM Disk to Virtual Machine 2 24 4
Multipat
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 EXECUTIVE SUMMARY ® VMware ESX Server is virtual infrastructure software for consolidating and managing systems. ESX Server accelerates service deployments and adds management flexibility by partitioning x86 servers into a pool of secure, portable and hardware-independent virtual machines. VMware Virtual Infrastructure and ESX Server have gained tremendous attraction and acceptance in the industry and are considered critical IT components for en
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 AUDIENCE Information contained in this white paper is intended for Iomega customers, partners, and service personnel involved in planning, architecting, or administering a VMware environment with an Iomega StorCenter NAS as the storage device. The readers are expected to have experience with ESX Server and an Iomega StorCenter NAS devices that run EMC Lifeline software. TERMINOLOGY t Datastore: A file system, either VMFS or NFS, that serves as a
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 SOFTWARE Table 2 lists the software resources used in the testing environment. Software Quantity Configuration EMC Lifeline 2.0 one EMC firmware that runs the Iomega StorCenter Pro ix4-200r NAS VMware ESX Server 3.5 one Installed on a Dell PowerEdge 1850 machine VMware Virtual Infrastructure 2.0 one Installed on a Windows client DEPLOYMENT ROADMAP Following its installation and initial configuration, the ESX Server can be connected to shared sto
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 w Creating VMFS datastores in the ESX Server – for iSCSI, configuring VMFS datastores over the iSCSI LUNs that were provisioned from a StorCenter ix4-200r. w Adding RDM disks to virtual machines – for iSCSI, alternatively making the LUNs available as RDM disks to the virtual machines. w Multipathing and failover in the ESX Server – best practices for designing highly available network architecture in the ESX Server. NIC AND ISCSI INITIATOR CONFI
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 2. Select the VMkernel connection type as shown in Figure 3. Figure 3 VMkernel selection 3. Select a virtual switch to handle the VMkernel port traffic Figure 4 Select virtual switch White Paper 6
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 4. Name the new VMkernel port group and optionally the VLAN ID for the network. Figure 5 Name the VMkernel port group 5. Verify the settings and finish creating the VMkernel port. Figure 6 VMkernel port group created White Paper 7
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 ADDING A SHARE ON AN IOMEGA STORCENTER NAS DEVICE When using NFS storage, you need to add a share on a StorCenter ix4-200r. Appropriate access permissions must be set for the VMkernel port on the ESX Server to mount an NFS share. These access permissions are: w Host access – provide the VMkernel port mount access to the share. w Read/write access – provide the VMkernel port read/write access to the share. w Root access – provide the VMkernel por
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 2. Go to Shared Storage and click Add to create a new share and optionally enable security on it. Figure 8 Create a new share When creating the share, ensure Folder is the shared storage type and that Enable security is not checked. 3. Click Next to specify user access to the secured share. Figure 9 Specify user access White Paper 9
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 4. Click Next to specify host access to the secured share. Make sure you enter the IP address of the VMKernel port created previously, not the service console port. Figure 10 Specify host access 5. Click Apply and a confirmation page should display. Figure 11 New share created White Paper 10
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 CREATING AN NFS DATASTORE ON ESX SERVER VMware Infrastructure 3 management utilities are used to configure and mount NFS shares from the StorCenter ix4- 200r. The VI client is also used to assign a datastore name to the export. The datastore name is the key reference that is used to manage the datastore within the ESX environment. The NFS datastore is viewed as a pool of storage space to support virtual disks. One or more virtual disks are crea
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 The TCP/IP heap is memory used for TCP/IP buffers for NFS, iSCSI, VMotion, etc. The default NFS.SendBufferSize is 264KB, and the default NFS.ReceiveBufferSize is 128KB. So with two sockets per volume, the total heap needed per volume is 784KB. If you want to create a total of 32 NFS datastores, then you need approximately 25MB in heap size. If you set the heap size to 30MB, you will ensure the best NFS datastore performance when the maximum nu
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 1. Go to Configuration > Storage > Add Storage… Figure 14 Add storage to ESX Server 2. Select the Network File System option. Figure 15 Select NFS type White Paper 13
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 3. Enter the NFS server and share information on StorCenter ix4-200r. Figure 16 Mount the NFS share Either the hostname or the IP address of the StorCenter ix4-200r can be entered here. Ensure that “/nfs” is specified in the folder path so Lifeline can export an NFS share. A meaningful datastore name is recommended to clearly identify it in ESX Server. 4. Click Next and confirm the settings to create the datastore. Figure 17 Create NFS datastor
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 ADDING AN ISCSI LUN ON AN IOMEGA STORCENTER NAS DEVICE When using iSCSI storage, you need to add an iSCSI LUN on a StorCenter ix4-200r. A total of 32 iSCSI targets can be created on an StorCenter ix4-200r, with each target holding one single LUN. An iSCSI LUN can be protected by setting user access controls and iSCSI authentication methods. The StorCenter ix4-200r supports two methods of target discovery: the SendTargets command, and the Intern
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 2. Click Shared Storage and click Add to create a new iSCSI LUN and enable security on it. Figure 19 Add new LUN 3. Proceed to set user access to the LUN. Figure 20 Set user access to the LUN White Paper 16
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 In this example, the user account Administrator is given read/write access to the LUN, but other users have no access to it. This Administrator user account and its password will be the CHAP logon credentials to be used by ESX Server. 4. Click Apply and a confirmation page should display. Figure 21 Confirmation of the LUN creation CREATING A VMFS DATASTORE ON THE ESX SERVER Prior to adding an iSCSI device on the ESX Server, an iSCSI initiator mu
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 1. Enable the iSCSI client in the VMware ESX firewall. Go to Configuration > Security Profile > Properties… Figure 22 Enable iSCSI client 2. Click Configuration > Storage Adapters Figure 23 iSCSI Software Adapter White Paper 18
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 3. Click the vmnba32 iSCSI software adapter and then click Properties. If the iSCSI initiator is not enabled yet, click Configure to enable the initiator and use the default iSCSI name. Figure 24 iSCSI initiator properties 4. Click Dynamic Discovery > Add to enter the iSCSI server information. As mentioned previously, the SendTargets discovery method is used. Figure 25 Specify iSCSI server information White Paper 19
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STORCENTER IX4-200r NAS WITH VMWARE ESX SERVER 3.5 5. Click CHAP Authentication > Configure to enter the CHAP authentication credentials for logon to the iSCSI targets on the StorCenter ix4-200r. The CHAP name should be the user name that is granted read/write access to an iSCSI LUN. In this example, it’s Administrator. The CHAP secret is the password of the user account as set on the ix4-200r. A CHAP secret is required to have 12-16 characters if IPSec is not used. Therefore, if the user passwo
