SAP HANA Tailored Datacenter Integration Option. Cisco UCS Configuration Principles for Shared Storage.

March 2. 01. 4Contents. Table of Figures..................................................................................... Introduction.........................................................................................

Global Hardware Requirements for the SAP HANA Database........................................... CPU............................................................................................. Memory.......................................................................................... CPU and Memory Combinations.................................................................... Network......................................................................................... Storage.........................................................................................

File System Sizes................................................................................ Operating System................................................................................ Boot Options..................................................................................... High Availability.................................................................................. Cisco Solution for SAP HANA Scale- Out Design.......................................................

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Cisco UCS Configuration.......................................................................... Server Pool Policy................................................................................ BIOS Policy......................................................................................

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Serial over LAN Policy............................................................................ Maintenance Policies............................................................................. Intelligent Platform Management Interface Access Profile............................................. Service Profile Template Configuration............................................................. Service Profile Deployment........................................................................ Cisco Solution for SAP HANA Tailored Datacenter Integration..........................................

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Port. Channel Connection.......................................................................... Pinning Option with Eight Uplinks.................................................................. Storage Connectivity Options...................................................................... Boot Options....................................................................................... PXE Boot........................................................................................ SAN Boot........................................................................................ Local Disk Boot.................................................................................

Operating System Installation...................................................................... SUSE Linux Enterprise Server.................................................................... Operating System Configuration.................................................................. Linux Kernel Crash Dump........................................................................ Storage Access for SAP HANA..................................................................... Block Storage for SAP HANA Data and Log Files...................................................

File Storage for SAP HANA Data and Log Files..................................................... Block Storage for SAP HANA Shared File System................................................... File Storage for /hana/shared..................................................................... Cisco UCS Solution for SAP HANA TDI: Shared Network............................................. Multiple SAP HANA SIDs in One Appliance......................................................... SAP HANA and SAP Application Server in One Appliance........................................... SAP HANA in an Existing Cisco UCS Deployment..................................................

Conclusion....................................................................................... For More Information.............................................................................. Appendix: Direct- Attached NFS Failure Scenarios................................................... Network- Attached Storage and Cisco UCS Appliance Ports.......................................... Summary of Failure Recovery Principles........................................................... Figure 1. High- Level SAP HANA Network Overview................................................

Figure 2. File System Layout..................................................................... Figure 3. Cisco Solution for SAP HANA Scale- Out Design........................................... Figure 4. Chassis Discovery Policy............................................................... Figure 5. IOM Fabric Ports with Pinning Mode......................................................

Figure 6. IOM Fabric Ports with Port Channel Mode................................................ Figure 7. Power Policy...........................................................................

Figure 8. Power Control Policy for SAP HANA Nodes............................................... Figure 9. Server Pool Policy Qualification HANA- 5. GB- 4. 87. 0....................................... Figure 1. 0. CPU Qualification Properties............................................................

Figure 1. 1. Memory Qualification Properties......................................................... Figure 1. 2. Server Pool............................................................................ Figure 1. 3. Server Pool Policy HANA- 5.

GB- 4. 87. 0................................................... Figure 1. 4. List of Servers in Server Pool HANA- 5. GB- 4. 87. 0......................................... Figure 1. 5. BIOS Policy Main Settings............................................................... Figure 1. 6. BIOS Policy: Advanced > Processor..................................................... Figure 1. 7. BIOS Policy: Advanced > Intel Directed IO................................................

Figure 1. 8. BIOS Policy: Advanced > RAS Memory................................................... Figure 1. 9. BIOS Policy: Advanced > Serial Port..................................................... Figure 2. 0. BIOS Policy: Advanced > USB........................................................... Figure 2. 1. BIOS Policy: Advanced > PCI Configuration............................................... Figure 2. 2. BIOS Policy: Boot Options...............................................................

Figure 2. 3. BIOS Policy: Server Management........................................................ Figure 2. 4. Serial over LAN Policy.................................................................. Figure 2. 5. Maintenance Policy..................................................................... Figure 2. 6. IPMI Access Profile..................................................................... Figure 2. 7. Adapter Policy Linux- B4. Figure 2. 8. Network Paths with Cisco UCS..........................................................

Figure 2. 9. VLAN Definition in Cisco UCS (Old)...................................................... Figure 3. 0. VLAN Definition in Cisco UCS (New)..................................................... Figure 3. 1. VLAN Groups in Cisco UCS............................................................. Figure 3. 2. VLAN Groups: Uplink Port. Channels for VLAN Group Admin- Zone.......................... Figure 3. 3. v. NIC Templates (Old)...................................................................

Security Features. Setting Up SSH Key- based Host Authentication.

Secure Shell or SSH allows data to be exchanged over the network using a secure channel between two devices. SSH is used primarily on Linux and Unix based systems.

SSH was designed as a replacement for FTP, telnet and other unsecure remote shells, which send information, notably passwords in plaintext, leaving them open for interception. The encryption used by SSH provides confidentiality and integrity of data over an insecure network. SSH also protects the system against DNS spoofing attacks. This makes SSH a better choice in production environments over telnet/FTP and other username/password based authentications. You can configure Enterprise Manager to use SSH while performing management operations, thus allowing Enterprise Manager administrators to leverage the security features provided by SSH along with the management capabilities of Enterprise Manager. When authenticating in this mode, the Agent acts as a Java SSH client and connect to the host using the username/password provided in the credential.

Enterprise Manager allows you to store a public- private key pair for administrators and allows them to view and install the public key on the hosts. How To Install Sti Rear Window Spoiler For Bmw. Administrators can then submit jobs/patching operations in which they specify the credential that refers to the private key to perform the operation. The OMS passes the private key to the Agent along with the commands and the command parameters. Agent invokes the Java SSH client and attempts to connect to the host using the private key. Since the host already has the public key installed, it identifies the private key and successfully authenticates the Agent's Java SSH client.

The Agent can now run the commands through the SSH client on the host to perform the requested operations. The username used in the communication must be a valid OS user on both the host and the OMS. This is the username used in the named credential and not the username of the administrator invoking the operation.

Note. For Enterprise Manager Grid Control release 1. SSH credentials with privilege delegation you must add the following parameter and value to the emd. EMPDP. This utility SSH- keygen tool provides different options to create with different strengths RSA keys for SSH protocol version 1 and RSA or DSA keys for use by SSH protocol version 2. Note. The procedure shown in this example assumes that you have a firm understanding of SSH setup procedures and user and host equivalence using public private key pair using SSH. Example 2- 1. 1 Setting Up SSH key- based Authentication. The command options instruct the utility to generate SSH keys (RSA key pair). The system will not prompt you for a password.

The Create Credential page displays. Enter a Credential Name. For example, SSHCRED1. Note: The SSHCRED1 credential set will be used in Section 2. Doing so makes navigating to the files from within the console easier when you click Browse in the next step.

From the Credential Properties region, enter a User. Name. This username is a valid OS user that resides on both the Host and the OMS.

From the Credential Properties region, click Browse for Public Key and Private Key to upload the generated public key/private key files. Click Test and Save to verify the credentials and save them. The new named credential will appear as shown in the following figure.

Figure 2- 6 Named Credential Using SSH Keys. Setting Up Host Preferred Credentials Using SSH Key Credentials.

Enterprise Manager provides out- of- box support (1. SSH key credentials to be available and used as preferred credentials. SSH key credential sets are used to authenticate against targets. The introduction of SSH key credential sets is useful when a username and password credential is unknown or when considering alternative security options. SSH keys use encryption methods which provide more confidentiality and integrity of data over an otherwise potentially insecure network.

Providing this support out of the box, eliminates the Administrator from creating a custom SSH key credential and facilitates ease of use. Note. SSH Credentials are not supported for Windows operating systems.

To set SSH credentials as preferred credential: From the Setup menu, select Security and then select Preferred Credentials. Select the 'Agent' or 'Host' target type and then click Manage Preferred Credential. The Agent Preferred Credentials Setting page displays. For more information see the . To set the preferred credential, click the My Preferences tab, as shown in the image below. Under the Default Preferred Credential region, which sets the preferred credential for all targets of the selected target type, an Agent Target Type was chosen. See above graphic.

Select Host Credentials and then click Set. A dialog displays listing the current choice of available Name Credentials most appropriate for this Agent Target Type. For this Administrator. Select the SSH Credential, and click Save. The Default Preferred Credential will then display the credential which will be used for all targets of type Host for this Administrator.

The below image shows that the Credential Set = Host Credential; the Target Username = test, which indicates the OS user who is used in the Named Credential. This setting means that all Agent connections, by this administrator, will use this credential set to authenticate with all Agents. Setting Up Host Preferred Credentials Using SSH Key Credentials (pre- 1. Note. The method outlined below is a work- around to be used for pre- 1. Enterprise Manager. You can set up host preferred credentials to use SSH keys by creating a new credential set that uses the Host.

SSHCreds credential type. Enterprise Manager administrators then set up preferred credentials that use this credential set. Each Enterprise Manager target type can have one or more preferred credential sets of pre- defined credential types. The following steps use EM CLI to create a host preferred credential set which supports SSH key credentials.

This example assumes the existence of the named credential. SSHCRED1 of type SSH Key Credentials created in the previous section. Log into EM CLI as an Enterprise Manager Super Administrator. Create a new credential set of type Host.

SSHCreds. You can use EM CLI or the Enterprise Manger console. The following EM CLI example assumes a named credential called SSHCRED1 of type SSH Key Credentials has already been created. The following graphic shows the Host. SSHCred. Set credential set listed as a default preferred credential for host targets. You can now set the preferred credentials of regular regular Enterprise Manager administrators to use the SSHCRED1 named credential by editing/creating an administrator and granting Named Credential resource privileges. The following graphic shows the manage privilege grants UI for named credentials. Authenticating host credentials.

The Enterprise Manager Agent can use two methods to authenticate OS credentials: Traditional Authentication. PAM Authentication. With traditional authentication, credentials submitted by users are compared with entries in the system's password database - - that is, against entries found in /etc/passwd and related files, and in remote extensions to those files as defined by OS- specific configuration such as /etc/nsswitch. With PAM authentication, the Agent uses a feature of the operating system called PAM, or Pluggable Authentication Modules, to validate the credentials submitted by users. PAM is a framework that allows administrators to specify which of a wide range of authentication mechanisms (such as LDAP, Kerberos, RADIUS) should be used by PAM- aware applications. An application identifies itself to PAM using a service- name.

If the administrator has configured a PAM definition for that service- name, then the rules in that definition are applied for that application's authentication requests. If not, then the rules for a special default service- name, . If the administrator has explicitly defined an .