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Netapp Serial Number Clustered Mode



This command displays the history of changes to the support and node serial numbers. The node serial number and the support serial number of an ONTAP system are generally the same and do not change over time. However, when capacity pools licensing is used, the support serial number is that of the capacity pool license serial number and the node serial number is generated by the license manager. Also, when a cluster is upgraded or converted from capacity tiers licensing to capacity pools licensing, its support serial numbers as well as its node serial numbers change.




netapp serial number clustered mode



The following example displays the serial number change history of a four node capacity pools cluster. Its two HA pairs were originally assigned to capacity pools 390000101 and 390000102, and then both were reassigned to another capacity pool 390000103:


The cluster UUID is universally unique, as per the standard definition of "UUID", and the cluster serial number SHOULD be unique - but it isn't. We only hand them out to a single customer, but it isn't node-locked and can be used in multiple clusters.


The cluster serial is set based on the cluster base license key entered. It sometimes happens with conversions, rushed installs etc, that the cluster base license key is unavailable, and a well known temporary key is used which corresponds to serial 180000099, so you will sometimes see customers with multiple clusters with the serial 180000099. The cluster serial number can be changed if necessary.


The remaining value (486e542d4f5a2f47694d684b) is the hexadecimal string which, when converted from HEX to ASCII, will be the LUN serial number. There are many Web-based tools to convert HEX to ASCII and vice versa if you are using a version of Data ONTAP that does not have the lun serial -x command available.


Difference in serial number passed to payload than what is in pattern designer. Causing the below issue:1. NetApp storage discovery is updating the part_number type serial number on the node CI where as we expect to have cim_chassis


Actual:Check cmdb_ci_storage_node_element table element contians part_number type serial number.Expected:Check cmdb_ci_storage_node_element table element contians cim_chassis type serial number.


Prerequisites:Need Netapp SNMP Community (password only) credentials for discovery.Steps:1.Login into the application as admin.2.Navigate to Discovery --> Discovery Schedules.3.Click on Quick Discovery button.4. Ran a quick Discovery for the Storage Cluster IP5.Wait till discovery completes.6.Once discovery completes go to cmdb_ci_storage_node_element table and note the serial number.7.Copy the name of any of the recently discovered node element.8.Navigate to cmdb_serial_number table.9.Click on Configuration item column field and Paste name copied in step 6.10.Note the serial numbers and serial number type attached to node the element.


Horizontal scaling ONTAP clusterization came from Spinnaker acquisitions and often referred by NetApp as "Single Namespace", "Horizontal Scaling Cluster" or "ONTAP Storage System Cluster" or just "ONTAP Cluster" and therefore often confused with HA pair or even with MetroCluster functionality. While MetroCluster and HA are Data Protection technologies, single namespace clusterization does not provide data protection. ONTAP Cluster is formed out of one or few HA pairs and adds to ONTAP system Non-Disruptive Operations (NDO) functionality such as non-disruptive online data migration across nodes in the cluster and non-disruptive hardware upgrade. Data migration for NDO operations in ONTAP Cluster require dedicated Ethernet ports for such operations called as cluster interconnect and does not use HA interconnect for this purposes. Cluster interconnect and HA interconnect could not share same ports. Cluster interconnect with a single HA pair could have directly connected cluster interconnect ports while systems with 4 or more nodes require two dedicated Ethernet cluster interconnect switches. ONTAP Cluster could consist only with even number of nodes (they must be configured as HA pairs) except for Single-node cluster. Single-node cluster ONTAP system also called non-HA (stand-alone). ONTAP Cluster managed with a single pane of glass built-in management with Web-based GUI, CLI (SSH and PowerShell) and API. ONTAP Cluster provides Single Name Space for NDO operations through SVM. Single Namespace in ONTAP system is a name for collection of techniques used by Cluster to separate data from front-end network connectivity with data protocols like FC, FCoE, FC-NVMe, iSCSI, NFS and CIFS and therefore provide kind of data virtualization for online data mobility across cluster nodes. On network layer Single Namespace provide a number of techniques for non-disruptive IP address migration, like CIFS Continuous Availability (Transparent Failover), NetApp's Network Failover for NFS and SAN ALUA and path election for online front-end traffic re-balancing with data protocols. NetApp AFF and FAS storage systems can consists of different HA pairs: AFF and FAS, different models and generations and can include up to 24 nodes with NAS protocols or 12 nodes with SAN protocols. SDS systems can't intermix with physical AFF or FAS storage systems.


SnapMirror Sync (SM-S) for short is zero RPO data replication technology previously available in 7-mode systems and was not available in (clustered) ONTAP until version 9.5. SnapMirror Sync replicates data on Volume level and has requirements for RTT less than 10ms which gives distance approximately of 150 km. SnapMirror Sync can work in two modes: Full Synchronous mode (set by default) which guarantees zero application data loss between two sites by disallowing writes if the SnapMirror Sync replication fails for any reason. Relaxed Synchronous mode allows an application to write to continue on primary site if the SnapMirror Sync fails and once the relationship resumed, automatic re-sync will occur. SM-S supports FC, iSCSI, NFSv3, NFSv4, SMB v2 & SMB v3 protocols and have the limit of 100 volumes for AFF, 40 volumes for FAS, 20 for ONTAP Select and work on any controllers which have 16GB memory or more. SM-S is useful for replicating transactional logs from: Oracle DB, MS SQL, MS Exchange etc. Source and destination FlexVolumes can be in a FabricPool aggregate but must use backup policy, FlexGroup volumes and quotas are not currently supported with SM-S. SM-S is not free feature, the license is included in the premium bundle. Unlike SyncMirror, SM-S not uses RAID & Plex technologies, therefore, can be configured between two different NetApp ONTAP storage systems with different disk type & media.


FlexCache technology previously available in 7-mode systems and was not available in (clustered) ONTAP until version 9.5. FlexCache allows serving NAS data across multiple global sites with file locking mechanisms. FlexCache volumes can cache reads, writes, and metadata. Writes on the edge generating push operation of the modified data to all the edge ONTAP systems requested data from the origin, while in 7-mode all the writes go to the origin and it was an edge ONTAP system's job to check the file haven't been updated. Also in FlexCache volumes can be less size that original volume, which is also an improvement compare to 7-mode. Initially, only NFS v3 supported with ONTAP 9.5. FlexCache volumes are sparsely-populated within an ONTAP cluster (intracluster) or across multiple ONTAP clusters (inter-cluster). FlexCache communicates over Intercluster Interface LIFs with other nodes. Licenses for FlexCache based on total cluster cache capacity and not included in the premium bundle. FAS, AFF & ONTAP Select can be combined to use FlexCache technology. Allowed to create 10 FlexCache volumes per origin FlexVol volume, and up to 10 FlexCache volumes per ONTAP node. The original volume must be stored in a FlexVol while all the FlexCache Volumes will have FlexGroup volume format.


ONTAP OS has a number of features to increase security on the storage system like Onboard Key Manager, the passphrase for controller boot with NSE & NVE encryption and USB key manager (available starting with 9.4). Auditing for NAS events is another security measure in ONTAP that enables the customer to track and log certain CIFS and NFS events on the storage system. This helps to track potential security problems and provides evidence of any security breaches. ONTAP accessed over SSH has an ability to Authenticate with a Common Access Card. ONTAP supports RBAC: Role-based access control allows administrative accounts to be restricted and/or limited in what actions they can take on the system. RBAC prevents a single account from being allowed to perform all potential actions available on the system. Beginning with ONTAP 9, Kerberos 5 authentication with privacy service (krb5p) is supported for NAS. The krbp5 authentication mode protects against data tampering and snooping by using checksums to encrypt all traffic between client and server. The ONTAP solution supports 128-bit and 256-bit AES encryption for Kerberos.


Note: The WWNN of a storage system is generated by a serial number in its NVRAM, but it is stored ondisk. If you ever replace a storage system chassis and reuse it in the same Fibre Channel SAN, it is possible, although extremely rare, that the WWNN of the replaced storage system is duplicated. In this unlikely event, you can change the WWNN of the storage system.


In cDOT, the question mark (?) automatically triggers a help screen whenever you type it. This is useful in many cases, but not when you want to set a LUN serial number with a question mark in it. However, there is a way to disable the help function: 350c69d7ab


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