May 13, 2020
NVMe over FC enables Nonvolatile Memory Express-based commands to transfer data between host and target storage over a Fibre Channel network fabric.
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NVMe over FC enables Nonvolatile Memory Express-based commands to transfer data between host and target storage over a Fibre Channel network fabric.
Zoning for cluster storage in pictures
FC Zoning for #ONTAP cluster storage in pictures. #NetAppUnited
NetApp AFF & FAS storage systems can combine into a cluster up to 12 nodes (6 HA pairs) for SAN protocols. Let’s take a look on zoning and connections on an example with 4 nodes (2 HA pairs) in the image below.
For simplicity we will discuss connection of a single host to the storage cluster. In this example we connect each node to each server. Each storage node connected with double links…
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How does the ONTAP cluster work? (Part 4)
How #ONTAP cluster works? Part 4. Data protocols: SMB, NFS, FCP, NVMe, Ethernet. VLANs, ifgrp, LACP, vPC, Multipathing, and Cluster virtualization schemes. Summary. #NetAppUnited
This article is part of the series How does the ONTAP cluster work? Also previous series of articles How ONTAP Memory work will be a good addition to this one.
Data protocols
ONTAP is considered as a unified storage system, meaning it supports both block (FC, FCoE, NVMeoF and iSCSI) & file (NFS, pNFS, CIFS/SMB) protocols for its clients. SDS versions of ONTAP (ONTAP Select & Cloud Volumes…
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How does the ONTAP cluster work? (part 3)
How #ONTAP cluster work? Part 3. Horizontal Scaling Clusterization & ONTAP Tricks, Indirect data path, SVM, Multi-Tenancy, NDO, NDU, NAS & SAN LIFs, ALUA, FailoverGroup, Broadcast Domain, VIP LIF, MGMT Interfaces, Cluster interfaces. #NetAppUnited
This article is part of the series How does the ONTAP cluster work? Also previous series of articles How ONTAP Memory work will be a good addition to this one.
Horizontal Scaling Clusterization
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…
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How does the ONTAP cluster work? (part 2)
How #ONTAP cluster works? In this part about HA, Share nothing architecture compared to symmetrical, HA interconnect, MCC, MCC-IP & FC, Plex, MC SDS #NetAppUnited
This article is part of the series How does the ONTAP cluster work? Also previous series of articles How ONTAP Memory work will be a good addition to this one.
High Availability
I will call HA the first type of clusterization and its main purpose is data availability. Even though a single HA pair consists of two nodes (or controllers), NetApp has designed it in such a way it appears as a…
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How does the ONTAP cluster work? (part 1)
How does the ONTAP cluster work? (part 1). In this article about HW & SDS appliances, disks, ADP, RAID, Aggregates, Plex, FlashPool, FabricPool, FlashCache, FlexArray, NSE, NVE, FlexVol and FlexGroup
In my previous series of articles I explained how ONTAP system memory works and talked about: NVRAM/NVMEM, NVLOGs, Memory Buffer, HA & HA interconnects, Consistency Points, WAFL iNodes, MetroCluster data availability, Mailbox disks, Takeover, Active/Active and Active/Passive configurations, Write-Through, Write Allocation, Volume Affinities (Wafinity), FlexGroup, RAID & WAFL interaction, Tetris…
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New NetApp platform & Licensing improvements in ONTAP 9.6 (Part 1)
New #NetApp All-Flash platform: A320 with 100 microseconds, e2e #NVMe & directly attached #RoCE Disk Shelves (NS). In #ONTAP 9.6 NVMe is free (Again), SM-S now part of Premium Bundle, Entry MCC-IP #netappunited
A320
All flash A320 2U platform introduced, here are a few important details for this new AFF system:
From the performance perspective of view most notable is ~100 microseconds latencyon SQL SLOB workload. If true, that is a notable improvement because previously we’ve seen only sub 1 millisecond (1,000 microseconds) latency and new latency basically a few times (in the best-case scenario…
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Building Smarter, Simpler Storage Networks - Cisco Storage Networking Briefing Note
Latest @georgeacrump Note: Building Smarter, Simpler Storage Networks - Cisco Storage
Storage architectures are becoming increasingly more complicated. There is more data coming from more applications. There are more users and developers. And there are more operational challenges as IT tries to maximize flash performance across multiple protocols. The storage network is the cardiovascular system providing the organization the data it needs as it continues to modernize itself.
One…
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