SPECsfs2008_nfs.v3 Result

Throughput (ops/sec) Response (msec) 122542 0.3 245273 0.3 368143 0.3 491136 0.4 613918 0.4 737914 0.5 860669 0.7 984360 0.8 1107794 1.0 1222089 6.0

Tested By	Hitachi Data Systems
Product Name	Hitachi Virtual Storage Platform G1000, File Model 4100, 8 Node Cluster
Hardware Available	July 2013
Software Available	February 2014
Date Tested	March 2014
SFS License Number	276
Licensee Locations	Santa Clara, CA, USA

The Hitachi Virtual Storage Platform (VSP), Hitachi Unified Storage (HUS) and Hitachi NAS (HNAS) Platform family of products provide multiprotocol support to store and share block, file and object data types. The HNAS 4000 series delivers best-in-class performance, scalability, clustering with automated failover, 99.999% availability, non-disruptive upgrades, smart primary deduplication, intelligent file tiering, automated migration, 256TB file system pools, a single namespace up to the maximum usable capacity, and are integrated with the Hitachi Command suite of management and data protection software. The Hitachi NAS file module uses a hardware-accelerated "Hybrid Core" architecture that accelerates network and file protocol processing to achieve the industry's best performance in terms of both throughput and Operations per second. The file module also uses an object-based file system (Silicon File System) and virtualization to deliver the highest scalability in the market, enabling organizations to consolidate file servers and other NAS devices into fewer nodes and storage arrays for simplified management, improved space efficiency and lower energy consumption. The 4100 cluster can scale up to 8 nodes and 16PB of usable data storage and support 10GbE LAN access and 8Gbps FC storage connectivity.

The Hitachi Virtual Storage Platform (VSP) G1000 is the industry's first enterprise-class unified storage platform which delivers flash-optimized Storage Virtualized Operating System (SVOS) software and patented Hitachi Accelerated Flash arrays to provide a high return on investment, security and quality of service to applications. Utilizing external storage virtualization and automated tiering, VSP G1000 centralizes storage management of multiple storage tiers for the highest economic value. The VSP G1000 all flash storage system, when combined with the Hitachi NAS file module, delivers industry-leading performance and scalability, while dramatically lowering response times.

Item No	Qty	Type	Vendor	Model/Name	Description
1	8	Server	HDS	SX345384.P	Hitachi NAS 4100 Base System
2	1	Server	HDS	SX345278.P	System Management Unit (SMU)
3	1	Software	HDS	SX365131.P	Hitachi NAS SW - Software Bundle
4	32	FC Interface	HDS	FTLF8528P3BNV.P	SFP+ 8Gbps FC
5	48	Network Interface	HDS	FTLX8571D3BCV.P	SFP+ 10GE
6	1	Storage	HDS	VSP-Solution	Virtual Storage Platform G1000
7	1	Storage	HDS	DKC810I-CBXA.P	Primary Controller Chassis
8	1	Chassis	HDS	DKC-F810I-CBXB.P	Secondary Controller Chassis
9	64	Cache	HDS	DKC-F810I-CM16G.P	16GB Cache Memory Module
10	8	Cache	HDS	DKC-F810I-BMM128.P	128GB Cache Flash Memory Module (used only during power outage)
11	128	Drives	HDS	DKC-F810I-1R6FM.P	1.6TB Flash Module Drive
12	4	Drive Chassis	HDS	DKC-F810I-FBX.P	Flash Module Drive Chassis
13	8	Processor Blade	HDS	DKC-F810I-MP.P	Virtual Storage Director (4 pairs)
14	8	FC Interface	HDS	DKC-F810I-16FC8.P	16-Port 8Gbps FC Host Adapter (4 pairs)
15	8	Disk Adapter	HDS	DKC-F810I-SCA.P	Disk Adapter (4 pairs)
16	2	Rack	HDS	DKC-F810I-RK42.P	Rack Frame 42U
17	2	Switch	Brocade	Brocade 6520	Brocade 6520 FC switch
18	2	Switch	Brocade	VDX6730	Brocade VDX6730 10GbE switch for Cluster Interconnect

OS Name and Version	11.3.3434.03
Other Software	None
Filesystem Software	SiliconFS 11.3.3434.03

Name	Value	Description
security-mode	UNIX	Security mode is native UNIX
cifs_auth	off	Disable CIFS security authorization
cache-bias	small-files	Set metadata cache bias to small files
fs-accessed-time	off	Accessed time management was turned off
shortname	off	Disable short name generation for CIFS clients
read-ahead	0	Disable file read-ahead

Server Tuning Notes

None

Description	Number of Disks	Usable Size
1.6TB Hitachi Accelerated Flash module drive	128	179.1 TB
250GB SATA Disks. These sixteen drives (two mirrored drives per node) are used for storing the core operating system of the file module and management logs. No cache or data storage.	16	2.0 TB
Total	144	181.1 TB

Number of Filesystems	16
Total Exported Capacity	179.2TB
Filesystem Type	WFS-2
Filesystem Creation Options	4KB filesystem block size
Filesystem Config	Each filesystem was striped across 8 LUNs from a single 7D+1P, RAID-5 Group consisting of 8 Flash module drives.
Fileset Size	143572.8 GB

The storage configuration consisted of a Hitachi Virtual Storage Platform (VSP), Model G1000 All Flash storage system (VSP G1000). The storage system was configured with two controller chassis, four Virtual Storage Director pairs and 1TB cache memory. There were a total 128 1.6TB Hitachi Accelerated Flash module drives in use to meet the capacity and performance requirements of the benchmark. There were 128 LDEVs created using RAID-5, 7D+1P. There were thirty two 8Gbps FC ports in use across four FED pairs from the VSP G1000. The FC ports were connected to the 4100 nodes via a redundant pair of Brocade 6520 switches. The 4100 nodes were connected to each Brocade 6520 switch via two 8Gbps FC connections, such that a completely redundant path exists from each node to the storage. Each Hitachi NAS file module nodes have two internal mirrored hard disk drives that are used to store the core operating software and system logs. These drives are not used for cache space or for storing data.

Item No	Network Type	Number of Ports Used	Notes
1	10 Gigabit Ethernet	8	Integrated 10GbE Ethernet controller

Network Configuration Notes

One 10GbE network interface from each 4100 node was connected to a Hitachi Apresia 15000-64XL-PSR switch, which provided network connectivity to the clients. The interfaces were configured to use Jumbo frames.

Each LG has a dual port Intel X520-SR2 PCIe 10GbE Server Adapter. But each LG connects only via a single 10GbE connection to the ports on the Hitachi Apresia 15000-64XL-PSR switch.

Item No	Qty	Type	Description	Processing Function
1	8	FPGA	Altera Stratix IV EP4SE530	Filesystem
2	24	FPGA	Altera Stratix IV EP4SGX360	Network Interface, Storage Interface, NFS
3	8	CPU	Intel Xeon Quad-Core 3.4GHz Processor	Management (Hitachi NAS file module)
4	8	CPU	Intel Xeon Quad-Core 2.33GHz Processor	VSP G1000 I/O Management
5	16	ASIC	Hitachi Custom ASIC	VSP G1000 data accelerators

Processing Element Notes

Each 4100 node has 4 FPGAs that are used for processing functions. The VSP G1000 storage system is equipped with four pairs of processor blades and each processor blade has an Intel Xeon Quad-Core CPU. Each Host Adapter and Disk Adapter in the VSP G1000 system is equipped with a custom Hitachi ASIC that are used for data acceleration.

Description	Size in GB	Number of Instances	Total GB	Nonvolatile
Server Main Memory	32	8	256	V
Server Filesystem and Storage Cache	68	8	544	V
Server Battery backed NVRAM	8	8	64	NV
Cache Memory Module (VSP G1000)	16	64	1024	NV
Grand Total Memory Gigabytes			1888

Memory Notes

Each 4100 node has 32GB of main memory that is used for the operating system and in support of the FPGA functions. 68GB of memory is dedicated to filesystem metadata, sector cache and for other purposes. A separate, integrated battery-backed NVRAM module (8GB) on the filesystem board is used to provide stable storage for writes that have not yet been written to disk. The VSP G1000 storage system was configured with 1TB Memory.

The Hitachi NAS File module writes to the battery based (72 hours) NVRAM internal to the server first. The data from NVRAM is then written to the backend storage system at the earliest opportunity, but always within a few seconds of arrival in the NVRAM. In an eight node active-active cluster configuration, the contents of the NVRAM are synchronously mirrored (in a round robin fashion) to ensure that in the event of one or two node failover, any pending transactions can be completed by the remaining nodes. The data from the node is then written onto the battery backed backend storage system cache (a second layer of NVRAM in the entire solution) and are backed up onto the Cache Flash Memory modules (each 128GB) in the event of a power outage. The Cache Flash Memory modules in the backend storage system are part of the total solution, but are used only during a power outage and never used as cache space.

The system under test consisted of eight Hitachi NAS File 4100 nodes, connected to a VSP G1000 All Flash storage system via two Brocade 6520 FC switches. The nodes were configured in an active-active cluster mode and are connected by a redundant pair of 10GbE connections to the cluster interconnect ports via two Brocade VDX6730-24 10GbE switches (cluster interconnect switches).

The VSP G1000 All Flash storage system consisted of four pairs of Virtual Storage Directors and 128 1.6TB Hitachi Accelerated Flash module drives. All the connectivity from server to the storage was via two 8Gbps switched FC fabric. For these tests, there were 2 zones created on each FC switch. Each 4100 server was connected to each zone via 2 integrated 8Gbps FC ports (corresponding to 2 FC ports). VSP G1000 storage system was connected to 2 zones (corresponding to 32 FC ports) providing I/O path from the server to storage. The System Management Unit (SMU) is part of the total system solution, but is used for management purposes only and was not active during the test.

None

Item No	Qty	Vendor	Model/Name	Description
1	16	Hitachi	Compute Blade 2000 E55R3	RHEL 6.4 clients, Sixteen Physical Cores, 64GB Memory
2	1	Hitachi	Apresia	Hitachi Apresia 15000-64XL-PSR 10GbE Switch

LG Type Name	LG1
BOM Item #	1
Processor Name	Intel Xeon E5-2690
Processor Speed	2.9 GHz
Number of Processors (chips)	2
Number of Cores/Chip	8
Memory Size	64 GB
Operating System	RedHat Enterprise Linux 6.4, 2.6.32-358.el6 kernel.
Network Type	1 x Intel X520-SR2 PCIe 10GbE Server Adapter

Benchmark Parameters

Network Attached Storage Type	NFS V3
Number of Load Generators	16
Number of Processes per LG	448
Biod Max Read Setting	2
Biod Max Write Setting	2
Block Size	64

Testbed Configuration

LG No	LG Type	Network	Target Filesystems	Notes
10..25	LG1	1	/w/d0, /w/d1, /w/d2, /w/d3, /w/d4, /w/d5, /w/d6, /w/d7, /w/d8, /w/d9, /w/d10, /w/d11, /w/d12, /w/d13, /w/d14, /w/d15	None

Load Generator Configuration Notes

All the target filesystems from each node were accessed by all the clients.

All the filesystems from each node were mounted on all the clients. Each load generating client hosted 448 processes, accessing all the 16 target file systems (/w/d0, /w/d1, /w/d2, /w/d3, /w/d4, /w/d5, /w/d6, /w/d7, /w/d8, /w/d9, /w/d10, /w/d11, /w/d12, /w/d13, /w/d14, /w/d15).

Other test notes: None

Hitachi Unified Storage, Hitachi Unified Storage VM, Hitachi NAS Platform and Virtual Storage Platform are registered trademarks of Hitachi Data Systems, Inc. in the United States, other countries, or both. All other trademarks belong to their respective owners and should be treated as such.

• Configuration Diagram