SPECsfs2008_nfs.v3 Result

Throughput (ops/sec) Response (msec) 60042 0.3 120192 0.4 180570 0.4 240788 0.5 301347 0.6 362369 0.7 422882 0.9 483790 1.3 549007 1.9 580796 3.2

Tested By	EMC Corporation
Product Name	EMC VNX8000 Unified Storage System, 8 X-Blades (including 1 stdby)
Hardware Available	August 2013
Software Available	August 2013
Date Tested	August 2013
SFS License Number	47
Licensee Locations	Hopkinton, MA

The EMC VNX8000 unified storage system with MCx multi-core optimization delivers the highest levels of performance, capacity efficiency, data protection, and ease of use for file- and block-based applications. The configuration tested here consists of an EMC VNX8000 Unified Storage Array with seven active X-Blades and one standby X-Blade.

Item No	Qty	Type	Vendor	Model/Name	Description
1	2	Rack	EMC	VNXBRACK-40U	VNXB 40U RACK WITH FRONT PANEL
2	1	Enclosure	EMC	VNXB80SPE	VNX8000 SPE-EMC RACK
3	1	Disk	EMC	V-V4-230015	VNX 300GB 15K VAULT 25x2.5 DPE/DAE
4	1	Disk	EMC	V4-2S15-300	VNX 300GB 15K SAS 25x2.5 DPE/DAE
5	544	Disk	EMC	V4-2S6F-200	VNX 200GB SSD 25x2.5 DPE/DAE
6	4	Enclosure	EMC	VNXB6GSDAE25P	VNXB 25x2.5 6G SAS PRI DAE-EMC RACK
7	18	Enclosure	EMC	VNXB6GSDAE25	VNXB 25x2.5 6G SAS EXP DAE-EMC RACK
8	2	SLIC	EMC	VSPBEXPSASBEA	VNXB SAS BE EXP 4 BUSES
9	6	SLIC	EMC	VSPBM8GFFEA	VNXB 4 PORT 8G FC IO MODULE PAIR
10	1	Enclosure	EMC	VNXB80DME	VNX8000 DME: 2 DM+FC SLIC-EMC RACK
11	3	Enclosure	EMC	VNXB80DMEX	EMPTY VNX80 DM ENCLOSURE-EMC RACK
12	6	X-Blade	EMC	VNXB80DM	VNX8000 ADD ON DM+FC SLIC-EMC RACK
13	1	Control Station	EMC	VNXBCS	VNXB CONTROL STATION-EMC RACK
14	8	SLIC	EMC	VDMBMXG2OPA	VNXB 10GBE 2 OP MODULE (2 SFP+)
15	1	Software	EMC	VNXOE-8000	VNX8000 Operating Environment
16	1	Software	EMC	UNISU-VNX8000	VNX8000 Unisphere Unified Suite
17	1	Software	EMC	EXPSAS-V80	Unisphere VNX8000 SAS EXP Software
18	1	Switch	Cisco	Nexus 5596	Cisco Nexus 10GbE IP Switch

OS Name and Version	VNX File OE 8.1.0.15
Other Software	EMC VNX Control Station Linux 2.6.18-348.1.1.8000.EMC
Filesystem Software	VNX UxFS File System

Name	Value	Description
ufs updateAccTime	0	Disable access time updates
file dnlcNents	4608000	Directory name lookup cache size

Server Tuning Notes

None

Description	Number of Disks	Usable Size
2.5" 200GB 6Gbps SAS flash	544	75.2 TB
2.5" 300GB SAS 15K RPM drive	5	105.0 GB
Total	549	75.3 TB

Number of Filesystems	21
Total Exported Capacity	75842 GiB
Filesystem Type	UxFS
Filesystem Creation Options	"server_mount server_x -o noprefetch" - disable prefetching for the mounted file system
Filesystem Config	File systems fs0 through fs20 are each striped across 20 LUNs with 256 KB element size. Three file systems were mounted and exported from each X-Blade.
Fileset Size	70318.9 GB

525 of the flash drives are for data, 19 are for hot spares. The flash data drives were configured as 5 drive RAID groups, for a total of 105 RAID groups. Each RAID group hosted 4 4+1 RAID5 LUNs for a total of 420 LUNs, 210 LUNs owned by SPA and 210 owned by SPB.

The file systems were created in a manner that used almost the entire usable capacity (after RAID implementation) of the flash data drives. After completion of the benchmark, each of the file systems was 94% full. The benchmark required this number of flash drives be installed in order to attain successful completion due to capacity requirements for the benchmark.

The 5 SAS drives were used for the VNX vault and control volumes for all X-Blades - 4 SAS drives for the vault and 1 SAS drive as a hot spare. The 105 GiB usable size reported for the SAS drives is the amount of space on the drives used by the X-Blades' control LUNs. The remainder of the space on the drives is used by the vault and is hidden from the X-Blades and the end users, thus no user space was available on the SAS drives.

Each client mounted 3 file systems per X-Blade through each network interface of the VNX. Each client mounted a total of 21 file systems.

Item No	Network Type	Number of Ports Used	Notes
1	Jumbo 10GbE	16	There are 2 10GbE network interfaces in use per active X-Blade, both ports on the single 10GbE SLIC installed in the X-Blade.

Network Configuration Notes

All 10GbE network interfaces were connected to a Cisco Nexus 5596 switch.

An MTU size of 9000 was set for all connections to the switch. Each X-Blade was connected to the network via 2 ports. The X-Blade network ports were used independently - they were not bonded. The LG1 class workload machines were connected with one port each.

Item No	Qty	Type	Description	Processing Function
1	7	CPU	Single socket Intel six core Westmere (Xeon X5660) 2.8 GHz with QPI speed of 6.4 GT/s for each X-Blade server. 1 chip active for the workload. (1 Processor in the standby X-Blade is not in the quantity.)	VNX8000 X-Blades (NFS protocol, UxFS file system)
2	4	CPU	Dual socket Intel eight core Sandy Bridge (Xeon E5-2680) 2.7 GHz with QPI speed of 8.0 GT/s for each VNX8000 SP.	VNX8000 Storage Processors (SCSI, FC, SAS, RAID)

Processing Element Notes

Each X-Blade has one physical processor. There are 7 active X-Blades for a total of 7 physical processors. Each SP has two physical processors with 8 cores each. The control station listed in the BOM contains a processor that is not counted for in the list of processors here. The control station is for management only. There is no function of the control station that is in the workload's data path.

Description	Size in GB	Number of Instances	Total GB	Nonvolatile
Each X-Blade main memory. (24 GB in the standby X-Blade not in the quantity)	24	7	168	V
EMC VNX8000 storage array battery backed memory. 128 GB per EMC VNX8000 SP. The EMC VNX8000 SP memory is used for the VNX OE as well as caching operations.	128	2	256	NV
Grand Total Memory Gigabytes			424

Memory Notes

There is sufficient battery power to safely destage all cached data to the EMC VNX8000 vault drives in the event of a power failure. The SPs are shut down in an orderly fashion when destaging is complete.

21 NFS file systems were used. Each file system was striped over 20 LUNs. Each VNX8000 X-Blade had 4 Fibre Channel connections directly to the VNX8000 backend array. In this configuration, NFS stable write and commit operations are not acknowledged until after the EMC VNX8000 storage array has acknowledged that the related data has been stored in stable storage (i.e. battery backed memory or disk).

The system under test consisted of 7 active VNX8000 X-Blades, each directly attached by 4 FC links to the VNX8000 storage array. Of these 4 FC links per X-Blade, 2 were connected to SP A, and 2 were connected to SP B. Each of the two FC links from each X-Blade to each SP were connected to different FC SLICs on the SP. Each SP had 4 FC SLICs for X-Blade connectivity, the other FC SLICs are reserved for block-only/non-NAS access. The X-Blades were running VNX File OE 8.1.0.15. 2 10GbE Ethernet ports per X-Blade were connected to the network.

Failover is supported by an additional VNX X-Blade that operates in standby mode. In the event of any of the 7 active X-Blades failing, the standby unit takes over the function of the failed unit. The standby X-Blade does not contribute to the performance of the system and it is not included in the active components listed above.

Item No	Qty	Vendor	Model/Name	Description
1	18	Cisco	Cisco C240 M3	Cisco server with 128 GB RAM and the Linux operating system

LG Type Name	LG1
BOM Item #	1
Processor Name	Intel(R) Xeon(TM) E5-2620
Processor Speed	2.0 GHz
Number of Processors (chips)	2
Number of Cores/Chip	6
Memory Size	128 GB
Operating System	CentOS 6.3 Linux 2.6.32-279.el6.x86_64
Network Type	1 x Intel X520 10GbE

Benchmark Parameters

Network Attached Storage Type	NFS V3
Number of Load Generators	18
Number of Processes per LG	105
Biod Max Read Setting	8
Biod Max Write Setting	8
Block Size	AUTO

Testbed Configuration

LG No	LG Type	Network	Target Filesystems	Notes
1..18	LG1	1	/fs0, ..., /fs20	N/A

Load Generator Configuration Notes

All file systems were mounted on all clients, which were connected to the same physical and logical network.

Each client has all file systems mounted from each active X-Blade.

Failover is supported by an additional VNX X-Blade that operates in standby mode. In the event of the X-Blade failure, the standby unit takes over the function of any failed unit. The standby X-Blade does not contribute to the performance of the system and it is not included in the components listed above.

The EMC VNX8000 was configured with 128 GB of memory per SP. The memory is backed up with sufficient battery power to safely destage all cached data onto the vault drives before shutting down the SP's in an orderly manner in the event of a power failure.

• Config Diagram