SPECsfs2008_nfs.v3 Result

Throughput (ops/sec) Response (msec) 52028 0.3 104151 0.7 156376 1.0 208485 1.2 261061 1.6 312896 2.7 365379 3.2 419000 3.2 471327 3.6 494244 4.1

Tested By	Dell Inc.
Product Name	Dell Compellent FS8600 v2 - Four Appliances
Hardware Available	July 2013
Software Available	July 2013
Date Tested	May 2013
SFS License Number	55
Licensee Locations	Round Rock, TX

Fluid File System (FluidFS) provides scale-out network attached storage (NAS) leveraging Dell's primary storage arrays for backend block storage. FluidFS is a fully virtualized, distributed clustered file system that avoids the architectural limitations of traditional scale-up file systems. It scales performance, capacity and block vs. file needs independently while maintaining industry-leading TCO. High performance is driven by advanced caching algorithms, intelligent front and back-end load-balancing, an advanced metadata architecture and small and large-file optimizations. The FS8600 is a dual controller appliance used in conjuction with Dell Compellent Storage Center to provide CIFS/NFS access to a single virtualized pool of storage.

Item No	Qty	Type	Vendor	Model/Name	Description
1	4	NAS Appliance	Dell	NAS-FS8600-10GBE	FS8600 10GbE dual controller NAS appliance
2	4	Storage Controller	Dell	CT-SC8000-BASE	SC8000 storage controller
3	8	Disk Enclosure	Dell	EN-SC220-1235	SC220 2U 24 2.5" drive 6Gb SAS enclosure
4	8	Fibre Channel Card	Dell	IO-F8X2S-E-LP-D	2-port 8Gb FC low profile PCI-E card
5	8	SAS Card	Dell	IO-SAS6X4S-E2-D	4-port 6Gb PCI-E SAS card
6	24	Disk	Dell	400GB SLC SSD	400GB SLC SSD 2.5" Drive
7	120	Disk	Dell	1.6TB eMLC SSD	1.6TB eMLC SSD 2.5" Drive
8	2	Software	Dell	SW-CORE-BASE	Storage Center base software license
9	14	Software	Dell	SW-CORE-EXP	Storage Center software expansion license
10	2	Software	Dell	SW-DAPR-BASE	Data Progression base license
11	14	Software	Dell	SW-DAPR-EXP	Data Progression expansion license
12	2	Fibre Channel Switch	Brocade	300	24 port 8Gb FC switch
13	2	Ethernet Switch	Dell	PC8024F	24 port 10Gb Ethernet switch

OS Name and Version	FluidFS v2.0.7
Other Software	SCOS 6.4-pre
Filesystem Software	FluidFS

Name	Value	Description
Storage Center volumes write cache	disabled	Disable write cache for SAN volumes presented from Storage Center
Storage Center datapage size	512KB	Page size for Storage Center volumes

Server Tuning Notes

N/A

Description	Number of Disks	Usable Size
Storage Center #1	72	42.2 TB
Storage Center #2	72	42.2 TB
Total	144	84.5 TB

Number of Filesystems	1
Total Exported Capacity	84 TB
Filesystem Type	FluidFS v2.0.7
Filesystem Creation Options	Default NAS Volume with Unix security style
Filesystem Config	Each SC8000 Storage Center system was configured with 72 drives, 12 SLC and 60 eMLC drives, configured in one disk pool. Each SC8000 presented four 10.75TB LUNs to all four FS8600 appliances.
Fileset Size	60944.7 GB

Storage Center SAN volumes were configured with defaults except changing the page size to be 512KB and were thinly provisioned. Data was configured to be written to the default write level of RAID10.

Item No	Network Type	Number of Ports Used	Notes
1	10GbE with jumbo frames	16	10GbE SFP+ copper
2	10GbE interconnect network	16	10GbE interconnect network

Network Configuration Notes

Of the 10GbE Ethernet ports, 16 were connected to the Dell Force10 F4810 for client communications, four from each appliance. The other 16 were connected to the Dell PowerConnect 8024F switches in a stack for cluster communications.

Each load client had two ports connected to a single switch. Each client communicated with the FS8600 cluster via two subnets. The FS8600 cluster presented one NFS export from one NAS volume through all NAS controllers on all client network ports on both subnets.

Item No	Qty	Type	Description	Processing Function
1	16	CPU	Intel Xeon Quad-Core. 2.40GHz	FS8600 NAS processors (NFS, file system, networking)
2	8	CPU	Intel Xeon Six-Core 2.5GHz	SC8000 SAN processors (SCSI, FC, SAS, RAID)

Processing Element Notes

Each NAS appliance has two controllers and each NAS controller has two quad-core processors. Each SAN controller has two six-core processors.

Description	Size in GB	Number of Instances	Total GB	Nonvolatile
FS8600 memory backed by integrated BPS system	24	8	192	NV
System memory and read cache for SC8000 controllers	16	4	64	V
Grand Total Memory Gigabytes			256

Memory Notes

The write cache memory within each FS8600 is protected by internal battery and mirrored to a peer before write operations are acknowledged back to NFS clients. Write cache in the SC8000 is normally protected by a capacitor backed cache card, but write cache was disabled for this testing meaning all writes were commited to disk before being acknowledged.

System under test consisted of four FS8600 appliances (each appliance having two controllers) in a cluster providing a single distributed file system leveraging block storage from two SC8000 Compellent Storage Centers. The block storage space from the two SC8000 systems was combined into a single NAS pool, and one NFS export was created from one NAS volume. Client connections were equally distributed across all eight NAS controllers in the FS8600 cluster.

Item No	Qty	Vendor	Model/Name	Description
1	8	Dell	R620	Dell 1U server dual Quad-Core 2.9GHz 64GB RAM
2	1	Dell	S4810	Dell Force10 48-port 10GbE Switch

LG Type Name	Linux clients
BOM Item #	1
Processor Name	Intel Xeon Quad-Core E5-2690
Processor Speed	2.90
Number of Processors (chips)	2
Number of Cores/Chip	4
Memory Size	64 GB
Operating System	CentOS 6.3 2.6.32-279.11.1.el6.x86_64
Network Type	Intel X520 dual-port 10GbE

Benchmark Parameters

Network Attached Storage Type	NFS V3
Number of Load Generators	8
Number of Processes per LG	256
Biod Max Read Setting	2
Biod Max Write Setting	2
Block Size	256

Testbed Configuration

LG No	LG Type	Network	Target Filesystems	Notes
1..8	Linux Client	1	/spec/nfs	Export on subnet A
1..8	Linux Client	2	/spec/nfs	Export on subnet B

Load Generator Configuration Notes

All eight load generators functioned equally to write to one NFS export across two 10GbE ports each defined on two separate subnets.

Each LG hosted 256 processes which accessed the single file system utilizing all FluidFS NAS controllers and NICs in an even manner. The FluidFS file system is distributed evenly across all NAS controllers and storage devices.

Block size for NFS mount configured to 256KB.

• Config Diagram