SPECsfs97_R1.v3 Result

EMC Corp. :	EMC Celerra NS20 Multi-protocol Storage
SPECsfs97_R1.v3 =	22248 Ops/Sec (Overall Response Time = 2.17 msec)

Performance

Throughput (ops/sec)	Response (msec)
2200	0.7
4459	0.8
6631	1.2
8896	1.5
11135	1.8
13321	2.2
15573	2.7
17908	3.4
19929	4.3
22248	6.1

Configuration

Server Configuration and Availability
Vendor	EMC Corp.
Hardware Available	November 2007
Software Available	September 2007
Date Tested	November 2007
SFS License Number	47
Licensee Locations	Hopkinton, MA

CPU, Memory and Power

Model Name EMC Celerra NS20 Multi-protocol Storage

Processor 2.8 GHz Intel Pentium 4 (Nocona)

# of Processors 2 cores, 2 chips, 1 core/chip with HT Technology enabled (2 chips per blade)

Primary Cache 16KB Data + 12k instruction uOPs

Secondary Cache 1 MB (unified)

Other Cache N/A

UPS N/A

Other Hardware N/A

Memory Size 4 GB

NVRAM Size N/A

NVRAM Type N/A

NVRAM Description N/A

Server Software

OS Name and Version DART 5.5.31.6

Other Software N/A

File System UxFS

NFS version 3

Server Tuning

Buffer Cache Size Dynamic

# NFS Processes 4

Fileset Size 212.7 GB

Network Subsystem
Network Type	Jumbo Gigabit Ethernet
Network Controller Desc.	Gigabit Ethernet Controller
Number Networks	1
Number Network Controllers	4
Protocol Type	TCP

Switch Type Cisco 6500 Gbit Switch (Jumbo)

Bridge Type N/A

Hub Type N/A

Other Network Hardware N/A

Disk Subsystem and Filesystems

Number Disk Controllers 2

Number of Disks 60

Number of Filesystems 1

File System Creation Ops default

File System Config The file system is striped across 60 disks. These disks were bound into 12 RAID-5 LUNs with a stripe element size of 64 KB. The first 5 disks share space with the Celerra reserved LUNs that contain the file system logs.

Disk Controller Integrated 4 GB Fibre Channel

# of Controller Type 1

Number of Disks 60

Disk Type 15K RPM 146 GB Fibre Channel (part # 005048701)

File Systems on Disks File system fs1 (60 disks), UxFS log shares 5 disks

Special Config Notes 1 GB memory per SP (Configured as 278 MB Mirrored write cache, 32 MB read cache per SP of the CX3-10 Storage Array). See notes below.

Load Generator (LG) Configuration
Number of Load Generators	15
Number of Processes per LG	10
Biod Max Read Setting	5
Biod Max Write Setting	5

LG Type LG1

LG Model Dell PowerEdge 1850

Number and Type Processors 2 x 3 GHz Intel P4 Xeon

Memory Size 2 GB

Operating System Linux 2.6.9-11.ELsmp

Compiler GCC 3.4.3

Compiler Options None

Network Type Intel Corporation 82541GI/PI Gigabit Ethernet Controller (rev 05)

Testbed Configuration

LG # LG Type Network Target File Systems Notes

1..15 LG1 1 /fs1 N/A

Testbed Configuration
LG #	LG Type	Network	Target File Systems	Notes
1..15	LG1	1	/fs1	N/A

Other Notes

Server tuning:
param ufs inoBlkHashSize=170669 (inode block hash size)
param ufs inoHashTableSize=1218761 (inode hash table size)
param ufs updateAccTime=0 (disable access-time updates)
param nfs withoutCollector=1 (enable NFS-to-CPU thread affinity)
param file asyncthreshold=8 (maximum number of blocks cached by NFSv3 async writes)
param file prefetch=0 (disable DART read prefetch)
param kernel maxStrToBeProc=16 (no. of network streams to process at once)
param kernel outerLoop=8 (8 consecutive iterations of network packets processing)
param kernel buffersWatermarkPercentage=5 (flushing buffer cache threshold)
file initialize nodes=1000000 dnlc=1656000 (no. of inodes, no. of dirctory name lookup cache entries)
nfs start openfiles=980462 nfsd=4 (no. of open files and 4 NFS daemons)
Storage array notes:
The integrated CX3-10 used for storage exposes LUNs across multiple Fibre ports.
Each LUN is configured 4+1 RAID 5 on 5 physical drives. Each LUN is 534 GB in size,
except for the LUN on the first five disks, which is 372 GB.
There are 2 fibre ports which connect each NAS X-blade to the X-Blade of
CX3-10 SPs (1 connection per CX3-10 SP). Each of the 2 CX3-10 blades has 1 GB
of memory. 278 MB write cache was configured per SP pair. The write cache is
mirrored between the CX3-10 SP's. 32 MB read cache was configured on each
CX3-10 blade.
The memory is backed up with sufficient battery power to safely destage all
data in the write cache to the disk in the event of a power failure.

First published at SPEC.org on 04-Dec-2007

LG Type	LG1
LG Model	Dell PowerEdge 1850
Number and Type Processors	2 x 3 GHz Intel P4 Xeon
Memory Size	2 GB
Operating System	Linux 2.6.9-11.ELsmp
Compiler	GCC 3.4.3
Compiler Options	None
Network Type	Intel Corporation 82541GI/PI Gigabit Ethernet Controller (rev 05)