SPECsfs97_R1.v3 Result

Exanet Inc. :	ExaStore EX400FC
SPECsfs97_R1.v3 =	121738 Ops/Sec (Overall Response Time = 1.07 msec)

Performance

Throughput (ops/sec)	Response (msec)
12129	0.6
24256	0.7
36354	0.9
48589	0.9
60810	1.0
73086	1.1
85278	1.2
97688	1.4
109972	1.7
121738	2.5

Configuration

Server Configuration and Availability
Vendor	Exanet Inc.
Hardware Available	Sep 2004
Software Available	Oct 2004
Date Tested	Sep 2004
SFS License Number	211
Licensee Locations	Hertzlia, Israel

CPU, Memory and Power

Model Name ExaStore EX400FC

Processor Intel(R) Xeon(TM) CPU 3.20GHz

# of Processors 8 cores, 8 chips, 1 core/chip (2 cores per node)

Primary Cache 12 K uops I + 8 KBD on chip

Secondary Cache 512KB(I+D) on chip

Other Cache L3 2048 KB

UPS APC SmartUPS 10001U

Other Hardware None

Memory Size 48 GB (12 GB per node)

NVRAM Size 56 GB (all node memory is UPS protected, and 1 GB per 2882 storage controller)

NVRAM Type Node: UPS-protected DRAM, Storage Controller: Battery-backed RAM

NVRAM Description See notes

Server Software

OS Name and Version ExaOS V2.0

Other Software N/A

File System ExaFS

NFS version 3

Server Tuning

Buffer Cache Size Dynamic

# NFS Processes 16 (4 per node)

Fileset Size 1160.4 GB

Network Subsystem
Network Type	Jumbo Frame Gigabit Ethernet (MTU 9000)
Network Controller Desc.	Intel(R) PRO/1000 MT Dual Port Server Adapter
Number Networks	2 (N1 - Server, N2 - Cluster)
Number Network Controllers	8 (2 per nodes: 2 ports server, 2 ports cluster)
Protocol Type	TCP

Switch Type Nortel Baystack 5510 (N1)

Bridge Type N/A

Hub Type N/A

Other Network Hardware N/A

Disk Subsystem and Filesystems

Number Disk Controllers 8 (2 per node)

Number of Disks 232

Number of Filesystems 1 (F1)

File System Creation Ops default

File System Config 16 RAID-Groups of 14 disks each

Disk Controller Adaptec ZCR (zero-channel RAID) 2010S

# of Controller Type 4 (1 per node)

Number of Disks 8 (2 per node)

Disk Type Fujitsu 36 GB 10K RPM

File Systems on Disks OS, write cache dump files

Special Config Notes N/A

Disk Controller Fibre Channel: QLogic Corp. QLA2342 Dual Port Fibre Channel Adapter

# of Controller Type 4 (1 per node, dual ported)

Number of Disks 224

Disk Type Seagate Cheetah ST 373453 FC 73GB 15K RPM

File Systems on Disks F1

Special Config Notes See notes

Load Generator (LG) Configuration
Number of Load Generators	16
Number of Processes per LG	24
Biod Max Read Setting	2
Biod Max Write Setting	2

LG Type LG1

LG Model SuperServer 5013C-T

Number and Type Processors 1x2.8 GHz Pentium 4, 1MB cache

Memory Size 1024 MB

Operating System Linux 2.4

Compiler gcc 3.2

Compiler Options -g -DNO_T_TYPES -DUSE_INTTYPES -DLinux

Network Type Intel e1000 Gigabit Ethernet, MTU = 9000

Testbed Configuration

LG # LG Type Network Target File Systems Notes

1/2/../16 LG1 N1 F1 N/A

Testbed Configuration
LG #	LG Type	Network	Target File Systems	Notes
1/2/../16	LG1	N1	F1	N/A

Other Notes

The system under test is an ExaStore EX400FC which is a four node cluster with four 56-disk LSI 2882 FC Storage Systems.
The cluster is comprised of 2 redundant node pairs. Each pair includes two nodes and two 2882 FC Storage Systems.
Each 2882 FC Storage System contains one 2882 array module which contains two 2882 controllers.
Each 2882 controller has a single connection to a different FC adapter on each of the pair nodes.
Each 2882 controller has 1 GB of battery-backed RAM for a total of 1 GB of storage controller NVRAM.
NVRAM cache mirroring was disabled in the 2882 controller.
Read ahead was disabled in the 2882 controller.
Each 2882 array module holds 14 disks. Each 2882 FC Storage System has three 2 Gb FC Drive Modules.
Each 2 Gb FC Drive Module holds 14 disks.
The 2882 array module and the 2 Gb FC Drive Modules are chained together with redundant FC-ALs.
The single file system, F1, was comprised of 16 RAID-5 sets.
Each RAID set had a stripe size of 256 KB.
Uniform Access Rules (UAR):
Each Node in the cluster has two N1 network ports connected to the server network (N1) for communication
with all Load Generators.
Each node in the cluster has two N2 network ports connected to the cluster network (N2) via two trunked
Extreme Summit1i switches, for communication with the other nodes.
Each node in the cluster accessed 1/4 of the 2882 FC Storage Systems RAID sets.
Each load generator process accessed the cluster through a single node and had full access to all the data.
Each of the four nodes served as the access point for 1/4 of the load generator processes.
Each node reads and writes 1/4 of its dataset to its attached RAID sets;
the other 3/4 are read and written via the cluster network (N2).
Stable Storage:
All memory in the ExaStore was used by the system for general-purpose memory and dynamically sized data cache.
There was an integral UPS for each ExaStore node, which guarantees sufficient power in the event of power failure
to dump the write cache to its local SCSI RAID. In case of unsafe situations (e.g. low battery condition),
the system uses a journal mechanism to synchronously log all write-type operations to the LSI 2882 FC Storage Systems
which are connected to all nodes. When power is restored, the ExaStore system is able to recover all committed data
and metadata operations from journal files or dump files accordingly.
Server Tunings:
The nodes read ahead option was disabled.
The nodes write cache mirroring was disabled. This option enables mirroring of newly written data to a peer node to
support a higher standard of high availability in addition to the UPS backed memory.
All periodical system diagnostics and monitoring jobs were disabled for reproducibility:
The cluster failover manager was disabled.
Logging of periodical statistics was disabled.
Event log compression and mail delivery were disabled.
Exanet and ExaMesh are trademarks of Exanet, Inc.

First published at SPEC.org on 26-Oct-2004

LG Type	LG1
LG Model	SuperServer 5013C-T
Number and Type Processors	1x2.8 GHz Pentium 4, 1MB cache
Memory Size	1024 MB
Operating System	Linux 2.4
Compiler	gcc 3.2
Compiler Options	-g -DNO_T_TYPES -DUSE_INTTYPES -DLinux
Network Type	Intel e1000 Gigabit Ethernet, MTU = 9000