SPECsfs97_R1.v3 Result

EMC Corp. :	Celerra NS704G Failover Cluster / CLARiiON CX700x2
SPECsfs97_R1.v3 =	100150 Ops/Sec (Overall Response Time = 2.63 msec)

Performance

Throughput (ops/sec)	Response (msec)
9101	0.9
18340	1.1
27458	1.5
36549	1.9
45758	2.2
55090	2.5
64168	2.9
73617	3.4
83077	4.0
92154	4.9
100150	8.3

Configuration

Server Configuration and Availability
Vendor	EMC Corp.
Hardware Available	September 2004
Software Available	September 2004
Date Tested	August 2004
SFS License Number	47
Licensee Locations	Hopkinton, MA

CPU, Memory and Power

Model Name Celerra NS704G Failover Cluster / CLARiiON CX700x2

Processor 3.06 GHz Intel Xeon P4

# of Processors 6 cores, 6 chips, 1 core/chip with HT Technology enabled (2 chips per Data Mover)

Primary Cache Execution Trace Cache 12K uOPs + Data Cache 8KB

Secondary Cache 512KB (unified)

Other Cache N/A

UPS N/A

Other Hardware N/A

Memory Size 12 GB (4 GB per Data Mover)

NVRAM Size N/A

NVRAM Type N/A

NVRAM Description N/A

Server Software

OS Name and Version DART 5.3

Other Software Linux 2.4.9-34.5306.EMC on Control Station

File System UxFS

NFS version 3

Server Tuning

Buffer Cache Size Dynamic

# NFS Processes 4

Fileset Size 965.3 GB

Network Subsystem
Network Type	Jumbo Gigabit Ethernet
Network Controller Desc.	Gigabit Ethernet Controller
Number Networks	1
Number Network Controllers	6 (2 per Data Mover)
Protocol Type	TCP

Switch Type Cisco 6509 Gbit Switch (Jumbo)

Bridge Type N/A

Hub Type N/A

Other Network Hardware N/A

Disk Subsystem and Filesystems

Number Disk Controllers 6 [2 per active Data Mover]

Number of Disks 298

Number of Filesystems 3

File System Creation Ops N/A

File System Config Each filesystem is striped (8KB element size), across 96 disks (32 LUNs) for fs1, fs2 and fs3

Disk Controller Integrated 2Gb Fibre Channel

# of Controller Type 6 [2 per active Data Mover]

Number of Disks 294 (dual ported)

Disk Type Seagate Fibre Channel 146GB 10k-rpm

File Systems on Disks Filesystem fs1 (96); Filesystem fs2 (96); Filesystem fs3 (96); Storage utility, OS, and UxFS Log (5); Second Storage utility (5)

Special Config Notes 4GB cache per SP on the storage arrays. 3072 MB of that 4GB cache is mirrored write cache. See notes below.

Load Generator (LG) Configuration
Number of Load Generators	24
Number of Processes per LG	30
Biod Max Read Setting	5
Biod Max Write Setting	5

LG Type LG1

LG Model Sun SPARC 220R

Number and Type Processors 2 x 450 GHz SPARC

Memory Size 512 MB

Operating System Solaris 2.8

Compiler Sun Forte 6.2

Compiler Options None

Network Type Intraserve Gbe

LG Type LG2

LG Model Sun SPARC 420R

Number and Type Processors 2 x 450 GHz SPARC

Memory Size 1 GB

Operating System Solaris 2.8

Compiler Sun Forte 6.2

Compiler Options None

Network Type Intraserve Gbe

Testbed Configuration

LG # LG Type Network Target File Systems Notes

1..12 LG1 1 /fs1, /fs2, /fs3 N/A

13..24 LG2 1 /fs1, /fs2, /fs3 N/A

Testbed Configuration
LG #	LG Type	Network	Target File Systems	Notes
1..12	LG1	1	/fs1, /fs2, /fs3	N/A
13..24	LG2	1	/fs1, /fs2, /fs3	N/A

Other Notes

Failover is supported by an additional Celerra NS704G Data Mover that operates in
standby mode. In the event of a Data Mover failure, this unit takes over the
function of the failed unit. The standby Data Mover does not contribute to
the performance of the system and is not included in the processor, memory,
or other components listed above.
Data Mover 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 prefetch=0 (disable DART read prefetch)
param mkfsArgs dirType=DIR_COMPAT (Compatibility mode directory style)
param kernel maxStrToBeProc=16 (no. of network streams to process at once)
param kernel outerLoop=8 (8 consecutive iterations of network packets processing)
file initialize nodes=1000000 dnlc=1656000 (no. of inodes, no. of directory name lookup cache entries)
nfs start openfiles=980462 nfsd=4 (no. of open files and 4 NFS daemons)
param ufs nFlushCyl=32 (no. of UxFS cylinder group blocks flush threads)
param ufs nFlushDir=32 (no. of UxFS directory and indirect blocks flush threads)
param ufs nFlushIno=32 (no. of UxFS inode blocks flush threads)
ap msr write=0x880281 (disables hardware prefetch in the P4)
Storage array notes:
The system under test contained two CLARiiON CX700 storage arrays. Each CX700 contained
149 disks that were configured into 48 three-disk RAID-0 groups plus one five-disk
RAID-5 group. Each group was exported as a single LUN. The RAID-0 groups were used for
file systems. The RAID-5 group was for system use.
The stripe size for all RAID-0 LUNs was 8KB and each LUN was 15GB.
Filesystem (fs1) was built on a volume made by striping across 32 LUNs on the first two SPs
Filesystem (fs2) was built on a volume made by striping across 32 LUNs on the second two SPs
Filesystem (fs3) was built on a volume made by striping across 32 LUNs on all four SPs
The default location and size (64MB) was used for all Data Movers.
Each storage array has dual storage processor units that work as
an active-active failover pair. The mirrored write cache is backed up
with a battery unit capable of saving the write cache to disk in the event of
a power failure. In the event of a storage array failure, the second
storage processor unit is capable of saving all state that was managed
by the first (and vise versa), even with a simultaneous power failure.
When one of the storage processors or battery units are off-line, the
system turns off the write cache and writes directly to disk before
acknowledging any write operations.
The length of time the battery can support the retention of data is 2
minutes - that is sufficient to write all necessary data twice.
Storage processor A could have written 99% of its memory to disk and
then fail. In that case storage processor B has enough battery to
store its copy of A's data as well as its own.

First published at SPEC.org on 31-Aug-2004

LG Type	LG1
LG Model	Sun SPARC 220R
Number and Type Processors	2 x 450 GHz SPARC
Memory Size	512 MB
Operating System	Solaris 2.8
Compiler	Sun Forte 6.2
Compiler Options	None
Network Type	Intraserve Gbe

LG Type	LG2
LG Model	Sun SPARC 420R
Number and Type Processors	2 x 450 GHz SPARC
Memory Size	1 GB
Operating System	Solaris 2.8
Compiler	Sun Forte 6.2
Compiler Options	None
Network Type	Intraserve Gbe