|NetApp, Inc.||:||FAS3140 (FCAL Disks with Performance Acceleration Module)|
|SPECsfs2008_nfs.v3||=||40107 Ops/Sec (Overall Response Time = 1.68 msec)|
|Tested By||NetApp, Inc.|
|Product Name||FAS3140 (FCAL Disks with Performance Acceleration Module)|
|Hardware Available||July 2008|
|Software Available||January 2009|
|Date Tested||December 2008|
|SFS License Number||33|
The NetApp® FAS3100 represents the midrange of the FAS family of storage systems with NetApp's unified storage architecture. It features three models: the FAS3140, FAS3160, and FAS3170. FAS3100 performance is driven by a 64-bit architecture that uses high throughput, low latency links and PCI Express for all internal and external data transfers. It's flexible enough to handle primary and/or secondary storage needs for NAS and/or SAN implementations. The FAS3100 system supports as many as 40 Fibre Channel ports or 36 Ethernet ports, including support for both 8Gb Fibre Channel and 10Gb Ethernet. The FAS3140 scales to a maximum of 420 disk drives and 420TB of capacity. Finally, the FAS3100 boasts an efficient, HA-ready 6U form factor which allows for a shared chassis and backplane for dual controllers by sharing of common system power resources.
The NetApp Performance Acceleration Module provides a new way to optimize performance. It is a combination of hardware and tunable caching software which reduces latency and improves I/O throughput without adding more disk drives. Depending on the storage system, up to five of these 16GB modules can be configured per controller as a unified 80GB read cache in the PCI Express slots. For the FAS3140 controller, up to two modules can configured as unified 32GB read cache per controller. The Performance Acceleration Module is optimized to improve the performance of random read intensive workloads such as file services.
|2||1||Controller Chassis||NetApp||FAS3140A-CHASSIS-R5-C||FAS3140,ACT-ACT,Chassis,AC PS,-C,R5|
|3||8||Disk Drives w/Shelf||NetApp||X74015B-ESH4-R5-C||DS14MK4 SHLF,AC,14x144GB,15K,B,ESH4,-C,R5|
|4||2||PAM Adapter||NetApp||X1936A-R5-C||ADPT,Perf Acceleration Module I,PCIe,-C,R5|
|5||1||Software License||NetApp||SW-T3C-NFS||NFS Software,T3C|
|6||2||Software License||NetApp||SW-T3-FLEXSCALE-C||Perf Acceleration Module Software,T3,-C|
|OS Name and Version||Data ONTAP 7.3.1|
|Filesystem Software||Data ONTAP 7.3.1|
|vol options 'volume' no_atime_update||on||Disable atime updates (applied to all volumes)|
|Description||Number of Disks||Usable Size|
|144GB FCAL 15K RPM Disk Drives||112||13.0 TB|
|Number of Filesystems||2|
|Total Exported Capacity||12.8 TB|
|Filesystem Creation Options||Default|
|Filesystem Config||Each filesystem was striped across 56 disks|
|Fileset Size||4675.9 GB|
The storage configuration consisted of 8 shelves, each wth 14 disks. Pairs of shelves were daisy-chained such that the outputs of the first shelf in the pair were attached to the inputs of the second shelf in the pair. The first shelf in each pair had two 4Gbit/s FC-AL loop connections, each connected to one of four integrated FC-AL ports on a different storage controller. Each storage controller was the primary owner of 4 shelves, with the disks in those shelves forming a single disk pool or "aggregate". Each aggregate was composed of 4 RAID-DP groups, each RAID-DP group was composed of 12 data disks and 2 parity disks. Within each aggregate, a flexible volume (utilizing DataONTAP FlexVol (TM) technology) was created to hold the SFS filesystem for that controller. Each volume was striped across all disks in the aggregate where it resided. Each controller was the owner of one volume/filesystem, but the disks in each aggregate were dual-attached so that, in the event of a fault, they could be managed by the other controller via an alternate loop. A separate flexible volume residing in one of the aggregates owned by each controller held the DataONTAP operating system and system files.
|Item No||Network Type||Number of Ports Used||Notes|
|1||Jumbo Frame Gigabit Ethernet||4||Integrated 10/100/1000 Ethernet controller|
There were two gigabit ethernet network interfaces on each storage controller. The interfaces were configured to use jumbo frames (MTU size of 9000 bytes). All network interfaces were connected to a Cisco 6509 switch, which provided connectivity to the clients.
An MTU size of 9000 was set for all connections to the switch. Each load generator was connected to the network via a single 1 GigE port, which was configured with 4 separate IP addresses on separate subnets.
|Item No||Qty||Type||Description||Processing Function|
|1||2||CPU||2.4GHz Dual-Core AMD Opteron(tm) Processor 2216, 512K L2 cache||Networking, NFS protocol, WAFL filesystem, RAID/Storage drivers|
Each storage controller has one physical processor with two processing cores.
|Description||Size in GB||Number of Instances||Total GB||Nonvolatile|
|Storage controller mainboard memory||4||2||8||V|
|Performance Acceleration Module memory||16||2||32||V|
|Storage controller integrated NVRAM module||0.5||2||1||NV|
|Grand Total Memory Gigabytes||41|
Each storage controller has main memory that is used for the operating system and for caching filesystem data. A separate, integrated battery-backed RAM module is used to provide stable storage for writes that have not yet been written to disk.
The WAFL filesystem logs writes and other filesystem modifying transactions to the integrated NVRAM module. In an active-active configuration, as in the system under test, such transacations are also logged to the NVRAM on the partner storage controller so that, in the event of a storage controller failure, any transactions on the failed controller can be completed by the partner controller. Filesystem modifying NFS operations are not acknowledged until after the storage system has confirmed that the related data are stored in NVRAM modules of both storage controllers (when both controllers are active). The battery backing the NVRAM ensures that any uncommitted transactions are preserved for at least 72 hours.
The system under test consisted of two FAS3140 storage controllers housed in a single 6U chassis and 8 storage shelves, each with 14 144GB FC-AL disk drives. The two controllers were configured in an active-active cluster configuration using the high-availability cluster software option in conjunction with an InfiniBand cluster interconnect on the backplane of the shared chassis. A Performance Acceleration Module was present in a PCI-e expansion slot and enabled with default settings on each storage controller. The storage shelves were configured in pairs which were connected to each other via two 4Gbit/s FCAL connections. The first shelf in each pair had one 4Gbit/s FC-AL connection to each storage controller.The system under test was connected to a gigabit ethernet switch via 4 network ports (two per storage controller).
All standard data protection features, including background RAID and media error scrubbing, software validated RAID checksumming, and double disk failure protection via double parity RAID (RAID-DP) were enabled during the test.
|1||25||SuperMicro||SuperServer 6014H-i2||Workstation with 2GB RAM and Linux operating system|
|2||1||Cisco||6509||Cisco Catalyst 6509 Ethernet Switch|
|LG Type Name||LG1|
|BOM Item #||1|
|Processor Name||Intel Xeon|
|Processor Speed||3.40 GHz|
|Number of Processors (chips)||2|
|Number of Cores/Chip||2|
|Memory Size||2 GB|
|Operating System||RHEL4 kernel 2.6.9-55.0.6.ELsmp|
|Network Type||1 x Intel 84546GB PCI-X GigE|
|Network Attached Storage Type||NFS V3|
|Number of Load Generators||25|
|Number of Processes per LG||20|
|Biod Max Read Setting||8|
|Biod Max Write Setting||8|
|LG No||LG Type||Network||Target Filesystems||Notes|
All filesystems were mounted on all clients, which were connected to the same physical and logical network.
Each load-generating client hosted 20 processes. The assignment of processes to filesystems and network interfaces was done such that they were evenly divided across all filesystems and network paths to the storage controllers. The filesystem data was striped evenly across all disks and FC-AL loops on the storage backend.
Other test notes: None.
NetApp is a registered trademark and "Data ONTAP", "FlexVol", and "WAFL" are trademarks of NetApp, Inc. in the United States and other countries. All other trademarks belong to their respective owners and should be treated as such.
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First published at SPEC.org on 02-Feb-2009