Nomadic storage

server archival workstations vtr

2990C controller provides two 4 Gb/s Fibre Channel (FC) connectivity and native support for serial ATA-I and serial ATA II (SATA 3Gb/s) disk drives – enabling it to power robust, yet cost-effective, storage solutions ideally suited for entry-level to a mide level and secondary storage requirement.

Dual-active 2990 controllers are integrated into a SATA drive enclosure, creating a fully featured 16-drive storage system in a 3U module. Up to 22 additional SATA or FC drive enclosures are supported for a maximum storage capacity 1,536TB of storage with 352 disk drives.

This entry-level controller delivers superior features and functionality to direct-attach (DAS) and storage area network (SAN) environments. Dual-active 2990 controllers are integrated into a SATAII drive module, creating a fully featured 16-drive storage system in a 3U enclosure. Additional SATA or FC drive modules can be added to improve performance and increase capacity.

The 2990 controller combines high-speed, industry-standard components with Nomadic robust firmware to deliver enterprise-class functionality and exceptional value. Each 2990 controller has two 4 Gb/s Fibre Channel host I/O ports (four per dualcontroller storage system) supporting direct host or SAN attachments. Its two SATA interface chips enable the 2990 to natively support up to 16 SATA drives in the initial enclosure. Additional capacity past the 16 SATA drives is achieved through the 2990’s 4 Gb/s FC expansion ports. There are two FC drive-side ports per controller, one of which is external. In dual-controller con•gurations these ports are interconnected through the midplane, creating dual drives loops that provide both controllers redundant access to all attached disk drives.

The 2990 controller’s high-speed bus has the “width” to handle large-block I/O, and the “speed” to process small-block I/O. Its I/O system core provides built-in hardware XOR for high-speed RAID parity calculations – enabling the 2990 controller to easily handle this very compute-intensive task. And online con•guration, recon•guration, expansion, performance tuning and firmware maintenance enable “anytime administration.” All GVS enterprise controllers, from the entry-level 2990 to the high-end, run the same firmware. This long-standing and •eld-proven implementation creates a lower total cost of ownership and higher return on investment by enabling “data intact” upgrades and recon•gurations, common features and functionality, centralized management, a consistent interface and reduced training and support costs, with GVS long lasting experince with storage market with on going R&D enabling to deliver customer with ability to run 99.999% avaliblity as our track record has showen.

Image Image Image
RAID Controller
Controller 2990C/ RAID
Part Number
PN CON-2990C-04
Model Number
Intel XScale XOR engine RAID parity
128MB, 256MB, 1GB and 2GB DDR ECC
Battery Backed for Cache
Connectivity / Interface
Two 4Gb/s host interface
Point to Point suport
Fibre arbitrated loop and switched fabric support
Number of SATA-II driv esuport
16 drive channels
Maximum drive suport
10/100 BaseT Ethernet port for out-of-band management
RS-232 interface connector for troubleshooting & Diag.
Optimized for disk-based performance
On-Screen Manager
Automated I/O path protection with host-based
Yes multipath with failover drives
Online administration, confguration and maintenance
Centralized management from any location
GUI and command line
Extensive operating system, host adapter and SAN infrastructure support
Integrated storage partitioning, snapshot, volume copy and remote mirroring functionality
Common firmware across all Nomadic storage
Maximum sustained throughput rate from SATA disk
495 MB/s
Maximum burst I/O rate from cache
70,000 IOPS
Maximum sustained I/O rate from SATA disk
10,000 IOPS
RAID levels
0, 1, 3, 5, 6 and 1+0 supported
One to 30 drives supported per volume group
One or more storage volumes per volume group
Variable segment sizes per storage volume
Supports multiple caching policies on a storage volume basis
Read enable/disable and write enable/disabl
Write back/write through, read ahead, battery
Automatic drive failure detection
Yes and rebuild using global one or two hot spare drive
Backed, enable and disable mirroring
Dynamic RAID level migration
Dynamic segment size migration
Dynamic storage volume expansion
Dynamic storage volume expansion
One year


Grande Vitesse Systems