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st Connectivity Four (4) 1GbE iSCSI host ports per controller
Concurrent I/O commands
Maximum tagged command queuing: 1024
Drive Connectivity 6Gb/s SAS or 3Gb/s SATA, up to twelve (12) drives per system
Accommodates 3.5-inch disk drives  
S.M.A.R.T. support
NCQ support
Automatic bad-sector reassignment
Dedicated bandwidth to each connected drive
Drive buffer on/off switch

Supported Drives 300GB, 450GB or 600GB - 3.5" 15,000 RPM 6Gb/s SAS drives
1TB or 2TB - 3.5" 7,200 RPM 3Gb/s SATA drives
(For the latest compatibility details, please contact our sales representatives)
Controller single (ESDS S12E-G2140)
Drive Expansion Ports One (1) 6Gb/s SAS 4x wide port per controller
Expansion Enclosure
ESDS S12E-G2140: ESDS S12S-J2000-G
Max. Drives (via expansion enclosure) 84
Data Services (optional) Snapshot, Volume Copy/Mirror
RAID functionality Global, Dedicated or Enclosure hot-spare
RAID levels supported: RAID 0, 1 (0+1), 3, 5, 6, 10, 30, 50, 60
Online expansion by:
Adding new drives
Copying and replacing drives with drives of larger capacity
RAID migration
Configurable stripe size and write policy per array
Intelligent drive handling:
In degraded mode: skips irreparable blocks to continue rebuild
In normal operation: data-block verification and repair
Management Java-based SANWatch management software with multi-pathing support (EonPath)
Serial port for local access to firmware-embedded utility
Automated cache flush and caching mode operation per enclosure status
GUI, Telnet, and SSH system monitoring via Ethernet
Platform-independent firmware manager
Various event notification methods including email, LAN broadcast, fax, SNMP traps, SMS, and MSN
LCD keypad panel for monitoring and access to all configuration options
Module status LED indicators:
Component presence detection & thermal sensors via I2C bus
Green Design 80 PLUS-certified power supplies delivering more than 80% energy efficiency*


ESDS S12E-G2140
One (1) RAID controller module
One (1) 1GB DIMM module, upgradeable to 4GB*
Two (2) redundant 350W power supply units
Two (2) redundant cooling modules
Twelve (12) hot-swappable drive trays
One (1) optional Cache Backup Module (CBM), including one Li-Ion Battery Backup Unit (BBU) and one Flash Backup Module (FBM)
*The default capacity of DIMM modules may vary by region; please contact our sales representatives for details

Dimensions (without chassis ears/protrusions) 2U rackmount, 446mm (W) x 88mm (H) x 513mm (D)
Power ESDS S12E-R2140
Power supplies: Two (2) 530W DC
AC voltage: 100VAC @ 10A to 240VAC @ 5A with PFC (auto-switching)
Frequency: 47-63 Hz
ESDS S12E-G2140
Power supplies: Two (2) 350W DC
AC voltage: 100VAC @ 6A to 240VAC @ 3A with PFC (auto-switching)
Frequency: 47-63 Hz
Environment Temperature: 0 to 40° operating / -40 to 60°C non-operating
Altitude: Sea level to 3,658m (12,000ft) operating / sea level to 12,192m (40,000ft) non-operating
Relative humidity: 5 to 95% non-condensing, operating and non-operating
Weight (without HDDs) ESDS S12E-R2140:14.3kg
ESDS S12E-G2140:17kg
Service and Support Standard Service
3-year limited hardware/software warranty and 8x5 phone, web and email support
Upgrade/Extension Options
Replacement part dispatch on the next business day (up to 5 years)
Advanced Service: 24x7 phone, web and email support + onsite diagnostics on the next business day (up to 5 years)
Premium Service: 24x7 phone, web and email support + onsite diagnostics in 4 hours (up to 5 years)
Extended Standard Service up to 5 years