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IBM System Storage DS3500 Express

Affordable performance and flexibility without sacrificing scalability, efficiency or ease of use

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IBM System Storage DS3500 Express at-a-glance
Characteristics
Part number 1746A2S DS3512 Express Single Controller Storage System
1746A2D DS3512 Express Dual Controller Storage System
1746A4S DS3524 Express Single Controller Storage System
1746A4D DS3524 Express Dual Controller Storage System
1746T4D DS3524 Express DC Dual Controller Storage System
RAID controller Dual active, hot-swappable controllers
Cache 1 GB cache per controller with 2 GB upgrade (battery-backed)
Host interface

Four options:

  • Four or eight 6 Gbps SAS ports
  • Eight 8 Gbps Fibre Channel ports and four 6 Gbps SAS ports
  • Eight 1 Gbps iSCSI ports and four 6 Gbps SAS ports
  • Four 10 Gbps iSCSI ports and four 6 Gbps SAS ports
Drive interface Two 6 Gb SAS drive ports
Supported drives

6 Gbps SAS 3.5 in. drives:

  • 300 GB , 450 GB, 600 GB 15k rpm
  • 1 TB, 2 TB 7.2k, 3 TB 7.2k rpm Nearline
  • 600 GB 15k rpm SED

6 Gbps SAS 2.5 in. drives:

  • 146 GB 15k rpm
  • 300 GB 15k rpm
  • 300 GB 10k rpm
  • 600 GB 10k rpm
  • 900 GB 10k rpm
  • 500 GB 7.2k rpm Nearline
  • 300 GB 10k rpm SED
  • 1 TB 7.2k rpm

Solid State SAS 2.5 in. drives*:

  • 200 GB and 400 GB SSD
RAID levels 0, 1, 3, 5, 6, 10
Storage partitions Support for up to 128 storage partitions (levels: 4 standard with upgrades to 8, 16, 32, 64, 128)
Maximum drives supported
  • Up to 192 drives—high performance SAS drives, nearline SAS drives, SSDs and SED SAS drives
  • EXP3512 (2U 12 3.5-in drives) and EXP3524 (2U 24 2.5-in drive) enclosures, which can be intermixed behind a DS3500 enclosure
Fans and power supplies Dual redundant, hot-swappable
Rack support 2U, 19-inch, industry-standard rack
Management software IBM System Storage DS Storage Manager
SAN support Supported IBM FC switches and directors, and IP switches
Warranty Three-year parts and labor warranty, 9×5 next business day, upgradeable to 24×7 with four-hour response
Physical characteristics
Dimensions DS3512: Height: 3.39 in./86.16 mm, Width: 18.99 in./482.47 mm, Depth: 21.72 in./551.60 mm
DS3524: Height: 3.47 in./88.07 mm, Width: 18.98 in./482.10 mm, Depth: 19.60 in./497.93 mm
Supported systems For a list of currently supported servers, operating systems, host bus adapters, clustering applications and SAN switches and directors, refer to the DS3500 Express Interoperability Matrix.
Model Model description Interface Model includes
1746-E2A/EXP3512
1746-E4A/EXP3524		 Drive enclosure 6 Gb SAS ESM-imbedded
Relative Humidity (no condensation) EXP3512/EXP3524 Drive Enclosure
Operating range 20% to 80%
Storage range 10% to 90%
Maximum dew point 79°F (26°C)
Maximum gradient 10% per hour
Altitude ranges   
Operating 100 ft. (30.5 m) below sea level to 10,000 ft. (3048 m) above sea level
Storage 100 ft. (30.5 m) below sea level to 10,000 ft. (3048 m) above sea level
Transit 100 ft. (30.5 m) below sea level to 40,000 ft. (12,000 m) above sea level
The tabulated power and heat dissipation values are the maximum measured operating power.
Acoustic noise EXP3512/EXP3524 Drive Enclosure
Sound power 6.5 bel
Sound pressure 65 dBA
Power input EXP3512/EXP3524 Drive Enclosure
Nominal voltage range 90 V ac to 264 V ac
Frequency range 50 to 60 Hz
Max operating current 3.90 A at 115 V ac
2.06 A at 230 V ac

* Limitation: Maximum of 20 solid state drives per system (a system is defined as the DS3500 storage controller and all attached EXP3524 expansion units)

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