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IBM System Storage DS3500 Express

Affordable performance and flexibility with greater scalability, efficiency and ease of use

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 Single or dual active, hot-swappable controllers
Cache 1 gigabyte (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 Single controller subsystem: One 6 Gb SAS drive port
Dual controller subsystem: Two 6 Gb SAS drive ports
Supported drives 6 Gbps SAS 3.5-inch drives:
  • 300 GB 15k rpm
  • 450 GB 15k rpm
  • 600 GB 15k rpm
  • 2 TB 7.2k rpm nearline
  • 3 TB 7.2k rpm nearline
  • 600 GB 15k rpm SED

6 Gbps SAS 2.5-inch drives:

  • 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 nearline

Solid-state SAS 2.5-inch drives:*

  • 200 GB SSD
  • 400 GB SSD
RAID levels 0, 1, 3, 5, 6, 10
Storage partitions Support for up to 128 storage partitions (128 standard with an upgrade to 7.84 Code)
Maximum drives supported
  • Up to 192 drives—high-performance SAS drives, nearline SAS drives, SSDs and SED SAS drives
  • EXP3512 (2U 12 3.5-inch drives) and EXP3524 (2U 24 2.5-inch drives) enclosures, which can be intermixed behind a DS3500 Express 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 Fibre Channel switches and directors, and IP switches
Warranty Three-year parts and labor warranty, 9x5 next business day, upgradable to 24x7 with four-hour response
Physical characteristics
Dimensions DS3512: 86.16 mm x 482.47 mm x 551.60 mm (3.39 in. x 18.99 in. x 21.72 in.)
DS3524: 88.07 mm x 482.10 mm x 497.93 mm (3.47 in. x 18.98 in. x 19.60 in.)
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 External security manager-embedded
Relative humidity (no condensation) EXP3512/EXP3524 drive enclosure
Operating range 20% – 80%
Storage range 10% – 90%
Maximum dew point 26°C (79°F)
Maximum gradient 10% per hour
Altitude ranges
Operating 30.5 m below sea level to 3,048 m above sea level (100 ft below to 10,000 ft above)
Storage 30.5 m below sea level to 3,048 m above sea level (100 ft below to 10,000 ft above)
Transit 30.5 m below sea level to 12,000 m above sea level (100 ft below to 40,000 ft above)
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 – 264 V ac
Frequency range 50 – 60 Hz
Maximum operating current 3.90 A at 115 V ac
2.06 A at 230 V ac

* Limitation: Maximum of 24 SSDs per system (a system is defined as the DS3500 Express storage controller and all attached EXP3524 expansion units)

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