IBM System Storage DS3500 Express

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
Redundant Array of Independent Disk (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 FC 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 in. drives:
  • 300 GB 15k revolutions per minute (rpm)
  • 450 GB 15k rpm
  • 600 GB 15k rpm
  • 2 TB 7.2k rpm NL
  • 3 TB 7.2k rpm NL
  • 600 GB 15k rpm SED.
6 Gbps SAS 2.5 in. drives:
  • 300 GB 10k rpm
  • 600 GB 10k rpm
  • 900 GB 10k rpm
  • 500 GB 7.2k rpm NL
  • 300 GB 10k rpm SED
  • 1 TB 7.2k rpm NL.
Solid-state SAS 2.5 in. 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, SAS-NL drives, SSDs and SED SAS drives
  • EXP3512 (2U 12 3.5 in. drives) and EXP3524 (2U 24 2.5 in. drives) enclosures, which can be intermixed behind a DS3500 Express enclosure
Fans and power supplies Dual redundant, hot-swappable
Rack support 2U, 19 in., industry-standard rack
Management software IBM System Storage DS Storage Manager
SAN support Supported FC switches and directors and IP switches
Warranty Three years parts and labour warranty, 09:00 to 17:00 next business day, upgradable to around-the-clock with six 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 (HBAs), clustering applications and SAN switches and directors, refer to the DS3500 Express Interoperability Matrix
Model Model description Interface Model includes
1746-A2E/EXP3512
1746-A4E/EXP3524
1746-T4E/EXP3524 DC		 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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