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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 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 |
Two 6 Gb SAS drive ports |
Supported drives |
6 Gbps SAS 3.5 in. drives: |
300 GB , 450 GB, 600 GB 15k rpm |
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 and 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 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 IBM 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: 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 |
Drive enclosure |
6 Gb SAS |
External security manager-embedded |
1746-E4A/EXP3524 |
Relative humidity (no condensation) |
EXP3512/EXP3524 drive enclosure |
Operating range |
20% to 80% |
Storage range |
10% to 90% |
Maximum dew point |
79¡ÆF (26¡ÆC) |
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 |
Maximum operating current |
3.90 A at 115 V ac |
2.06 A at 230 V ac
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