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A new version of this product is available. Please see the FAS2600 page.

  • Reduce rack space 2U/4U footprint
  • Power-up time 10 Minutes or less
  • Simplify upgrades/service 0 downtime

Models & Technical Specifications

Choose from three models.




Compare Specifications by Model
chevron-down KEY SPECIFICATIONS (per HA Pair)
Maximum Raw Capacity 1152 TB 1052 TB 672 TB
Internal Drives 24 24 12
Performance HDD Not Applicable 600GB, 900GB, 1.2TB 600GB, 900GB, 1.2TB
Capacity HDD 2TB, 3TB, 4TB,6TB,8TB N/A 2TB, 3TB, 4TB,6TB,8TB
SSD 200GB, 400GB, 800GB 200GB, 400GB, 800GB, 1.6TB, 3.84TB 200GB, 400GB, 800GB, 1.6TB, 3.84TB
Self-encrypting Drives 4TB at 7.2K RPM AES-256, FIPS 140-2 compliant 900GB at 10K RPM, 800GB SSD AES-256, FIPS 140-2 compliant 900GB at 10KRPM, 4TB at 7.2K RPM AES-256, FIPS 140-2 compliant
Maximum Drives (Internal + External) 144 144 84
ECC Memory 36 GB (same for all models)
Controller Form Factor 1 or 2 controllers in a single 4U chassis 1 or 2 controllers in a single 2U chassis 1 or 2 controllers in a single 2U chassis
Maximum Flash Pool 16TB[1] (same for all models)
NVMEM/NVRAM 4GB (same for all models)
Onboard I/O: UTA 2 (8Gb FC/16Gb FC/FCoE/10GbE/1GbE[2]) 8 [3] 8 [3] Not Applicable
Onboard I/O: 10G Base-T Not Applicable 8 [4]
Onboard I/O: 6Gb SAS 4 (same for all models)
Onboard I/O: GbE 4 (same for all models)

[1] 16TB for ONTAP® 8.3 and higher, 4TB for Data ONTAP 8.2. (cluster-mode and 7-mode)
[2] 1GbE optical and copper SFP support starts with the release of Data ONTAP 8.3.1RC. 1GbE is also supported on ONTAP 8.2.4 or later for 7-mode systems.
[3] FAS2552 and FAS2554 onboard UTA2 ports can be configured as either 8Gb/16Gb FC port pair or 10GbE/1GbE port pair and mixed combinations.
[4] FAS2520 onboard ports are 10GBASE-T only that can autorange to 1GbE.

NAS/SAN Scaling 1–8 nodes (4 HA pairs) 1–8 nodes (4 HA pairs) 1–4 nodes (2 HA pairs)
Maximum Drives 576 576 168
Maximum Raw Capacity 4.6PB 4.2PB 1.3PB
Maximum Flash Pool 64TB 64TB 32TB
Maximum Memory 144GB 144GB 72GB
Cluster Interconnect 10GbE 10G Base-T
Storage Protocols Supported FAS2552/FAS2554 = FC; FCoE; iSCSI; NFS; pNFS; CIFS/SMB
OS version Data ONTAP 8.22 or later
High-Availability Features Alternate Control Path (ACP); 
Ethernet-based service processor and ONTAP management interface; redundant hot-swappable controllers, cooling fans, and power supplies
Supported Configurations Hardware Cluster Configurations
  • Single-node cluster
  • Two-node switchless cluster
  • Two-node switched cluster
  • Clusters of HA pairs

Back-End Disks: Single path with single controller or HA pair; dual path with single controller MP-HA with HA pair (best practice)

Consult the Interoperability Matrix Tool for FAS2500 support on earlier versions of ONTAP software.

Disk Shelves Supported DS2246 (2U; 24 drives, 2.5" SFF)
DS4246 (4U; 24 drives, 3.5" LFF)
For complete details on expansion disk shelves and supported media in those shelves, see the NetApp Disk Shelves and Storage Media web page.
Maximum RAID Group Sizes RAID-TEC™ (triple parity, ONTAP 9)
  • SSDs and Performance HDDs: 29 (26 data disks plus 3 parity disks)
  • Capacity HDDs: 21 (18 data disks plus 3 parity disks)
  • SSDs and Performance HDDs: 28 (26 data disks plus 2 parity disks)
  • Capacity HDDs: 20 (18 data disks plus 2 parity disks)
  • SSDs and Performance HDDs: 14 (13 data disks plus 1 parity disk)
  • Capacity HDDs: 7 (6 data disks plus 1 parity disk)
RAID 6 + RAID 1 or RAID 4 + RAID 1 (SyncMirror®)
Host/Client Operating Systems Supported Windows® 2000, Windows Server® 2003, Windows Server 2008, Windows Server 2012, Windows XP, Linux®, Oracle® Solaris, AIX, HP-UX, Mac® OS, VMware®, ESX
Max. Number of LUNs 2048 per controller
Number of Supported Hosts
  • Up to 6 ports per controller configured as front-end (host) connectivity ports
  • Up to 12 directly connected servers per active-active configuration
  • Connected hosts per HA pair: Up to 512 SAN connected servers
FlexVol Volumes Up to 1,000 per controller
Snapshot® Copies Up to 255,000 per controller
Maximum Volume Size 60TB
Maximum Aggregate Size 120TB
Thermal Rating 1,948 BTU (typical)
2,044 BTU (worst case)
1,218 BTU (typical)
1,737 BTU (worst case)
1,164 BTU (typical)
1,843 BTU (worst case)
Weight[1] 111.3 lbs 55.4 lbs 58.6 lbs
Height 7" (17.9 cm), fits into 4U space 3.35" (8.5 cm), fits into 2U space 3.45" (8.76 cm), fits into 2U space
Width 19" IEC rack-compliant (17.6", 44.7 cm)
Depth (without cable management brackets) 22" (56 cm) 19" (48 cm) 20" (50.8 cm)
Operating Temperature, Altitude, and Relative Humidity 50°F to 104°F (10°C to 40°C); at ≤ 3,000m (at ≤ 10,000') elevation; 20% to 80% relative humidity, noncondensing
Nonoperating Temperature and Relative Humidity -40°F to 158°F (-40°C to 70°C); at ≤ 12,192m (at ≤ 40,000') typical of unconditioned airplane cargo bay, 8% to 80% relative humidity, noncondensing, in original container
Operating Acoustic Noise
  • Declared sound power (LwAd) per ISO 9296: 6.1 Bel
  • Sound pressure (LpAm) (bystander positions): 49.6 dB
  • Declared sound power (LwAd) per ISO 9296: 6.2 Bel
  • Sound pressure (LpAm) (bystander positions): 49.6 dB
Compliance RoHS-compliant (PDF)
Safety/ Emissions/ Immunity Safety: EN 60950, CE, CSA 60950, UL 60950, CB IEC60950-1 (all national deviations), EN60825-1, IRAM, CU, BIS, BSMI, SONCAP, NRCS LOA (South Africa)

Emissions/Immunity: FCC Part 15 Class A, ICES-03, CE, KCC, VCCI, AS/NZS CISPR 22, EN55022, EN55024, EN61000-3-2, EN61000-3-3, SABS COC (South Africa), BSMI
(same for all models)

[1] Weight varies by drive type and total number of drives.

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FAS2500 systems come with the NetApp Data ONTAP operating system and advanced data management and data protection tools.


Data Protocols

All supported data protocol licenses included.


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