WD GOLD WD121KRYZ 12TB SATA/ 6Gb/s 256MB cache 7200 ot.

BAZAR WD Gold™ DC HA750 Enterprise Class SATA HDD 12TB

• Conquer tough workloads with enterprise-grade WD Gold™ HDDs. Available in 1TB to 14TB* capacities.
• Enhanced reliability with up to 2.5M hours MTBF
• Specifically designed for use in enterprise-grade data centers and storage systems
• Improve performance with our vibration protection technology
• HelioSeal™ technology delivers high capacities with a low power draw [12TB and above]
• Get peace of mind with a 5-year limited warranty
  TECHNICAL SPECIFICATIONS
  PRODUCT FEATURES
  Capacity
  12TB
  Interface
  SATA 6BG/s
  Format: Sector size (bytes)**
  512e
  Native Command Queuing
  Yes
  Form Factor
  3.5-inch
  RoHS Compliant***
  Yes
  PERFORMANCE
  Data Trasnfer Rate‡ (max sustained)
  255 MB/s
  Performance Class
  7200 RPM Class
  Cache‡‡
  256 MB
  RELIABILITY
  MTBF (hours)
  2 500 000
  Annualized Failure Rate (AFR, %)‡‡‡
  0,35
  Load/unload cycles (minimum)
  600 000
  Limited Warranty (years)
  5
  POWER MANAGEMENT
  Average Power Requirements
  Operational§: 6.9 W
  Idle§§: 5.5 W
  Power efficiency indes (W/TB,idle): 0,4
  ENVIRONMENTAL SPECIFICATIONS
  Shock (Read/Write)
  Operating (half-sine wave, 2ms): 70G/70G
  Non-operating (half-sine wave, 2ms): 300G (2ms)
  Temperature
  Operating: 5° C to 60° C
  Non-operating: -40° C to 70° C
  Acoustics (average)
  Idle Mode: 20 dBA
  Seek Mode: 36 dBa
  PHYSICAL DIMENSIONS
  Height (max)
  1.028 in. (26.1 mm) max
  Lenght (max)
  5.787 in. (147.0 mm) max
  Width (± .01 in.)
  4.0 in. (101.6 mm) ± .01 in.
  Weight
  1.46 lb. (.66 kg) ± 10%
  *CAPACITY: One megabyte (MB) is equal to one million bytes, one gigabyte (GB) is equal to 1,000MB (one billion bytes), and one terabyte (TB) is equal to 1,000GB (one trillion bytes) when referring to storage capacity. Accessible capacity will vary from the stated capacity due to formatting, system software, and other factors.
  **FORMAT: 512e: Advanced Format drive with 512-byte logical sectors and 4K (4096-byte) physical sectors; 512n: Native 512-byte logical and physical sectors
  *** RoHS COMPLIANT: Western Digital hard drive products manufactured and sold worldwide after June 8, 2011, meet or exceed Restriction of Hazardous Substances (RoHS) compliance requirements as mandated by the RoHS Directive 2011/65/EU.
  ‡ DATA TRANSFER RATE: MB/s is 1,000,000 bytes
  ‡‡ CACHE BUFFER: Portion of buffer capacity used for drive firmware
  ‡‡‡ MTBF and AFR: Specifications are based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions for this drive model. MTBF and AFR ratings do not predict an individual drive’s reliability and do not constitute a warranty.
  § OPERATIONAL POWER: 8K Queue Depth = 1 @ 40 IOPS
  §§ IDLE POWER: Based on use of Idle_A
  §§§ Some models of Ultrastar are identical in form, fit and function to the respective WD Gold™ model. The only differences are limited to the brand, label and ID string as reported by the firmware. For these drives, any previously completed qualification of the equivalent Ultrastar™ models should not require a re-qualification."

Formát: 3.5"
Rozhraní: interní Serial ATA III
HDD Kapacita (GB): 12000
Otáčky HDD: 7200
Typ disku: HDD
Velikost bufferu (v MB): 256