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Huge capacity loaded with enterprise-class reliability and performance.
IDEAL FOR Servers, SAN/NAS, scientific computing, life sciences, video surveillance, enterprise backup, document/image management, audio/video media applications, and other demanding write-intensive applications.
*Brand New. WD7500AYYS*
SPECIFICATIONS
Performance Specifications
Rotational Speed
7,200 RPM (nominal)
Buffer Size
16 MB
Average Latency
4.20 ms (nominal)
Load/unload Cycles
50,000 minimum
Seek Times
Read Seek Time
8.9 ms
Write Seek Time
9.6 ms (average)
Track-To-Track Seek Time
0.6 ms (average)
Full Stroke Seek
21.0 ms (average)
Transfer Rates
Buffer To Host (Serial ATA)
3 Gb/s (Max)
Physical Specifications
Formatted Capacity
750,156 MB
Capacity
750 GB
Interface
SATA 3 Gb/s
User Sectors Per Drive
1,465,149,168
Physical Dimensions
English
Height
1.028 Inches
Length
5.787 Inches
Width
4.00 Inches
Weight
1.61 Pounds
Metric
Height
26.1 mm
Length
147 mm
Width
101.6 mm
Weight
0.73 kg
Environmental Specifications
Shock
Operating Shock (Read)
65G, 2 ms
Non-operating Shock
250G, 1 ms
Acoustics
Idle Mode
28 dBA (average)
Seek Mode 0
34 dBA (average)
Temperature (English)
Operating
41° F to 131° F
Non-operating
-40° F to 149° F
Temperature (Metric)
Operating
5° C to 55° C
Non-operating
-40° C to 65° C
Humidity
Operating
5-95% RH non-condensing
Non-operating
5-95% RH non-condensing
Altitude (English)
Operating
-1,000 feet to 10,000 feet
Non-operating
-1,000 feet to 40,000 feet
Altitude (Metric)
Operating
-305M to 3,050M
Non-operating
-305M to 12,200M
Vibration
Operating
Linear
20-300 Hz, 0.75G (0 to peak)
Random
10-300 Hz, 0.008 g² / Hz
Non-operating
Low Frequency
5-20 Hz, 0.195 inches (double amplitude)
High Frequency
20-500 Hz, 4.0G (0 to peak)
Features
With 1.2 million hours MTBF, 5-year limited warranty, 3 Gb/s SATA technology, and enhanced vibration tolerance, WD RE2 drives offer an ideal combination of reliability, high capacity, and optimum performance for enterprise applications.
Superior reliability - Designed and manufactured to provide server-class reliability in high duty cycle environments. With 1.2 million hours MTBF, these drives have the highest available reliability rating on a high-capacity drive.
High capacity - Up to 750 GB of storage packed with server-class features and low cost-per-gigabyte value.
Fast - With 3 Gb/s data transfer rate, native command queuing (NCQ), and 16 MB cache, these drives deliver optimum performance.
Low power - Active Power Save™ delivers best-in-class seek mode power consumption through an advanced WD firmware which conserves power in active seek modes without degrading performance.
RAID-specific, time-limited error recovery (TLER) - Significantly reduces drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.
Rotary Acceleration Feed Forward (RAFF™) - Provides enhanced vibration tolerance by optimizing operation and performance when the drives are used in vibration-prone, multi-drive systems such as rack-mounted servers or network storage.
Perpendicular Magnetic Recording (PMR) - WD RE2 drives employ PMR technology to achieve even greater areal density.
Frequently Asked Questions
Q:
Regular 7200 RPM desktop drives run fine in RAID environments; why do I need these drives?
A:
Unlike regular desktop drives, WD RE2 hard drives are engineered and manufactured to enterprise-class standards and include features such as time-limited error recovery, Active Power Save, and RAFF that make them an ideal solution for RAID.
Q:
What is time-limited error recovery and why do I need it?
A:
Desktop drives are designed to protect and recover data, at times pausing for as much as a few minutes to make sure that data is recovered. Inside a RAID system, where the RAID controller handles error recovery, the drive needn't pause for extended periods to recover data. In fact, heroic error recovery attempts can cause a RAID system to drop a drive out of the array. WD RE2 is engineered to prevent hard drive error recovery fallout by limiting the drive's error recovery time. With error recovery factory set to seven seconds, the drive has time to attempt a recovery, allow the RAID controller to log the error, and still stay online.
Q:
Don't I need SCSI data integrity For RAID environments?
A:
These drives include 32-bit CRC error checking for all bits transmitted: command, data, and status and error checking to compare the data read back from the hard drive to the data originally written to the hard drive.
Ideal For
Servers, SAN/NAS, scientific computing, life sciences, video surveillance, enterprise backup, document/image management, audio/video media applications, and other demanding write-intensive applications.
WARRANTY
1 year manufacturer
How do you determine shipping rate?
Shipping rate is based on the weight or dimension of the package, whichever is heavier. The minmium weight is 1 pound so for things under 1 pound like laptop hard drive, the shipping rate is calculated as 1 pound. Sometimes, for smaller item like USB Flash memory keys, we ship out by Canada Post small envelope to save the shipping cost for you. Handling charge + the packaging material will be also be added to the final price.
Which type of shipping service do you use?
Shipping to US, we normally ship by Fed Ex standard ground shipping with the exceptions of P.O. Box, APO/PPO, and RR addresses. These types of addresses will be shipped via Canada Post.
Shipping within Canada, we normally ship by Purolator / CANPAR / Canada Post with the exceptions of P.O. Box, Apartment #, APO/PPO, and RR addresses. These types of addresses will be shipped via Canada Post.
How long does it take to get to my place?
Package is usually shipped within 2 business days after the payment is received in full. The arrival date will vary depending on where you live. Fex Ex pickup truck comes to our warehouse every Wednesday and Friday. Therefore, we give out tracking numbers on every Wednesday & Friday.
Since our office hours are Monday to Friday 9am - 6pm EST, purchases over the weekend will be processed on Monday.
Some items crossing the border may be delayed in arrival due to customs. It should take about 6 - 12 days but some take as long as 20 - 25 so please be patient. Your parcels will arrive and we have no control over things like heightened security alerts and customs.
What's your return policy like?
Item must be returned within 7 days. Please contact us before sending the item back so that you can get a valid RMA# or SRA#.
RMA# will be assigned only for exchanging items whereas SRA# will be assigned if you want refund. Return product should be in original good condition and packaging with attached a valid RMA# or SRA# on the box.
Refund item cost only, not including the shipping and handling fee. Money back guarantee. No walk-in return/replacement service will be accepted.
What's your feedback policy like?
We post feedback for all buyers who have posted feedback for us. If you are satisfied with your transaction with us, please leave your comment on our file and we will be sure to reciprocate the same kindness to you.
What's your inquiry policy like?
Please be advised we will answer your questions usually within 24 hours, and only during our business hours which are from 9-6 EST, Monday to Friday. We will answer your inquires as quickly as possible. Thank you for your patience. Further, responses may go into your junk/spam folder, so please check your junk/spam for our emails.
Sales order fulfillment: eb-style@overstock-king.com Technical support:support@overstock-king.com 1.800.255.8048 (From Canada) 1.800.883.0206 (From USA) Business hours: Monday to Friday 9am-6pm EST For fast response, please include ebay item# on email subject.
*The estimated delivery time is based on the seller's handling time, the shipping service selected, and when the seller receives cleared payment. Sellers are not responsible for shipping service transit times. Transit times may vary, particularly during peak periods.
Item must be returned within 7 days. Please contact us before sending the item back so that you can get a valid RMA#.
Return product should be in original good condition and packaging with attached a valid RMA# on the box. See Support and Service section for details.
Refund item cost only, not including the shipping and handling fee. Money back guarantee.
No walk-in return/replacement service will be accepted.
The buyer is responsible for return shipping costs.
Your payment is expected within 7 days of auction close. Canada Ontario Buyers add 13% sale Taxes(GST+PST)/12.875% (QST/GST for QC). Other Canada provinces buyers add 5% Sale Tax(GST). No tax charge for outside canada buyers. We accept Paypal only. Failure to pay for an auction will result in negative feedback and we will process a non-paying bidder complaint with the auction venue. Price in US$.
Seller assumes all responsibility for this listing.
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