Matthew T Wilson
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I have several dozen Hitachi 4TB, 7200 RPM, SATA III, 6 GB/s Enterprise Drives still under Warranty that I am selling, model number HUS724040ALE640.
These are like new. They were used in a cloud storage system for a few months and recently pulled because the storage had to be relocated and plans changed. The S.M.A.R.T. data shows they were on for a total of 151 days. These are made for years of 24/7 operation.
The drives are under USA factory warranty until the end of September 2017.
Asking $170 each for 1 to 3, $160 each for 4-9. $150 each for 10 or more. (Same drive at B&H is $300 ) Buyer pays for shipping.
I also have the same drive with HGST (Hitachi) UK factory warranty until Jan. or Feb. 2018. I'll sell these for $140 plus shipping in any quantity. You can use the warranty if you are in the States, you just need a UK address for HGST to ship the replacement drive to.
Drives are packed and stored in anti-static clamshells. Guaranteed against DOA.
Cash, check or Paypal all okay. I'm in the L.A. area, so pick up is welcome.
I've bought and sold through here in the past. You can see who I am by visiting my website www.yeshuasharvest.org. You can reach through pm or call me on the 855# listed on our website.
A note about the drives:
These are the best drives for Raid Arrays. The most important distinction between these Enterprise drives and consumer desktop and NAS drives is that these Ultrastars have an Unrecoverable Read Error (URE) rate of 1x10[SUP]15[/SUP] instead of the 1x10[SUP]14[/SUP] URE that desktop or NAS drives have. What that means in practical terms is that, with only a 10[SUP]14[/SUP] URE and the loss of a drive in a RAID 5 or RAID 6 array, there is a fair probability that another drive in the array could suffer a URE while rebuilding the array and you could lose all your data. Running a RAID 6 instead of a RAID 5 definitely helps lower the probability of that type of total data loss, but it is still pretty risky; however, with a URE of 10[SUP]15[/SUP], the probability of a URE causing a total failure on rebuild is reduced by a factor of 10! That is why RAID systems designers highly suggest to use enterprise drives in parity arrays.
Beyond URE though, these Ultrastars have a Mean Time Between Failure (MTBF) of 2.0 Million Hours versus the MTBF of NAS drives of 800,000 to 1 Million Hours.
In other words, these are far more reliable drives than you get with NAS or desktop drives.
They also have a number of other important features that make them ideal for 24/7 operation in RAID and server systems.
That's why Hitachi sells them with 5 year warranties instead of 2 or 3 year warranties.
Attached is a screen shot from Hard Disk Sentinel. All disks are tested and 100% healthy.
Attached are some screenshots of BMD Diskspeed running various configurations.
I also use these in 12-disk RAID 6 arrays (36+TB usable) that give 1.2 GB/s throughput using a LSI SAS2 Raid controller. Very nice for Video
These are like new. They were used in a cloud storage system for a few months and recently pulled because the storage had to be relocated and plans changed. The S.M.A.R.T. data shows they were on for a total of 151 days. These are made for years of 24/7 operation.
The drives are under USA factory warranty until the end of September 2017.
Asking $170 each for 1 to 3, $160 each for 4-9. $150 each for 10 or more. (Same drive at B&H is $300 ) Buyer pays for shipping.
I also have the same drive with HGST (Hitachi) UK factory warranty until Jan. or Feb. 2018. I'll sell these for $140 plus shipping in any quantity. You can use the warranty if you are in the States, you just need a UK address for HGST to ship the replacement drive to.
Drives are packed and stored in anti-static clamshells. Guaranteed against DOA.
Cash, check or Paypal all okay. I'm in the L.A. area, so pick up is welcome.
I've bought and sold through here in the past. You can see who I am by visiting my website www.yeshuasharvest.org. You can reach through pm or call me on the 855# listed on our website.
A note about the drives:
These are the best drives for Raid Arrays. The most important distinction between these Enterprise drives and consumer desktop and NAS drives is that these Ultrastars have an Unrecoverable Read Error (URE) rate of 1x10[SUP]15[/SUP] instead of the 1x10[SUP]14[/SUP] URE that desktop or NAS drives have. What that means in practical terms is that, with only a 10[SUP]14[/SUP] URE and the loss of a drive in a RAID 5 or RAID 6 array, there is a fair probability that another drive in the array could suffer a URE while rebuilding the array and you could lose all your data. Running a RAID 6 instead of a RAID 5 definitely helps lower the probability of that type of total data loss, but it is still pretty risky; however, with a URE of 10[SUP]15[/SUP], the probability of a URE causing a total failure on rebuild is reduced by a factor of 10! That is why RAID systems designers highly suggest to use enterprise drives in parity arrays.
Beyond URE though, these Ultrastars have a Mean Time Between Failure (MTBF) of 2.0 Million Hours versus the MTBF of NAS drives of 800,000 to 1 Million Hours.
In other words, these are far more reliable drives than you get with NAS or desktop drives.
They also have a number of other important features that make them ideal for 24/7 operation in RAID and server systems.
That's why Hitachi sells them with 5 year warranties instead of 2 or 3 year warranties.
Attached is a screen shot from Hard Disk Sentinel. All disks are tested and 100% healthy.
Attached are some screenshots of BMD Diskspeed running various configurations.
I also use these in 12-disk RAID 6 arrays (36+TB usable) that give 1.2 GB/s throughput using a LSI SAS2 Raid controller. Very nice for Video
