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Seagate Expansion 4TB USB 3.0 3.5
  • Owned For: 1 month to 1 year

4 out of 5 eggs Tech knowledge 0 not 3 07/06/2014

This review is from: Seagate Expansion 4TB USB 3.0 3.5" Desktop External Hard Drive STBV4000100

Pros: Runs quiet and cool.
Looks good.
Good, not great transfer rates.

Cons: High DOA and early life failure rates as most large HDD's have these days.
Short warranty.
No eSATA port. Only a con for people like me.

Other Thoughts: This is mainly to correct an erroneous review on someone else's part.
USB 2.0 transfer rates max out at a theoretical 32 MB/s.
Actual transfer rates from HDD's usually run in the 28 MB/s range.
For this drive to get 140MB/s it's obviously running at USB 3.0 rates.
A report of transfer rate is somewhat useless without specifying the conditions under which it was obtained or comparing it to other drives.
System hardware, OS, test used, and options within the test all affect the results.
Others report 160-175 MB/s sequential writes which is in the range Seagate's 5900 RPM drives get and reviews say the drive runs cool which is also a characteristic of a 5900 rather than a 7200 RPM drive. The part # also implies a 5900 RPM drive.

I just ran Crystal disk mark (64 bit) and got 88MB/s on the inner and 118MB/sec on the outer part of my Seagate 3TB NAS drive via JMicron 363 eSata in a Akitio SK-3501 enclosure.
Off the ICH9R eSATA II controller rates are 8% higher, and if connected directly to the Intel controller rates are 17% higher.
The same drive in a different enclosure runs 6% less than the Akitio enclosure off the Intel controller.
Everything affects transfer and IOPS rates.

No drive with spinning platters will match an SSD's transfer or IOPS rates until they discover something new in the laws of physics.

4K R/W and IOPS rates are what matter in Windows and most, not all, other OS's to "feel fast".
Sequential rates matter for large file Transfers. (Video, large databases, etc)

I run dual Samsung 830 SSD's in RAID0 64K stripe for my OS and work partitions.
4X500GB 7200.11 ST3500320AS drives in Intel RAID0 128K stripe for storage.
Newer versions of this drive are 30-40% faster in sequential R/W's

Almost real time (1-5 sec delay) backup using Dsyncronize to a LaCie 2TB and a Seagate 1TB in an Akitio enclosure via Jmicron eSATA.
GB GA-EP35C-DS3R MB, 8 GB, Mint Debian, Win7, XP VM.
CyberPower CP1500LCD UPS.

2X3TB Seagate ST3000VN000 NAS drives in RAID1 in a Buffalo 421e NAS enclosure.

READ FULL REVIEW
Seagate Expansion 4TB USB 3.0 3.5
  • Owned For: 1 month to 1 year

4 out of 5 eggs Tech knowlwdge 0 not 3 07/06/2014

This review is from: Seagate Expansion 4TB USB 3.0 3.5" Desktop External Hard Drive STBV4000100

Pros: Runs cool.
Good, though not great transfer rates.

Cons: Like most large HD's these days a large % of DOA"s and early life failures.

Short warranty.

No eSATA port. Not common anymore so only a con for people like me.

Other Thoughts: This is mainly to correct an erroneous review on someone else's part.
USB 2.0 transfer rates max out at a theoretical 32 MB/s.
Actual transfer rates from HDD's usually run in the 28 MB/s range.
For this drive to get 140MB/s it's obviously running at USB 3.0 rates.
A report of transfer rate is somewhat useless without specifying the conditions under which it was obtained.
System hardware, OS, test used, and options within the test all affect the results.
Others report 160-175 MB/s sequential writes which is in the range Seagate's 5900 RPM drives get and reviews say the drive runs cool which is also a characteristic of a 5900 rather than a 7200 RPM drive. The part # also implies a 5900 RPM drive.

I just ran Crystal disk mark (64 bit) and got 88MB/s on the inner and 118MB/sec on the outer part of my Seagate 3TB NAS drive via JMicron 363 eSata in a Akitio SK-3501 enclosure.
Off the ICH9R eSATA II controller rates are 8% higher, and if connected directly to the Intel controller rates are 17% higher.
The same drive in a different enclosure runs 6% less than the Akitio enclosure off the Intel controller.
Everything affects transfer and IOPS rates.

No drive with spinning platters will match an SSD's transfer or IOPS rates until they discover something new in the laws of physics.

4K R/W and IOPS rates are what matter in Windows and most, not all, other OS's to "feel fast".
Sequential rates matter for large file Transfers. (Video, large databases, etc)

I run dual Samsung 830 SSD's in RAID0 64K stripe for my OS and work partitions.
4X500GB 7200.11 ST3500320AS drives in Intel RAID0 128K stripe for storage.
Newer versions of this drive are 30-40% faster in sequential R/W's

Almost real time (1-5 sec delay) backup using Dsyncronize to a LaCie 2TB and a Seagate 1TB in an Akitio enclosure via Jmicron eSATA.
GB GA-EP35C-DS3R MB, 8 GB, Mint Debian, Win7, XP VM.
CyberPower CP1500LCD UPS.

2X3TB Seagate ST3000VN000 NAS drives in RAID1 in a Buffalo 421e NAS enclosure.

READ FULL REVIEW
TOSHIBA C55T-A5222 Notebook Intel Celeron 1005M (1.90GHz) 4GB Memory 500GB HDD Intel HD Graphics 15.6
  • Owned For: less than 1 day

Pros: Nice features, price and performance for the money.
Touch screen works well.

Cons: Toshiba bloatware ( their versions of helpful apps).
Made by Toshiba who won't back up their defective products or designs.

Other Thoughts: I've been repairing computers since 1970.
Everything from "mainframes" to personal ones.
Toshiba used to have a good rep, and deservedly so, but in the last 3-4 years they stopped owning their problems and started ignoring them.
Bad design which ripped the hinges from the screen on the P845-4200. Nice laptop. $600 you spent? Too bad.
Needing to take the entire laptop apart to replace the fan on the Satellite 105 series, etc, etc, the list is almost endless these days.
Take some time and read about the horror stories of people who have purchased Toshiba in the past 3 years.
Check out laptop reliability ratings BEFORE you buy any Toshiba product . . . . . then buy another brand.

READ FULL REVIEW

Anonymous's Profile

Display Name: Anonymous

Date Joined: 04/12/08

  • Reviews: 24
  • Helpfulness: 11
  • First Review: 01/10/09
  • Last Review: 07/06/14
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