sunhux
asked on
Worth to use Hybrid HDD in USB casing for performance gain vs the usual 2.5" HDD; shockproofing USB HDD
http://www.amazon.com/Seagate-Laptop-2-5-Inch-Internal-ST1000LM014/dp/B00B99JUBQ/ref=sr_1_1?ie=UTF8&qid=1424452131&sr=8-1&keywords=Seagate+Hybrid+2.5
I'm getting the above Seagate 2.5" Hybrid HDD to be inserted into a USB 3 casing.
Q1:
As this Hybrid HDD is 5400rpm only, will using it in a USB3 casing give at least
10% IO performance compared to using a conventional 5400rpm (those with cache built-in), say the Silicone Power shockproof (& dustproof) one below:
http://www.amazon.com/dp/B00LN0P5Q0/ref=twister_B00TQOYRGO?_encoding=UTF8&psc=1
I plan to use the USB HDD to take backups (Acronis & backing up my data
using Acronis or Robocopy) as well as inserting a HDD into the USB NAS below:
Pogoplug Series 4 Backup Device:
http://www.amazon.com/Pogoplug-Series-4-Backup-Device/dp/B006I5MKZY/ref=sr_1_1?ie=UTF8&qid=1424452500&sr=8-1&keywords=Pogo+plug
I suppose the USB NAS Pogoplug could accept direct SATA connection of the
Seagate Hybrid or via a USB3 HDD : I have about 15 GB of Outlook Pst data
to backup to this Pogoplug device as well as Android/iPhones data (daily
incrementals)
Q2:
Can I shock-proof my HDD in a USB3 casing? Could I just stash up tiny bits
of styrofoam into the USB3 casing? Or those Silicone Power makers have
special 'paddings' to make their HDD shockproof? I read Silicone Power
uses conventional Samsung HDD only
I'm getting the above Seagate 2.5" Hybrid HDD to be inserted into a USB 3 casing.
Q1:
As this Hybrid HDD is 5400rpm only, will using it in a USB3 casing give at least
10% IO performance compared to using a conventional 5400rpm (those with cache built-in), say the Silicone Power shockproof (& dustproof) one below:
http://www.amazon.com/dp/B00LN0P5Q0/ref=twister_B00TQOYRGO?_encoding=UTF8&psc=1
I plan to use the USB HDD to take backups (Acronis & backing up my data
using Acronis or Robocopy) as well as inserting a HDD into the USB NAS below:
Pogoplug Series 4 Backup Device:
http://www.amazon.com/Pogoplug-Series-4-Backup-Device/dp/B006I5MKZY/ref=sr_1_1?ie=UTF8&qid=1424452500&sr=8-1&keywords=Pogo+plug
I suppose the USB NAS Pogoplug could accept direct SATA connection of the
Seagate Hybrid or via a USB3 HDD : I have about 15 GB of Outlook Pst data
to backup to this Pogoplug device as well as Android/iPhones data (daily
incrementals)
Q2:
Can I shock-proof my HDD in a USB3 casing? Could I just stash up tiny bits
of styrofoam into the USB3 casing? Or those Silicone Power makers have
special 'paddings' to make their HDD shockproof? I read Silicone Power
uses conventional Samsung HDD only
SOLUTION
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ASKER
Robocopy gives a % completion reading & it's based on this incrementing reading that I see the write operation
for the first 5-6GB was very fast & then slowed significantly thereafter: not sure if this reading is accurate
for the first 5-6GB was very fast & then slowed significantly thereafter: not sure if this reading is accurate
ASKER
Suppose this SSD buffer helps with the write operation, can I presume that after copying a 5GB file to it,
I can detach/Safe Remove the USB device & it will continue to flush what's in its SSD to the normal HDD
in it?
I can detach/Safe Remove the USB device & it will continue to flush what's in its SSD to the normal HDD
in it?
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ASKER
> Are you contemplating detaching the external as soon as the system indicates the
> copy is complete?
Yes
I've just tried with a conventional USB3 Western Digital HDD & observed that for the
1st 9.9%, the robocopy % incrementing is very fast too & once it hits 10%, it slowed
down. I'm guessing the WD USB3 has some sort of cache in it too & it gets filled up
& thus slows down.
Hmm, the USB3 with Hybrid Seagate in it slows down after hitting about 30%, so
I guess the larger SSD cache could explains this? But 30% is about 4.5GB while
the total size of the SSD published by Seagate is 8GB which does explains the
8GB was filled up
> copy is complete?
Yes
I've just tried with a conventional USB3 Western Digital HDD & observed that for the
1st 9.9%, the robocopy % incrementing is very fast too & once it hits 10%, it slowed
down. I'm guessing the WD USB3 has some sort of cache in it too & it gets filled up
& thus slows down.
Hmm, the USB3 with Hybrid Seagate in it slows down after hitting about 30%, so
I guess the larger SSD cache could explains this? But 30% is about 4.5GB while
the total size of the SSD published by Seagate is 8GB which does explains the
8GB was filled up
ASKER
>http://www.amazon.com/Pogoplug-Series-4-Backup-Device/dp/B006I5MKZY/ref=sr_1_1?ie=UTF8&qid=1424452500&sr=8-1&keywords=Pogo+plug
I guess with the above USB NAS "Pogoplug" I'm getting, this device may become a
bottleneck so a shockproof HDD could be a better choice. Anyone knows of any eSATA
HDD that is shockproof as the Pogoplug could support direct eSATA connection?
By adding a USB3 casing to the eSATA HDD, I'm adding another layer (ie USB3) of
overhead to the Pogoplug
I guess with the above USB NAS "Pogoplug" I'm getting, this device may become a
bottleneck so a shockproof HDD could be a better choice. Anyone knows of any eSATA
HDD that is shockproof as the Pogoplug could support direct eSATA connection?
By adding a USB3 casing to the eSATA HDD, I'm adding another layer (ie USB3) of
overhead to the Pogoplug
ASKER
Or I'll have to DIY the eSATA HDD to make it shockproof?
I have 3 cases of USB HDDs crashes that the experts in EE can't help
me recover & 3 cases of 2.5" laptops HDDs crashes so just wanted
to avoid these nightmares. I have got 2 pcs of Silicone Power USB3
HDDs & they have been doing fine without crashes/bad sectors for
the last 1 year (& hope they continue to be so) : to build in a RAID1
/mirror is a bit costly & I'll need a NAS (never seen USB casings that
build in RAID1)
I have 3 cases of USB HDDs crashes that the experts in EE can't help
me recover & 3 cases of 2.5" laptops HDDs crashes so just wanted
to avoid these nightmares. I have got 2 pcs of Silicone Power USB3
HDDs & they have been doing fine without crashes/bad sectors for
the last 1 year (& hope they continue to be so) : to build in a RAID1
/mirror is a bit costly & I'll need a NAS (never seen USB casings that
build in RAID1)
ASKER
Typo correction
> But 30% is about 4.5GB while the total size of the SSD published by Seagate is 8GB
> which does explains the 8GB was filled up
=> which does NOT explain the 8GB was filled up
> But 30% is about 4.5GB while the total size of the SSD published by Seagate is 8GB
> which does explains the 8GB was filled up
=> which does NOT explain the 8GB was filled up
You could use an eSATA case with a large SSD (500GB SSDs are down to ~ $200) if you want a very fast and shockproof setup.
ASKER
>backup ... but not as much as you might think, since there won't be a clear set of "most frequently used" data that
> it retains in the SSD portion.
In fact when I used robocopy to copy a 15GB pst file (from my laptop's full SSD drive) to this hybrid USB drive, it
appears that the readings for the first 5-6GB was increasing a a very rapid rate & then it suddenly slows down:
I'm guessing the SSD buffer on the Hybrid had been filled up & the write operation to the USB suddenly slows
down, correct me if I'm wrong. Well actually I've ordered this Seagate hybrid, just thinking if I should get
another one or just the shockproof ones. I'll just test with other normal (non hybrid) USB3 to see if I get
the same behavior