J
John Doe
Paul said:John Doe wrote:
Both SSDs and hard drives, have firmware. Without any cites at
all, that represents an "exposure" in terms of product quality.
What is your point?
Paul said:John Doe wrote:
Both SSDs and hard drives, have firmware. Without any cites at
all, that represents an "exposure" in terms of product quality.
John Doe said:Ed Light <nobody nobody.there> wrote:
Anything can just go without warning. An experienced computer
user always has backups of important data. Some of us use very
efficient methods for backing up and restoring stuff. Hardware is
rarely an issue. Any reasonable hardware should not be an issue.
What, exactly, makes an SSD any more prone to quitting
without warning than any other device that includes
electronic circuitry like a conventional hard drive?
Any credible citations showing that
sort of failure on high quality SSDs?
John said:What is your point?
Firstly are we talking SATA or PATA drives? SATA have a flat data cable
about a centimetre wide whereas PATA are 5 to 6 centimetres wide.
In my experience 2.5inch drives are noticeably slower than 3.5 inch
drives when I've run them on the same motherboard.
If you are SATA have you thought about an SSD? They can be much faster.
The drive woul dneed to be SATA. Sorry, I forgot to mention it.
I would concentrate most of my energy, in finding a drive brand that
was reliable. Reading the reviews, find out how long they last and so
on.
The Velociraptor is a 2.5" drive which comes with its own heatsink and
3.5" carrier. It is 10000 RPM, and spins faster than many other
desktop drives. The 600GB one, reads out at 180MB/sec. But these
boutique drives aren't for everyone. These ones could be refurbs
rather than new (the low price is a hint).
http://www.newegg.com/Product/Product.aspx?Item=N82E16822236244
There are even some out there, that come without the cooler, and the
available information suggests to take special care cooling them.
I think rather than fall in all those sort of traps, a plain ordinary
3.5" drive for $60 is a better deal. After looking through the reviews
to find which ones are dropping dead too fast.
In terms of reliability, the 2.5" 5400 RPM ones look good, but those
would be slow (seek speed). The 2.5" 7200 RPM look like they're a less
good deal, as the reviews for those are no longer 5 out of 5. The 3.5"
drives are pretty well uniformly bad, and finding a winner there
involves a lot of luck. Each generation can be better or worse than
the previous. For example, I had to stop buying my favorite drive
(again), after the new model showed itself to be a dog (the price drop
was a hint something changed).
The hard drive manufacturers know *exactly* what they're doing. Just
like in the car industry, they have tables for bearing designs, which
trade lifetime versus cost. When a bearing fails on your car, some
engineer just nods his head and checks the tick mark on the chart. "As
designed". At one time, designs used over-engineering because we
didn't know any better. And as the tools improve, every aspect of
quality versus price is known. So whatever comes from Seagate or WD,
they know what the tradeoffs were. There are no "surprises". If they
want to make drives that last like toilet paper, they can.
Paul
So my point is, no matter what the track record is to date,
the same fault modes can exist on SSDs, as on hard drives.
Both have rudimentary firmware, with no attempt to automatically
recover from bad situations.
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From: "Rod Speed" <rod.speed.aaa gmail.com>
Newsgroups: comp.sys.ibm.pc.hardware.storage,alt.comp.hardware.pc-homebuilt,free.usenet,free.spirit
Subject: Re: Is 2.5 inch disk drive suitable for desktop?
Date: Tue, 16 Sep 2014 17:36:44 +1000
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John Doe <always.look message.header> wrote
The technology is completely different.
Yep.
Except that SSD's sometimes quit without warning.
kathy said:No!!!! My mistake. I mean PATA. The old one with the 40 or 80 way
connector.
Paul said:Since both SSD and Hard Drives are firmware/CPU based,
they are both untrustworthy.
And you cannot really estimate when they'll fall over or why.
For example, some bugs are related to how many times the device has been
power cycled.
Some users will see an early failure (because they power cycle the PC a
lot). Others will see the device last a long time (since they don't power
off).
Companies will not always admit why their product failed.
In the case of Seagate, occasionally a company engineer
will make an unofficial statement about why some failures
are occurring. Due to the prototype nature of the SSD
market, the early SSD failures involved a lot of ass covering,
as no maker attempting to capture mindshare, would want
to admit why their product is failing. So you can't always
get a nice neatly laid out report as to what to expect
from SSDs.
So my point is, no matter what the track record is to date,
the same fault modes can exist on SSDs, as on hard drives.
Both have rudimentary firmware,
with no attempt to automatically recover from bad situations.
Firmware flaws would have no representation in SMART. So it's not like you
can be warned there is a bug in the firmware.
And the device is most likely to "disappear", when you first
turn it on in the morning. When the SSD "internally boots".
If a brand new SSD comes out today, I could pick one up
assuming the SSD market is mature and every SSD maker
knows what they're doing. Only to lose all my data a
month later. And then reports come out that it is a
firmware issue. Whether it happens regularly, is not the
issue. It's the possibility that it can happen that counts.
And the track record of firmware issues on hard drives,
should attest to how often these mistakes make it into
the field.
As does my heart (one attack so far) and yet I continue to rely on it.
Can I pick your brains about a hard drive upgrade.
I have an old desktop PC with a 250 MB hard drive. I would like to
increase the storage capacity and think 500 MB may be enough.
The new drive will replace the old one.
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From: "Rod Speed" <rod.speed.aaa gmail.com>
Newsgroups: comp.sys.ibm.pc.hardware.storage,alt.comp.hardware.pc-homebuilt
Subject: Re: Is 2.5 inch disk drive suitable for desktop?
Date: Wed, 17 Sep 2014 05:44:36 +1000
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You can actually with some faults that show
evidence of a problem in the SMART stats.
Those arent bugs.
Those arent bugs.
Doesn't matter what they admit, with plenty
of failures the reason for them is obvious.
But the technology is so different that you
don't often see the same fault modes.
It's a hell of a lot better than rudimentary.
The whole point of remapped sectors with hard drives and spare
cells with SSDs is to recover automatically from bad situations.
Sure, but that is only a minor cause of HDD and SSD failure now.
John Doe said:Regular troll...