[ale] Large Drives [Re: XFS on Linux - Is it ready for prime time?]

Thu Apr 22 16:57:14 EDT 2010

NewEgg had 2TB for $139 after MIR this week as I recall.

Regarding SSD, I am seeing some interest in using them for fast access and
more reliable storage (see Texas Memory Systems and Super Talent RAID
drives). Those are obviously not for the low budget buyers. But with
advances in static memory storage speed and capacity, I do expect to see
prices dropping in the mid if not near term. I quite agree that they may
find homes in corporate desktops relatively soon. I also think they will
give rotating media a run for the money in high performance/high reliability
environments. I was just dreaming about the RAIDed SSDs for the house.

Regarding <$50 rotating media, I expect you are right about that too. There
is a great deal more assembly required than with SSDs not to mention
shipping costs, which become a significant factor for anything that retails
that cheap. What has been happening for years will probably continue, the
price bottoms out ~ $50 but the capacity and speed keeps increasing.

GC

On Thu, Apr 22, 2010 at 3:53 PM, Greg Freemyer <greg.freemyer at gmail.com>wrote:

> fyi:
>
> Fry's was selling Seagate 1.5TB drives for $89 over the weekend (limit
> 2). I don't know if that sale is still ongoing.  That's about $0.06 /
> GB!!!
>
> We actually just had a client call us and they want us to make a copy
> of 1.8 TB of data to a sata drive so they can have a working copy
> seperate from the official copy.  I didn't even that 2TB drives were
> readily available.   $169 at Fry's I think, so 1.5TB's are your best
> $/GB.
>
> Someone said SSD's are dropping in price.  They're still $3 or $4 per
> GB, right?  Compared to well less than $0.10 / GB for rotating.
>
> AIUI, the real cost advantage for SSDs will be when they get a 32GB or
> so sized drive less than $50.
>
> At that point, it will make sense for a lot of corp. desktops to move
> to SSD as a pure cost saving thing.
>
> ie. Rotational will likely never drop below $50 regardless of the
> capacity, but SSD has that possibility and a lot of corporate desktops
> would work just fine with only 32GB or so.
>
>
> Obviously, that will drive a huge amount of demand, so the fabs will
> be capacity limited for many years once that magic transition takes
> place.  So your likely kidding yourself if you think SSDs will drop
> below $1.50/GB in the next few years.
>
> Greg
>
> On Thu, Apr 22, 2010 at 1:05 PM, Greg Clifton <gccfof5 at gmail.com> wrote:
> > Shift in focus to the hardware side of the equation. This thread
> > concentrates on software generated corruption issues, but I have some
> > hardware related questions. First, with RAIDed hard drives, are any file
> > systems more or less likely to cause (or minimize) the likelihood of
> > corruption of the array and if so, why? Second Greg F (and others) have
> > commented on NOT using RAID 5 (and RAID 6) esp. with large hard drives.
> > Looks like 1 or 2 TB hard drives will soon be "standard issue" for
> > everything but notebook computers. So does that mean that RAID should be
> > considered 'dead,' except for 0, 1, 10? Third, would SSDs solve the
> failure
> > from bad sector issues with HDDs and thus be safe for RAID 5/6
> > implementations?
> >
> >
> > On Thu, Apr 22, 2010 at 9:41 AM, Ed Cashin <ecashin at noserose.net> wrote:
> >>
> >> On Wed, Apr 21, 2010 at 9:34 PM, Doug McNash <dmcnash at charter.net>
> wrote:
> >> ...
> >> > Does anyone out there use xfs? How about a suggestion for a stable
> >> > replacement.
> >>
> >> If you use the xfs in the mainline kernel, it's a crap shoot because
> >> of the amount of churn in the code, but
> >> if you use a long-term kernel like 2.6.16.y, 2.6.27.y, or the kernels
> >> maintained by distros, then it ought to be stable (as long as the
> >> distro has enough of a user base for other people to find the xfs
> >> bugs first).
> >>
> >> --
> >>  Ed Cashin <ecashin at noserose.net>
> >>  http://noserose.net/e/
> >>  http://www.coraid.com/
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> >
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>
>
>
> --
> Greg Freemyer
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