On Wed, Jun 11, 2008 at 01:51:17PM -0500, Al Hopper wrote:
> I think that I'll (personally) avoid the initial rush-to-market
> comsumer level products by vendors with no track record of high tech
> software development - let alone those who probably can't afford the
> PhD level talent it takes to g
Your key problem is going to be:
Will Sun use SLC or MLC?
>From what I have read the trend now is towards MLC chips which have much lower
>number of write cycles but are cheaper and more storage. So then they end up
>layering ECC and wear-levelling on to address this shortened life-span. A
On Wed, Jun 11, 2008 at 4:31 AM, Adam Leventhal <[EMAIL PROTECTED]> wrote:
> On Jun 11, 2008, at 1:16 AM, Al Hopper wrote:
>>
>> But... if you look
>> broadly at the current SSD product offerings, you see: a) lower than
>> expected performance - particularly in regard to write IOPS (I/O Ops
>> per
On Wed, Jun 11, 2008 at 10:35 AM, Bob Friesenhahn
<[EMAIL PROTECTED]> wrote:
> On Wed, 11 Jun 2008, Al Hopper wrote:
>>
>> disk drives. But - based on personal observation - there is a lot of
>> hype surrounding SSD reliability. Obviously the *promise* of this
>> technology is higher performance
ilton
Sent: Wednesday, June 11, 2008 2:58 PM
To: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] SSD reliability, wear levelling, warranty period
> > btw: it's seems to me that this thread is a little
> bit OT.
>
> I don't think its OT - because SSDs make perfect
>
On Jun 11, 2008, at 11:35 AM, Bob Friesenhahn wrote:
> On Wed, 11 Jun 2008, Al Hopper wrote:
>> disk drives. But - based on personal observation - there is a lot of
>> hype surrounding SSD reliability. Obviously the *promise* of this
>> technology is higher performance and *reliability* with lo
On Wed, 11 Jun 2008, Al Hopper wrote:
> disk drives. But - based on personal observation - there is a lot of
> hype surrounding SSD reliability. Obviously the *promise* of this
> technology is higher performance and *reliability* with lower power
> requirements due to no (mechanical) moving parts
Richard L. Hamilton wrote:
>
> Older SSDs (before cheap and relatively high-cycle-limit flash)
> were RAM cache+battery+hard disk. Surely RAM+battery+flash
> is also possible; the battery only needs to keep the RAM alive long
> enough to stage to the flash. That keeps the write count on the flash
> > btw: it's seems to me that this thread is a little
> bit OT.
>
> I don't think its OT - because SSDs make perfect
> sense as ZFS log
> and/or cache devices. If I did not make that clear
> in my OP then I
> failed to communicate clearly. In both these roles
> (log/cache)
> reliability is of t
Tobias Exner wrote:
> The reliability of flash increasing alot if "wear leveling" is
> implemented and there's the capability to build a raid over a couple of
> flash-modules ( maybe automatically by the controller ).
> And if there are RAM-modules as a cache infront of the flash the most
> prob
The reliability of flash increasing alot if "wear leveling" is
implemented and there's the capability to build a raid over a couple of
flash-modules ( maybe automatically by the controller ).
And if there are RAM-modules as a cache infront of the flash the most
problems will be solved regarding
On Jun 11, 2008, at 1:16 AM, Al Hopper wrote:
> But... if you look
> broadly at the current SSD product offerings, you see: a) lower than
> expected performance - particularly in regard to write IOPS (I/O Ops
> per Second)
True. Flash is quite asymmetric in its performance characteristics.
That sa
On Wed, Jun 11, 2008 at 3:59 AM, Tobias Exner <[EMAIL PROTECTED]> wrote:
> Hi Al,
>
> Sorry, but "leading the market" is not right at this point.
>
> www.superssd.com has the answer to all those questions about SSD and
> reliability/speed for many years..
>
> But I'm with you. I'm looking forward t
Hi Al,
Sorry, but "leading the market" is not right at this point.
www.superssd.com has the answer to all those questions about SSD and
reliability/speed for many years..
But I'm with you. I'm looking forward the coming products of SUN
concerning SSD..
btw: it's seems to me that this thread
I've been reading, with great (personal/professional) interest about
Sun getting very serious about SSD-equipping servers as a standard
feature in the 2nd half of this year. Yeah! Excellent news - and
it's nice to see Sun lead, rather than trail the market! Those of us,
who are ZFS zealots, know
15 matches
Mail list logo
