Re: [PERFORM] Intel's X25-M SSD

2008-09-24 Thread Steve Clark
Scott Carey wrote: A fantastic review on this issue appeared in July: http://www.alternativerecursion.info/?p=106 And then the same tests on a RiData SSD show that they are the same drive with the same characteristics: http://www.alternativerecursion.info/?p=276 Most blamed it on MLC being "sl

Re: [PERFORM] Intel's X25-M SSD

2008-09-23 Thread Scott Carey
A fantastic review on this issue appeared in July: http://www.alternativerecursion.info/?p=106 And then the same tests on a RiData SSD show that they are the same drive with the same characteristics: http://www.alternativerecursion.info/?p=276 Most blamed it on MLC being "slow" to write compared t

Re: [PERFORM] Intel's X25-M SSD

2008-09-23 Thread Bruce Momjian
Greg Smith wrote: > On Mon, 8 Sep 2008, Merlin Moncure wrote: > > > What's interesting about the X25 is that they managed to pull the > > numbers they got out of a MLC flash product. They managed this with a > > DRAM buffer and the custom controller. > > I finally found a good analysis of what's

Re: [PERFORM] Intel's X25-M SSD

2008-09-22 Thread Simon Riggs
On Mon, 2008-09-08 at 19:12 -0400, Greg Smith wrote: > If like me you've been reading all the flash SSD drive reviews... Great post, thanks for the information. -- Simon Riggs www.2ndQuadrant.com PostgreSQL Training, Services and Support -- Sent via pgsql-performance mailing list

Re: [PERFORM] Intel's X25-M SSD

2008-09-19 Thread Greg Smith
On Mon, 8 Sep 2008, Merlin Moncure wrote: What's interesting about the X25 is that they managed to pull the numbers they got out of a MLC flash product. They managed this with a DRAM buffer and the custom controller. I finally found a good analysis of what's wrong with most of the cheap MLC

Re: [PERFORM] Intel's X25-M SSD

2008-09-10 Thread Chris Browne
[EMAIL PROTECTED] ("Merlin Moncure") writes: > I think the SSD manufacturers made a tactical error chasing the > notebook market when they should have been chasing the server > market... That's a very good point; I agree totally! -- output = reverse("moc.enworbbc" "@" "enworbbc") http://www3.symp

Re: [PERFORM] Intel's X25-M SSD

2008-09-08 Thread Scott Carey
I have been paying close attention to the recent SSD performance/price changes with a keen eye to server performance on various workloads and applications. The real barrier is in the controller design, and IP surrounding that. All flash products with any amount of wear-leveling map logical addres

Re: [PERFORM] Intel's X25-M SSD

2008-09-08 Thread Merlin Moncure
On Mon, Sep 8, 2008 at 7:12 PM, Greg Smith <[EMAIL PROTECTED]> wrote: > If like me you've been reading all the flash SSD drive reviews that come > out, you might have also noticed that the performance on write-heavy > workloads hasn't been too far ahead of traditional drives. It's typically > been

[PERFORM] Intel's X25-M SSD

2008-09-08 Thread Greg Smith
If like me you've been reading all the flash SSD drive reviews that come out, you might have also noticed that the performance on write-heavy workloads hasn't been too far ahead of traditional drives. It's typically been hit or miss as to whether the SDD would really be all that much faster on