linux-kernel - Re: Linux 2.6.29

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Date:	Sat, 04 Apr 2009 17:10:18 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Mark Lord <lkml@....ca>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Chris Mason <chris.mason@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Rees <drees76@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.29

Mark Lord wrote:
> Jeff Garzik wrote:
>>
>> I've attached 'hdparm -I' in case anyone is curious.  It's from 
>> newegg.com, so nothing NDA'd or sekrit.
>>
>> ATA device, with non-removable media
>>     Model Number:       G.SKILL 128GB SSD                       
>>     Serial Number:      MK0108480A545003B       Firmware Revision:  
>> 02.10104
>> Standards:
>>     Used: ATA/ATAPI-7 T13 1532D revision 4a     Supported: 8 7 6 5 & 
>> some of 8
>> Configuration:
>>     Logical        max    current
>>     cylinders    16383    16383
>>     heads        16    16
>>     sectors/track    63    63
>>     --
>>     CHS current addressable sectors:   16514064
>>     LBA    user addressable sectors:  250445824
>>     device size with M = 1024*1024:      122288 MBytes
>>     device size with M = 1000*1000:      128228 MBytes (128 GB)
> ..
> 
> That's odd.  I kind of expected to see the sector size,
> cache size, and perhaps media rotation rate reported there..
> Can you update your hdparm (sourceforge) and repost?
> 
> There might be other useful features of that drive,
> which some of us are quite curious to know about!  :)

Here's output of hdparm 9.12, from Fedora rawhide.

I was unaware that both read-ahead and writeback caching were disabling 
on this drive, until that was pointed out to me in email.  huh.

I'll have to redo my tests...

	Jeff




View attachment "ssd-hdparm.txt" of type "text/plain" (1411 bytes)