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		<title><![CDATA[Forum Ubuntu-fr.org / SSD et taux d'erreurs de lectrure]]></title>
		<link>http://forum.ubuntu-fr.org/viewtopic.php?id=1121001</link>
		<description><![CDATA[Les sujets les plus récents dans SSD et taux d'erreurs de lectrure.]]></description>
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			<title><![CDATA[Réponse à&#160;:  SSD et taux d'erreurs de lectrure]]></title>
			<link>http://forum.ubuntu-fr.org/viewtopic.php?pid=11674021#p11674021</link>
			<description><![CDATA[<p>Salut !</p><p>@Maisondouf<br />Alors un </p><div class="codebox"><pre><code>hdparm -I /dev/sda</code></pre></div><p> me donne</p><div class="codebox"><pre class="vscroll"><code>ATA device, with non-removable media
	Model Number:       Corsair Force 3 SSD                     
	Serial Number:      1136820400000712003B
	Firmware Revision:  1.3     
	Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
	Used: unknown (minor revision code 0x0110) 
	Supported: 8 7 6 5 
	Likely used: 8
Configuration:
	Logical		max	current
	cylinders	16383	16383
	heads		16	16
	sectors/track	63	63
	--
	CHS current addressable sectors:   16514064
	LBA    user addressable sectors:  175834415
	LBA48  user addressable sectors:  175834415
	Logical  Sector size:                   512 bytes
	Physical Sector size:                   512 bytes
	Logical Sector-0 offset:                  0 bytes
	device size with M = 1024*1024:       85856 MBytes
	device size with M = 1000*1000:       90027 MBytes (90 GB)
	cache/buffer size  = unknown
	Nominal Media Rotation Rate: Solid State Device
Capabilities:
	LBA, IORDY(can be disabled)
	Queue depth: 32
	Standby timer values: spec&#039;d by Standard, no device specific minimum
	R/W multiple sector transfer: Max = 16	Current = 16
	Advanced power management level: 254
	DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
	     Cycle time: min=120ns recommended=120ns
	PIO: pio0 pio1 pio2 pio3 pio4 
	     Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
	Enabled	Supported:
	   *	SMART feature set
	    	Security Mode feature set
	   *	Power Management feature set
	   *	Write cache
	    	Look-ahead
	   *	Host Protected Area feature set
	   *	WRITE_BUFFER command
	   *	READ_BUFFER command
	   *	NOP cmd
	   *	DOWNLOAD_MICROCODE
	   *	Advanced Power Management feature set
	    	Power-Up In Standby feature set
	   *	SET_FEATURES required to spinup after power up
	   *	48-bit Address feature set
	   *	Mandatory FLUSH_CACHE
	   *	FLUSH_CACHE_EXT
	   *	SMART error logging
	   *	SMART self-test
	   *	General Purpose Logging feature set
	   *	WRITE_{DMA|MULTIPLE}_FUA_EXT
	   *	64-bit World wide name
	   *	IDLE_IMMEDIATE with UNLOAD
	    	Write-Read-Verify feature set
	   *	WRITE_UNCORRECTABLE_EXT command
	   *	{READ,WRITE}_DMA_EXT_GPL commands
	   *	Segmented DOWNLOAD_MICROCODE
	   *	Gen1 signaling speed (1.5Gb/s)
	   *	Gen2 signaling speed (3.0Gb/s)
	   *	Gen3 signaling speed (6.0Gb/s)
	   *	Native Command Queueing (NCQ)
	   *	Host-initiated interface power management
	   *	Phy event counters
	   *	unknown 76[14]
	   *	unknown 76[15]
	   *	DMA Setup Auto-Activate optimization
	    	Device-initiated interface power management
	   *	Software settings preservation
	   *	SMART Command Transport (SCT) feature set
	   *	SCT Data Tables (AC5)
	   *	DOWNLOAD MICROCODE DMA command
	   *	SET MAX SETPASSWORD/UNLOCK DMA commands
	   *	WRITE BUFFER DMA command
	   *	READ BUFFER DMA command
	   *	Data Set Management TRIM supported (limit 1 block)
	   *	Deterministic read data after TRIM
Security: 
	Master password revision code = 65534
		supported
	not	enabled
	not	locked
	not	frozen
	not	expired: security count
	not	supported: enhanced erase
	2min for SECURITY ERASE UNIT. 
Logical Unit WWN Device Identifier: 0000000000000000
	NAA		: 0
	IEEE OUI	: 000000
	Unique ID	: 000000000
Checksum: correct</code></pre></div><p>De plus ma-config.com me donne </p><div class="codebox"><pre><code>Version du SATA : SATA Rev 2.6</code></pre></div><p> (<a href="http://www.ma-config.com/fr/configurationtemporaire/77292-1_resume.html">http://www.ma-config.com/fr/configurati … esume.html</a>)</p><br /><p>@BlackSlapPower:<br />Oui TRIM est activé ( cf hdparm )<br />Les partitions sont alignées:</p><div class="codebox"><pre><code>user:~/$ fdisk -lu /dev/sda

Disk /dev/sda: 90.0 GB, 90027220480 bytes
255 têtes, 63 secteurs/piste, 10945 cylindres, total 175834415 secteurs
Unités = secteurs de 1 * 512 = 512 octets
Taille de secteur (logique / physique) : 512 octets / 512 octets
taille d&#039;E/S (minimale / optimale) : 512 octets / 512 octets
Identifiant de disque : 0x07eb07ea

Périphérique Amorce  Début        Fin      Blocs     Id  Système
/dev/sda1            2048     8390655     4194304   82  partition d&#039;échange Linux / Solaris
/dev/sda2         8390656   113248077    52428711   83  Linux
/dev/sda3   *   113248256   175831039    31291392    7  HPFS/NTFS/exFAT</code></pre></div>]]></description>
			<author><![CDATA[dummy@example.com (Immortal-PC)]]></author>
			<pubDate>Thu, 29 Nov 2012 00:57:32 +0000</pubDate>
			<guid>http://forum.ubuntu-fr.org/viewtopic.php?pid=11674021#p11674021</guid>
		</item>
		<item>
			<title><![CDATA[Réponse à&#160;:  SSD et taux d'erreurs de lectrure]]></title>
			<link>http://forum.ubuntu-fr.org/viewtopic.php?pid=11673821#p11673821</link>
			<description><![CDATA[<p>Le TRIM est-il activé? les partitions sont elles alignées?</p>]]></description>
			<author><![CDATA[dummy@example.com (BlackSlapPower)]]></author>
			<pubDate>Thu, 29 Nov 2012 00:21:52 +0000</pubDate>
			<guid>http://forum.ubuntu-fr.org/viewtopic.php?pid=11673821#p11673821</guid>
		</item>
		<item>
			<title><![CDATA[Réponse à&#160;:  SSD et taux d'erreurs de lectrure]]></title>
			<link>http://forum.ubuntu-fr.org/viewtopic.php?pid=11673781#p11673781</link>
			<description><![CDATA[<p>Est ce que ton portable a bien un interface SATA 2 (au minimum).<br />Bien souvent les disques 2.5 pouces ne sont qu&#039;en SATA1 et il se pourrait que ton portable n&#039;ait qu&#039;un port SATA1, donc incompatible avec ton SSD.</p>]]></description>
			<author><![CDATA[dummy@example.com (Maisondouf)]]></author>
			<pubDate>Thu, 29 Nov 2012 00:14:29 +0000</pubDate>
			<guid>http://forum.ubuntu-fr.org/viewtopic.php?pid=11673781#p11673781</guid>
		</item>
		<item>
			<title><![CDATA[SSD et taux d'erreurs de lectrure]]></title>
			<link>http://forum.ubuntu-fr.org/viewtopic.php?pid=11671441#p11671441</link>
			<description><![CDATA[<p>Bonjour,</p><p>je viens d&#039;installer un SSD dans mon ordinateur portable. Il a très peu tourné avant. (Il était sur ma tour que j&#039;ai délaissé pour mon portable)<br />Le SSD est un Corsair Force Series 3 -&gt; <a href="http://www.ldlc.com/fiche/PB00118796.html">http://www.ldlc.com/fiche/PB00118796.html</a><br />Depuis que je l&#039;ai installé, j&#039;ai remarqué que mon PC plante assez souvent. Aussi bien sous Windows 7 que sous Ubuntu 12.10<br />Après diverses recherche je suis tombé sur les statistiques de mon disque.<br />Je vois des taux d&#039;erreurs alarmant ! Es ce normal pour un SSD ?</p><p>Cordialement<br />Immortal-PC </p><p><span class="postimg"><img src="http://immortal-pc.info/SSD/SSD_1.png" alt="SSD_1" /></span><br /><span class="postimg"><img src="http://immortal-pc.info/SSD/SSD_2.png" alt="SSD_2" /></span><br /><span class="postimg"><img src="http://immortal-pc.info/SSD/SSD_3.png" alt="SSD_3" /></span></p>]]></description>
			<author><![CDATA[dummy@example.com (Immortal-PC)]]></author>
			<pubDate>Wed, 28 Nov 2012 20:39:00 +0000</pubDate>
			<guid>http://forum.ubuntu-fr.org/viewtopic.php?pid=11671441#p11671441</guid>
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