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– Note that the attribute ID# are listed in decimal and not in Hex with the Attribute_NAME associated with 

Hard Drives.

Figure 8. Reading the SMART drive wear attributes

The table below translates the data from smartctl to the Intel-supported SMART Attributes.

Table 1. Converting SMART attribute values

Attribute

Decimal ID

Hex ID

Raw Value

Host Writes Count

225

E1h

477242

Timed Workload Media 
Wear Indicator

226

E2h

635

Timed Workload Host Read/
Write Ratio

227

E3h

0

Workload Timer

228

E4h

1367

Calculating Estimated Drive Wear

From the data collected using smartctl, and the translated values, you can then calculate the drive wear rate based on 
the given workload. Using this example:

Timed Workload Media Wear (E2h) has a raw value of 635. Therefore, the percentage wear rate = 635/1024 = 

0.620%

Timed Workload Host Read/Write Ratio (E3h) has a normalized value of 0, indicating that 0% of the operations 

were reads. This corresponds with the 100% random write workload set in Iometer.

Workload Timer (E4h) has a raw value of 1367. Therefore the workload ran for 1367 minutes or 22.783 hours.

Given these values, the media wear percentage rate for this workload can then be calculated:

13

Summary of Contents for 320 Series SSD

Page 1: ...Intel 320 Series SSD User s Information for Dell PowerEdge Products ...

Page 2: ...emarks or registered trademarks of Microsoft Corporation in the United States and or other countries Red Hat and Red Hat Enterprise Linux are registered trademarks of Red Hat Inc in the United States and or other countries Novell and SUSE are registered trademarks of Novell Inc in the United States and other countries Oracle is a registered trademark of Oracle Corporation and or its affiliates Cit...

Page 3: ... Not Supported 8 OMSA Warnings 8 System Alerts Page 8 Storage Pages 9 Wear Usage Monitoring 10 The Smartmon Tool 10 Obtaining the Smartmon Tool 10 SMART Attributes 10 Smartmon Tool and smartctl Resources 11 Monitoring Drive Wear Example Using the Smartmon Tool Linux RAID Environments 11 Monitoring Drive Wear Example Using the Smartmon Tool Non RAID Environments 11 Using the Smartmon Tool to Estima...

Page 4: ...4 ...

Page 5: ...Ds PowerEdge R820 PowerEdge R720 PowerEdge R720xd PowerEdge R620 PowerEdge T620 PowerEdge R520 PowerEdge R420 PowerEdge R320 The following controllers are supported by these servers for use with the Intel SSDs H710 H710P H310 Note that the H810 and S110 controllers are NOT qualified for use with the Intel SSDs 11th Generation PowerEdge Servers The following 11th Generation Dell PowerEdge servers a...

Page 6: ... Activity Indicator NOTE The drive activity indicator behavior on an SSD is noticeably different than that of a hard disk drive When SSD I O activity is occurring the indicator will switch on and remain on without blinking This is normal behavior SSD Drive Activity Indicator Pattern Condition Off No drive activity Steady green Drive I O activity occurring Drive Status Indicator The hard drive stat...

Page 7: ...C cards that configures and maintains RAID disk groups and virtual disks For more information on the utility see the Dell PowerEdge RAID Controller User s Guide The utility s Physical Disk Management screen displays physical disk information and action menus On the right side of the screen the SSD s Certified field will be set to No This is normal behavior and does not indicate an issue with the d...

Page 8: ... Warnings NOTE Dell OpenManage Server Administrator OMSA will displays a yellow warning icon next to the Intel SSDs as noted below These warning icons do not indicate a current or pending problem with the drive They only appear because the drive is not recognized by OMSA as a Dell branded drive System Alerts Page A yellow warning icon and a Non Dell supplied disk drive has been detected message wi...

Page 9: ...e Storage Pages Within the Storage section of OMSA a yellow warning icon will appear on the controller page and the Physical Disks page This is normal behavior and does not indicate an issue with the drive Figure 5 Controller page 9 ...

Page 10: ...Solid State Drive Toolbox at http downloadcenter intel com From http sourceforge net apps trac smartmontools wiki NOTE Use the latest version of the Smartmon tool with the Intel 320 Series SSDs SMART Attributes The three primary attributes measured by the Smartmon tool are Workload Timer ID E4h Time elapsed during the current workload Timed Workload Host Reads Percentage ID E3h Percentage of I O o...

Page 11: ... 233 Media Wearout Indicator will indicate the remaining drive life as a percentage under the VALUE column For example a value of 85 means 85 of the drive s life remains Monitoring Drive Wear Example Using the Smartmon Tool Non RAID Environments Note that the specific options in this example may not apply to your system For details of the smartctl commands and options see the resources in Smartmon...

Page 12: ... system where the workload will be measured 5 Run the workload to be evaluated for at least 60 minutes otherwise the drive wear attributes will not be available For this example the workload was run for about 22 hours Iometer was used with a transfer size of 1MB with 100 random writes 6 Do a clean system power down Use either the ATA STANDBY IMMEDIATE command or leave the drive in the system for 1...

Page 13: ...28 E4h 1367 Calculating Estimated Drive Wear From the data collected using smartctl and the translated values you can then calculate the drive wear rate based on the given workload Using this example Timed Workload Media Wear E2h has a raw value of 635 Therefore the percentage wear rate 635 1024 0 620 Timed Workload Host Read Write Ratio E3h has a normalized value of 0 indicating that 0 of the ope...

Page 14: ...itten to in any way After the drive contents are altered secure erasure of the drive to change its usable capacity is not supported Intel 320 SSD ATA Instant Secure Erase Functionality Intel 320 SSDs support cryptography based Instant ATA secure erase functionality The Intel 320 SSD Instant ATA secure ease feature is non TCG Trusted Computing Group based It supports two modes of crypto secure eras...

Page 15: ...ne based support and service options Availability varies by country and product and some services may not be available in your area To contact Dell for sales technical support or customer service issues 1 Visit dell com support 2 Select your support category 3 Verify your country or region in the Choose a Country Region drop down menu at the top of page 4 Select the appropriate service or support ...

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