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#Is hard disk serial number changer safe how to#
#Is hard disk serial number changer safe serial numbers#
#Is hard disk serial number changer safe install#

#Is hard disk serial number changer safe serial numbers#

Note the serial numbers of any HDDs that have a Model/Product ID of ST91000640NS.

Test-system /chassis/storageadapter/physical-drive # show inquiry-data Test-system /chassis/storageadapter/physical-drive # show detail Test-system /chassis/storageadapter # scope physical-drive 12

If desired, the CLI can also be used to capture hard disk drive information.

The model number of the affected drive is ST91000640NS.

For C-Series CIMC users, the manufacturer model number is displayed in the Product ID field instead of the orderable Product ID.

Choose Inventory > Storage > Physical Drive Info.

After you collect the serial numbers from potentially affected hard drives, use the FN 63737 Serial Number Validation Tool in order to determine if the HDDs are affected.Ĭheck the HDD Serial Number on UCS C-Series Rack Servers.

If desired, the CLI can also be used to capture hard disk drive serial numbers.

If the displayed serial number is longer than 8 alphanumeric digits, note only the first 8 digits.

Note the serial number for each hard disk drive that matches a Product ID (PID) noted in the Products Affected section of this Field Notice.

Choose Chassis > Server > Inventory > Storage.

Note: This method also applies to UCS C-Series Rack Servers that use integrated UCS Manager (UCSM) management. If you have the affected drive installed on a Cisco UCS server, you can retrieve the serial number from your drive and use the FN 63737 Serial Number Validation Tool link in order to confirm whether the unit is on the list of affected units.Ĭheck the HDD Serial Number on UCS B-Series Blade Servers

#Is hard disk serial number changer safe how to#

How To Identify Affected ProductsĪffected hard disk drives are identified by serial number, and can be used in Cisco UCS B-Series Blade Servers and UCS C-Series Rack Servers. See the How to Identify Affected Products section in order to determine if you have an affected HDD.

#Is hard disk serial number changer safe install#

This should only be performed when the replacement drive is ready to install (for example, mounting brackets). If you are unable to hot swap HDDs, the entire server must be powered down. This causes the actuator to fail on occasion. This has been very successful at a temperature of 35 C or higher.Ĭisco was informed by it's supplier, Seagate, that Seagate's supplier of the crash stops used in the 1 TB disk drives had a marginal lot of crash stops that were too "sticky". If you have to power down a drive, you will be less likely to exhibit an unlatch DNR the warmer it is and with a smaller amount of time powered off.

If you do not have to, do not power down drives. Any crash stop affected drive (identified by serial number) that is powered down runs the risk that it will not come back up.Tests suggest that there will not be an issue with UCS C-Series Rack Servers that run at normal operations between 35 C and 50 C. If you are not able to hot swap HDDs, the entire server must be powered down. Remove the drive from the system and install the replacement.Let the drive sit in the system for 30 seconds while the spindle motor spins down and the heads park.Slightly pull the drive from the system connector.The A03-D1TBSATA HDD is hot swappable, so Cisco recommends to hot swap the drives in order to eliminate any issues due to this HDD failure. This is due to a quality issue with the internal crash stop that shortens the HDD operational lifespan. BackgroundĬisco's UCS C-Series Rack Servers with 1 TB HDDs from one vendor (bounded by a serial number range) could fail at a higher than expected rate.

Initially customers might observe data errors and/or eventually the HDD will not function. It is possible that 1 TB Hard Disk Drives (HDD) in a Unified Computing System (UCS) C-Series Rack Server could fail. There were no defects filed with this field notice at the time of publication.