An Overview of Crucial ^® Storage Executive

Crucial Storage Executiveを利用することにより、Crucial SSDの問題の診断に関する追加のレポートやユーティリティを入手できます。このツールには、OSの重大な不具合からの回復、ドライブ属性の表示、ファームウェアの更新などの機能があります。Storage Executiveユーティリティに詳細なマニュアルが付属していますが、この記事では一部の機能に焦点を当て、その他の追加の詳細事項もご紹介します。

• Windows® 7 or later (only 64-bit versions supported)
• SATA or PCIe® connections for any drives Storage Executive is being used with (USB connections may allow partial functionality, but full support for all Storage Executive features requires a direct SATA or PCIe connection.

Storage Executive is compatible with the Crucial M500, M550, MX-series, BX-series SSDs, and the P series of SSDs, and diagnostic features of the tool are compatible with Crucial's X-series Portable SSDs. Limited functionality may be provided in older Crucial models or non-Crucial storage devices, but is not guaranteed or supported by Crucial.

The System Information screen summarizes memory and storage device details. It provides a PC overview on RAM installed and shows Virtual Memory as well (as a sum of your installed RAM and page file sizes). The lower portion of this screen provides overviews of connected storage, including part and serial numbers, installed firmware, and summaries of free and used space. Also featured are quick access buttons for S.M.A.R.T. reporting and firmware updates. 

When choosing a management option from the column on the left side of the screen, you must also select a drive to bring up device-specific management options for that drive.

Individual Drive Details screens provide more drive information, including a value for Total Bytes Written to allow monitoring of NAND write-wear, as well as what driver and interface the SSD is utilizing.

A drop-down menu on this screen (in the upper-left) provides a Get Debug Data option for your system, which will generate error logs and may be requested by Crucial Support for diagnostics of system malfunctions. These error logs are saved in .zip archives in the directory Storage Executive is installed under.

This screen also identifies possible performance optimizations which can be made in Windows. Suggestions such as enabling AHCI mode and modifying write-cache buffer flushing settings may improve performance or stability, though are not beneficial for all users and may not be possible in some host systems. Also, several of these changes are more involved than some users may be comfortable with adjusting on their own. Refer to your operating system support for specific instructions and risks around these changes, but be aware that if an adjustment seems especially invasive or of limited usefulness, they are not necessary for general use of your SSD as a high-performance storage device.

This screen summarizes the drive's self-reporting values around performance, and these values are collectively used to determine the drive's overall health as shown throughout Storage Executive. More details on SMART attributes and how to interpret them are available here.

This screen allows you to confirm your installed SSD firmware and check Crucial.com for any available updates. If an update is found, it can be applied through this screen, but will force a reboot during the update process unless the box labelled Perform Live Firmware Update is also checked. Ensure that you have no open programs, or have saved your data in any open programs, before running this function. If you opt to reboot for the live update and have multiple drives of the same model (for example two MX200 drives), all drives will be updated when this process is run on a computer. 

If you scroll down on this screen, there are Release Notes for the update. The field for manually selecting a firmware update file is designed for enterprise-class Micron-branded SSDs, and is not supported by Crucial-branded drives. Documentation for using Crucial's downloadable .ISO is available on our SSD firmware and support page for eligible drives if you are unable to update within Storage Executive.

This operation removes all data, including partitions, from the targeted drive. This will leave the drive in a state requiring reinitialization for further use. This process will force a reboot of your system to complete so, as with the firmware update, ensure you are prepared before allowing the reboot to continue.

On a password-protected TCG-enabled drive this function will be unavailable, as shown above, and a PSID revert will need to be used in its place.

The Format operation is used to low level format NVMe drive. This particular tool is used when the host wants to change the LBA data size and/or metadata size, which is not necessary for most SSD applications. Most users can easily and more effectively use their operating system's built-in tools for reformatting SSDs, when necessary.

This returns an SSD to its original state if it has been TCG-enabled with a drive password, locking the hardware encryption, and can no longer be accessed using the original credentials, such as if the password is lost. This will also remove all data from the drive similar to the Sanitize Drive operation. This process requires the user to enter the 32-character PSID printed on the drive's label. It will immediately begin the operation and after a few seconds indicate the PSID Revert has completed and all data has been removed from the SSD.

Momentum Cache is a feature that allows you to use up to 25% of available system memory, though no more than 4GB, to cache write commands to the Crucial SSD to improve its write performance. An abrupt loss of power using Momentum Cache carries some risk of data loss and file corruption. To try to prevent this, in a laptop Momentum Cache will automatically disable itself when the battery level on a laptop has gone down to 25%. In a desktop, no comparable feature is present, so it is recommended you use an uninterruptible power supply while you are using the Momentum Cache feature.

FlexCap is not supported on Crucial-branded SSDs, only on Micron®-specific lines. It is functionally similar to Over Provisioning outlined below.

Over Provisioning (OP) is a feature of Storage Executive that allows you to allocate additional space on the SSD for the controller to use. Providing additional space for the controller means that functions such as Wear Levelling and Garbage Collection can run more smoothly, and there is less chance the SSD will slow under heavy load. In testing, benefits were mostly seen in OP amounts of 5-10% of total SSD space, but users who will not miss the available storage on their devices may see further benefits for allocating additional space to this feature.

[Device Self-Test（デバイスの自己診断）]は、SSDの簡単な合否判定テストを実行します。この機能はCrucial SSDの全モデルでサポートしているものではなく、不具合の性質に関する完全な詳細情報を提示しないので、多くの場合はSMARTデータの方がSSDのパフォーマンスの異常に関する詳細な情報を得ることができますが、ひと目でわかる概要としては十分役立ちます。

Crucial Storage Executiveはこちらから無料でダウンロードできます。Storage Executiveに関するよくある質問の詳細はこちらをご覧ください。SSDやStorage Executiveに関するサポート、その他Crucialへのお問い合わせは、ソフトウェア右上の[サポート]リンクでお問い合わせ先をご覧ください。その他のサポートオプションについては、こちらのページをご覧ください。

Namespace Management is a feature designed for Micron Enterprise SSDs, and not supported by Crucial products.