23 Display Properties of a Controller, Array, Logical Device, and a Physical Device

This section lists the display properties of a controller, array, logical device and physical device.

Table 23-1. Controller Display Properties
Property	Tooltip Details
Model	Model of the controller
Status	Status of the controller based on its resources.
Serial Number	A unique number assigned to the controller,used for identification and inventory purposes.
WWN	A World Wide Name (WWN) is a unique identifier of the controller.
Firmware Version	Active firmware version of the controller
Hardware Revision	Describes the hardware revision information about the controller.
Hardware Minor Revision	Describes the hardware minor revision information about the controller.
Manufacturing Part Number	Describes the hardware part number information about the controller.
Manufacturing Spare Part Number	Describes the hardware spare part number information about the controller.
Manufacturing Wellness Log	Describes the hardware wellness log information about the controller.
Installed Memory	Size of Dynamic Random Access Memory(DRAM) installed on the controller
Cache Memory	Cache memory size on controller.
Mode	Mode of the controller on which it is operating
Pending Mode	Pending mode of the controller which will reflect on reboot.
Temperature	Current temperature of the controller
Power Consumption	Power Consumption
NVRAM Checksum Status	NVRAM Checksum Status
maxCache	The maxCache software uses a reserved logical drive comprised of SSDs only, called the maxCache device, for fast read and write caching.
maxCrypto	maxCrypto feature ensures the sensitive data is encrypted and protected by secure 256 bit AES, in-line encryption.
NVMe	Determines whether the Controller supports NVMe drive.
Physical Slot	PCI slot number to which the controller is connected.
Driver Version	Current version of driver installed on the system.
Driver Name	Driver name describes the name of the driver.
Maximum Internal Port PCIe Date Rate	Displays the maximum PCIe PHY rate between the controller and the drives connected to the internal connectors. This property is applicable only if controller has internal connectors.
Maximum External Port PCIe Date Rate	Displays the maximum PCIe PHY rate between the controller and the drives connected to the external connectors. This property is applicable only if controller has external connectors.
Negotiated PCIe Data Rate	Describes the PCIe version, lane width and throughput details.
Maximum Phy Link Rate	Displays the maximum link speed between the controller and the drives connected to the connectors.
PCI Address (Domain:Bus:Device:Function)	Describes the PCI address for the controller.
I2C Address	Describes the Inter-Integrated Circuit(I2C) slave address.
I2C Clock Speed	Describes the Inter-Integrated Circuit(I2C) clock speed.
I2C Clock Stretching Status	Describes the Inter-Integrated Circuit(I2C) clock status.
NCQ	Native Command Queuing, or NCQ, lets SATA disk drives arrange commands into the most efficient order for optimum performance.
Number of Ports	Number of internal and external ports of the controller.
NVMe Configuration	Determines whether the Controller supports creation of logical drives using NVMe drives.
Manufacturing Model	Manufacturing model of the controller.
Manufacturing SKU Number	SKU Number of the controller.
Reboot Required Reasons	Indicates the reason, why a controller cold reboot is required.
SEEPROM Version	Describes the SEEPROM version of the controller.
CPLD Revision	Describes the CPLD revision information about the controller.
Battery/Capacitor Pack Count	Number of battery pack connected to controller
NAND Flash Type	Describes the NAND Flash Type of the controller
NOR Flash Type	Describes the NOR Flash Type of the controller
Hardware Error	Hardware error type occurred on battery backup unit
Post Prompt Timeout	Describes the F1/F2 POST prompt timeout for the controller during system boot.
Rebuild Priority	Determines the urgency with which the controller treats an internal command to rebuild a failed logical drive. At the low setting, normal system operations take priority over a rebuild. At the medium setting, rebuilding occurs for half of the time, and normal system operations occur for the rest of the time. At the medium high setting, rebuilding is given a higher priority over normal system operations. At the high setting, the rebuild takes precedence over all other system operations.
Expand Priority	Determines the urgency with which the controller treats an internal command to expand an array. At the low setting level, normal system operations take priority over an array expansion. At the medium setting, expansion occurs for half of the time, and normal system operations occur for the rest of the time. At the high setting, the expansion takes precedence over all other system operations.
Consistency Check Priority	It is an automatic background process that ensures that you can recover data if a drive failure occurs. The scanning process checks physical drives in fault-tolerant logical drives for bad sectors and it also verifies the consistency of parity data if applicable. The available modes are disable, high, or idle. The idle mode must also specify a delay value. When set to high, the check will run in parallel to host I/O and may have an impact on performance. When set to idle, the check will only run during periods of host inactivity.
Consistency Check Delay	Determines the time interval for which a controller must be inactive before a consistency check is started on the physical drives that are connected to it. The value can be between 0 and 30 to specify the duration of the delay in seconds. A value of 0 disables the scan. The default value is 3 seconds.
Parallel Consistency Check Count	Describes the number of logical devices on which the controller will perform consistency check in parallel.
Raid 6/60 Alternate Inconsistency Repair Policy	RAID 6/60 alternate inconsistency repair policy searches for a single inconsistent strip and repairs the strip on that one drive only.
Consistency Check Inconsistency Notify	Enables the event notification messages and serial debug log messages for mirrored volumes.
Spare Activation Mode	Enables the controller firmware to activate a spare drive. The firmware starts rebuilding a spare drive only when a data drive fails when the mode is Failure. With the predictive failure activation mode, rebuilding can begin before the drive fails when a data drive reports a predictive failure (SMART) status which will reduce the likelihood of data loss that could occur if an additional drive fails.
Maximum Drive Request Queue Depth	Queue Depth controls the behavior of the cache write queue. This option is used to tune controller performance for video applications. The valid values are 2, 4, 8, 16, 32, or Automatic.
Physical Drive Request Elevator Sort	Controls the behavior of the controller cache write Elevator sort algorithm. This option is used to tune controller performance for video applications. The possible options are Enable or Disable.
Degraded Mode Performance Optimization	It applies to RAID 5/RAID 50/RAID 6/RAID 60 logical devices in degraded mode only. Enabling this setting directs the controller to attempt to improve performance of large read requests by buffering physical drive requests. Disabling this feature forces the controller to read from the same drives multiple times. This option is used to tune controller performance for video applications. The possible options are Enable or Disable.
HDD Flexible Latency Optimization	Latency describes Flexible Latency Schedule (FLS) setting. Flexible Latency Scheduler (FLS) is a controller option where the controller can re-prioritize I/O requests to prevent some requests to HDDs from timing out. Under normal operation (when FLS is disabled, or in controllers that don\u2019t support FLS), the controller will sort incoming requests in order to minimize the amount of travel for the HDD\u2019s read heads (Elevator Sort). This strategy works well for workloads that access sequential data, or workloads that require multiple requests from localized sectors in the drive. For highly random workloads, such as transaction processing, some requests will end up on the wrong side of the disk platter and, due to their high latency, will be marked as timed out. When FLS is enabled, it will detect these high-latency requests and apply a cutoff value, after which it will suspend elevator sorting and service the request right away.
Primary Boot Volume	Describes which logical device or physical device is the primary boot volume on the current controller.
Secondary Boot Volume	Describes which logical device or physical device is the secondary boot volume on the current controller.
Sanitize Lock	Set the sanitize lock policy of the controller. This policy will be applied to all SATA physical devices that support the feature. None : No freeze lock or anti-freeze lock commands are sent to any physical device. Freeze : Supported physical devices are freeze locked and sanitize is not allowed. Anti-Freeze : Supported physical devices are anti-freeze locked and freezing the physical devices is not allowed.
Pending Sanitize Lock	Sanitize lock is in pending state, reboot the system and require all physical devices to be power cycled or hot-plugged for the lock state to be applied to the physical devices.
Expander Minimum Scan Duration	Controller waits for the specified seconds to scans/discover the drives attached to the expander on the next power cycle. Set this to a non-zero value if some devices do not appear in the topology after controller boot or rescan requests.
PCIe Maximum Read Request Size	Allows optimization of data flow for the purpose of improving the controller performance. This option is used to change the PCIe Maximum Read Request Size value on the Adaptec Smart Storage Controller. The PCIe Maximum Read Request Size takes one of the following values: 128, 256, 512, 1024, 2048 Bytes. By default, the value of Maximum Read Request Size is set to Default value which depends on the controller (128 \| 256 \| 512 \| 1024 \| 2048 bytes). The system must be restarted for the PCIe maximum read request size to take effect.
PCIe Maximum Payload Size	It is the maximum size of PCIe payload for one transfer. The PCIe Maximum Payload Size takes the values as 128 \| 256 \| 512 Bytes and is displayed under Properties tab of controller. Note: The value of PCIe Maximum Payload Size cannot be changed from the maxView GUI.
Persistent Event Log Policy	Persistent Event Log Policy can be either Oldest (Least Recently Consumed) or Newest (Most Recently Occurred). The maximum number of events that can be stored by firmware at any point is 300. When the policy is “Least Recently Consumed”, the maximum unconsumed events in NVRAM are 300. After that, the controller stops adding new events to the persistent log in NVRAM. When the policy is “Most Recently Occurred”, firmware continues to log a new event when it occurs in the NVRAM. The consumer is provided with the most recent events up to 300 events.
UEFI Health Reporting Mode	Allows the user to change whether to report UEFI driver health error messages on boot screen and halt the boot process or not. The UEFI Health Reporting Mode can be either “Enabled” or “Disabled”. The default mode is “Enabled”, which reports all the UEFI driver health error messages on the boot screen and halts the boot process. The “Disabled” mode does not report any UEFI driver health error messages on the boot screen and continues the booting regardless of the errors.
Intelligent Power Management
Current Power Mode	Determines controller static settings based on work load. MAXIMUM PERFORMANCE : Set static settings to highest possible. Do not reduce dynamically.
Pending Power Mode	Determines controller static settings based on work load before system reboot. MAXIMUM PERFORMANCE : Set static settings to highest possible. Do not reduce dynamically.
Survival Mode	Enabling survival mode allows the controller to throttle back dynamic power settings to their minimums when temperatures exceed the warning threshold. This allows the server to continue running in more situations, but performance may decrease.
Spindown Spares Policy	Inactive spares can be spun down to achieve power efficiency gain. Enabling the Spindown Spares Policy will spin down the inactive spares. Disabling the Spindown Spares Policy will not spin down the inactive spares. Note: Spindown Spares Policy is supported only in RAID and Mixed Mode
Controller Cache
Cache Status	Determines the preservation status of the cache module.
Cache Ratio	The controller cache ratio setting determines the controller ability to adjust the amount of memory for read-ahead cache versus write cache.
Write Cache Bypass Threshold (KB)	All writes larger than the specified value will bypass the write cache and be written directly to the disk for non-parity RAID volumes. The valid threshold size is between 16 KB and 1040 KB and the value must be a multiple of 16 KB.
No-Battery Write Cache	Allows the controller to enable write cache when no battery is present or when the battery fails. Values are Enable or Disable. Enabling No-Battery Write Cache can result in data loss if the server loses power and there is no battery present or the battery has failed.
Wait for Cache Room	Causes the controller to always wait for room in the read/write cache when full instead of automatically bypassing it in favor of higher performance.
maxCache
Status	maxCache support status on controller.
Version	maxCache version
Drive Cache
Write Cache Policy for Configured Drives	Allows to configure the write cache policy on a controller. Setting to default allows the controller to optimize the drive write cache policy of those drives. Enabling drive write cache can increase write performance but risks losing the data in the cache on sudden power loss. Setting the policy to “unchanged” means that the controller will make no changes to the drive’s default power-on write cache policy.
Write Cache Policy for Unconfigured Drives	Allows to configure the write cache policy on a controller. Setting to default for unconfigured drives uses the drive's existing write cache policy. Enabling drive write cache can increase write performance but risks losing the data in the cache on sudden power loss.
Write Cache Policy for HBA Drives	Allows to configure the write cache policy on a controller. Setting to default uses the drive's existing write cache policy. Enabling drive write cache can increase write performance but risks losing the data in the cache on sudden power loss.
Green Backup Unit
Backup Power Status	Status of backup power unit.
Battery/Capacitor Pack Count	Number of backup power units connected to controller.
Hardware Error	Hardware error type occurred on backup power unit.
Power Type	Type of the green backup unit.
Current Temperature	Current temperature in degrees Celsius of the backup power pack.
Maximum Temperature	Maximum temperature in degrees Celsius recorded during the product life.
Threshold Temperature	Maximum allowable temperature in degrees Celsius for the backup power pack. At this temperature, the green backup subsystem will shut down.
Voltage	Current voltage in millivolts of the backup power pack.
Maximum Voltage	Maximum backup power voltage in millivolts recorded during the lifetime of the product.
Current	Active current draw in milliamps of the backup power charging circuit.
Health Status	Predicted health of the backup power pack expressed as a percentage of Capacitance/Initial Capacitance. Initial Capacitance is estimated until a learning cycle occurs.
Relative Charge	Percentage of available energy expressed as a percentage of Capacitance * (Voltage-Vmin)/(Vcharging-Vmin)

Table 23-2. Array Display Properties
Property	Tooltip Details
ID	ID describes unique array identifier within the controller.
Name	Name describes unique name of array
Status	Status of array is based on health of member disk drives.
Device Type	Type describes the type of the array such as data array, backup array, and so on.
Interface Type	Disk drives which are the member of array can have interface type such SAS, SATA, SAS SSD and SATA SSD. The interface type of array is based on the member disk drives interface type.
Total Size	Total usable size is the total space available in the array for creating logical device.
Used Size	The total disk space used by the logical device(s) on the given array.
Unused Size	Unused size is the free space available to create new logical device to store the data.
Member Device(s) Block Size	Block size indicates the maximum size of data block on disk drives which are member of array (can be 512 Bytes or 4K).
Array Has Gaps	Indicates the presence of non-contiguous free space in between or starting of the array.
Largest Contiguous Free Space Size	Represents the maximum size of a single free block available for creating logical device or for size expansion.
Status	Status of array based on the state of its member physical device(s).
Transformation Status	Transformation status indicates whether the array is transforming or not.
Protected by Hot Spare	Protected by Hot Spare indicates whether the array is protected by Hot Spare.
Spare Rebuild Mode	Spare rebuild mode describes the spare type for the array. It can be "dedicated" or "auto replace" if the array is valid.
SSD I/O Bypass	SSD I/O Bypass enables an optimized data path to high performance solid state drives. The optimized path bypasses the controllers RAID processing components and sends I/O directly to the drives.
SED Encryption	Indicate whether the array is encrypted or not using SED based encryption.
Member Logical Device(s)	Number of logical device(s) present in the array.
Member Physical Device(s)	Number of physical device(s) used to create the array.
Spare Drive(s)	Number of spare drives associated to this array. If a drive fails in the array, the controller automatically rebuilds the data onto the spare drive.

Note: At the array level, Array Has Gaps and Largest Contiguous Free Space Size properties are displayed only for few controllers.

Table 23-3. Logical Device Display Properties
Property	Tooltip Details
ID	Describes unique ID of logical device listed.
RAID Level	RAID level on which the logical device has been created.
Device Type	Drive type indicates the type of logical device like data and etc.
Interface Type	Disk drive which are RAID member of logical device can have interface type such SAS or SATA will also reflect as interface type of logical device. A logical drive can be combination of SAS and SATA interface.
Data Space	Data space is where actual data is striped across the disk drives.
Stripe Size	Stripe size is the amount of data (in KB) written to one disk drive, before moving to the next disk drive in the logical device. Stripe size options vary, depending on your controller and RAID level.
Full Stripe Size	Full stripe size refers to the combined size of all the strips across all physical drives, excluding parity-only drives.
Member Device(s) Block Size	Maximum size of data block on disk drives which are RAID member of logical device (can be 512 Bytes or 4K).
Volume Unique Identifier	The logical device unique identifier.
Heads	Heads indicates the pre-defined space set aside for RAID redundant information on a logical device.
Sectors Per Track	Sectors Per Track specifies the number of sectors that are to comprise each track.
Cylinders	Cylinders indicates the set of all of tracks of equal diameter in a logical device.
Status	Status of logical device based on the state of its RAID members.
Name	Logical device name can be of maximum 64 characters and it should contain only ASCII characters Note: Duplicate logical device names are not allowed.
Disk Name	Name of the logical disk drive
OS Location	Operating system location of the logical disk drive
Mounted	Mount points describes the Operating system device names of the logical device.
Controller Caching	This option toggles the controller cache preservation state. When enabled, the system preserves the controller's cache to prevent data loss in the event of a system failures like power loss or shutdown
Acceleration Method	Logical Device Acceleration Method indicates whether caching for logical device enabled through controller cache. Defaults to enable.
Boot Type	A bootable logical device is a logical device that the system can attempt to boot from after a system power-on. A controller can have up to two bootable logical device, where one is a primary boot logical device and the other a secondary boot logical device. When the system looks at a controller for a boot logical device, it will first attempt to boot from a primary boot logical device, and if that fails, then it will attempt to boot from a secondary boot logical device.
Protected by Hot Spare	Protected by Hot Spare indicates whether the logical device is protected by Hot Spare.
Consistency Check Status	Indicates whether the consistency check is currently running on the logical device or not.
Last Consistency Check Completion Time	Indicates when the last consistency check was completed on the logical device.
Last Consistency Check Duration	Indicates how long it took to complete the last consistency check on the logical device.
maxCrypto
Encrypted	Indicate whether the logical device is encrypted or not.
Volatile Key	When volatile key is enabled for encrypted logical device, data keys are stored in volatile memory instead of disk. This provides stronger data protection, but it can also cause the data to be inaccessible during power loss.
Volatile Key With Backup	For remote key management mode, the data key will be backed up to remote key manager when enabling volatile key. You have an option to restore the key from the remote key manager.
SED Encryption	Indicate whether the logical device is encrypted or not using SED based encryption.
maxCache
State	State of the associated maxCache logical device.
Write Cache Policy	The current write cache policy used by the associated maxCache for data write operations. This will indicate whether the posted write operations to this logical device, are transferred via the write cache memory.
Write Cache Policy Preferred	The write cache policy preferred for data write operations to this logical device.
Write Cache Policy Status	The status of current write cache policy used by the associated maxCache.

Note: At the array level, Array Has Gaps and Largest Contiguous Free Space Size properties are displayed only for few controllers.

Table 23-4. Physical Device Display Properties
Property	Tooltip Details
Vendor	Vendor that manufactures the physical device.
Model	Model name by which the manufacturer refers the physical device.
Serial Number	Unique identifier allocated by the manufacturer to the physical device.
Interface Type	Interface Type indicates the drive interface standard such as SATA SAS or NVMe which affects compatibility of the drive, data transfer speed which determines how fast the data is read and written and RAID feature support including hot-swapping error recovery and performance improvements in RAID configurations.
Total Size	Maximum storage capacity of the physical device.
Logical/Physical Block Size	Logical block size is the maximum size of data block on disk drives which are RAID member of logical device (can be 512 Bytes or 4K). Physical block size is the actual block size on the physical device. Misalignment between them causes extra read/write operations, reducing performance and device lifespan. Aligning these sizes improves efficiency, performance and durability.
Rotational Speed	Rotational Speed indicates how fast the disk inside a hard drive spins, measured in Revolutions Per Minute (RPM). Faster speeds improve read/write times and overall performance but may increase power consumption and heat. This metric is important for understanding mechanical drive capabilities compared to solid-state drives.
Device Type	Type of physical storage device such as Hard Disk Drive that uses spinning disks, Solid State Drive that uses electronic chips for faster access, or Shingled Magnetic Recording drive that stores data with overlapping tracks. The device type determines how data is stored and managed, the speed of access and overall reliability.
Firmware Level	Firmware level refers to the version of the internal software programmed by the manufacturer that runs on the drive’s hardware. It manages how the drive reads, writes, organizes data, handles errors and communicates with other devices. Firmware directly influences the drive’s performance, reliability, features and compatibility. Keeping firmware updated can fix bugs, enhance functionality and improve overall drive stability.
WWN	World Wide Name (WWN) is a unique identifier of the physical device.
Unique ID	Distinct identifier assigned to the physical device for precise identification.
Reported Channel	Reported Channel of a drive is the physical port or channel on the controller where the drive is connected. The controllers have multiple channels or ports, and each can support one or more drives depending on the design and structure of the controller hardware.
Reported Device ID	A specific identifier assigned by the controller’s firmware to represent a physical drive within the controller’s operational context, including its connected ports and device topology. The ID helps the controller, and its driver to accurately identify, monitor and manage the physical drive during configuration, status updates and troubleshooting.
NCQ Supported	Native Command Queuing (NCQ) is a feature that allows a hard drive to optimize the order of read and write commands for improved performance and efficiency. When supported, the drive can process multiple commands simultaneously and reorder them to reduce unnecessary movement of the read/write mechanism, resulting in faster data access and improved overall throughput.
NCQ Status	NCQ Status indicates whether NCQ is currently enabled or disabled on the drive. When enabled, NCQ allows the drive to reorder and optimize pending commands for better performance and efficiency.
Sanitize Erase	Secure Erase is a secure data deletion process that permanently removes all data from the storage device by overwriting or destroying the data at the hardware level, ensuring that the information cannot be recovered. This method is often used to safely retire or repurpose drives.
Sanitize Lock Freeze	Sanitize Lock Freeze is a security feature that temporarily locks the sanitize command, preventing any sanitize operations from being executed until the device is reset. This measure helps prevent accidental or unauthorized data deletion erasure during normal use.
Sanitize Lock Anti-Freeze	Sanitize Lock Anti Freeze is a security mechanism that prevents the sanitize lock from becoming permanently locked, ensuring that the device can still be securely sanitized when needed. This feature helps maintain the ability to perform secure erase operations without being blocked by a locked state.
Encryption Capability	Encryption Capability indicates whether the storage device supports data encryption to protect sensitive information. When enabled, encryption helps secure data by encoding it, making it accessible only to authorized users with the correct decryption key.
State	Current operational status of a physical drive.
Negotiated Transfer Speed	It is the actual rate at which data is transmitted between the physical device and the controller..
Configuration Type	Identifies the designation of the physical drive within the storage system which determines how the drive is integrated and utilized, whether as a member of a logical device or as a standalone resource. Common configuration types include Data, Cache, Spare, HBA, Unassigned, In Transit, Unsupported for RAID or Unknown.
SED Security Status	SED Security Status is the current cryptographic security state of a Self-Encrypting Drive (SED), such as whether the drive is locked, unlocked or undergoing a crypto-erase operation. It reflects whether data on the drive is protected, accessible or being securely erased.
SED Qualification Status	SED Qualification Status indicates whether the SED hardware and firmware have successfully passed the required security and performance certifications or tests. This status ensures the drive complies with organizational or regulatory standards for data security and device functionality.
Original Factory State (OFS)	Original Factory State (OFS) refers to the device’s initial configuration and condition as provided by the manufacturer. This state can be restored to wipe user data or reset configuration settings, ensuring the device returns to a known good configuration.
SED Ownership Status	SED Ownership Status shows who currently controls or “owns” the Self-Encrypting Drive, often distinguishing between an end user, system administrator or a reset state. Ownership affects access rights, ability to modify security settings and management of encryption keys.
Foreign Key Identifier	Foreign Key Identifier is a unique identifier used when a device, such as a storage drive, is discovered in a “foreign” state. It means that it currently holds metadata or encryption keys from a different system or controller. This helps systems track device origin and manage security or compatibility.
Foreign Reset Key Identifier	Foreign Reset Key Identifier is a security key or authorization token required to clear or reset the foreign state of a device. This key allows the drive to be reinitialized, removing previous associations so it can be securely adopted by a new system.
Boot Type	Boot Type specifies the method the system uses to start up, such as Legacy BIOS or UEFI, which determines how the firmware initializes hardware and loads the operating system.
Exposed to OS	Exposed to OS indicates that the physical device or resource is made visible and accessible to the operating system, allowing it to detect, enumerate, load drivers and directly manage the physical device through standardized interfaces and protocols.
Disk Name	The disk name is a unique identifier assigned to a physical device by the operating system, used to distinguish it from other disks in the system. Disk names are typically generated automatically and follow specific naming conventions depending on the OS. It helps users and system processes to identify, manage and access the physical device.
OS Location	OS Location indicates where the operating system is installed or resides on the storage device, such as a specific partition or drive.
Partitioned	Partitioned refers to dividing a physical storage device into logical sections called partitions, allowing the OS to manage each independently. Only after partitioning can a device be formatted and used for data storage. Partitioning enables multiple OS installations, better data organization, and improved disk management. Without partitioning, the device cannot be used for standard file operations.
Write Cache	Write Cache is volatile memory that temporarily holds data to speed up writes. Write-back acknowledges data after caching but risks loss on power failure. Write-through writes data to both cache and disk before acknowledgment for safety. When disabled it turns off caching or writing all data directly to drive.
Mounted	Mounted indicates whether the storage device or partition is currently connected and accessible by the operating system for reading and writing data.
Has Stale RIS Data	Has Stale RIS Data indicates that the storage device contains outdated or invalid Remote Instant Secure (RIS) data. Stale RIS data interferes with remote management, recovery or provisioning tasks, potentially causing delays or failures in system updates and secure communications. Regular refresh or clearing of this data might be required to ensure proper operation.
S.M.A.R.T. Error	Any SMART error reported on physical device.
Current Temperature	Current temperature indicates the physical device’s temperature at present, providing important information to monitor its operating condition and performance.
Maximum Temperature	Maximum temperature indicates the highest temperature reached by the physical device over a specific period, helping to ensure it operates within safe limits and prevents overheating.
Threshold Temperature	Threshold Temperature refers to the predefined temperature limit at which specific actions or alerts are triggered to protect the physical device from damage due to overheating or other thermal issues. It maintains safe operating conditions and ensure reliable performance.
Encrypted Drive	Indicates whether this physical device is a part of any encrypted logical device.
Physical Link Rate	Physical Link Rate is the actual data transmission speed between a device and adapter, measured in gigabits per second. It depends on the device and controller capabilities, cable quality and negotiated connection speed. Changes in this rate can signal issues like cable faults or hardware limits. Monitoring it helps verify performance, troubleshoot problems and optimize system efficiency.
Logical Link Rate	Logical Link Rate is the actual data transfer speed between the storage controller and host OS after accounting for protocol overhead and error correction. It is lower than the Physical Link Rate and reflects usable bandwidth. Monitoring it helps assess performance, identify bottlenecks and optimize storage efficiency.
Maximum Link Rate	Maximum Link Rate is the highest data transfer speed supported by the connection between the device and controller, measured in gigabits per second. It sets the upper bandwidth limit, though actual speeds may be lower due to cable quality, device capabilities and overhead. Monitoring it helps verify performance and identify physical device limits.
Last Failure Reason	Last Failure Reason provides the specific cause associated with the most recent failure event detected by the device. This information helps users understand what went wrong and enables targeted troubleshooting or preventative maintenance.
Multi Actuator Drive	Multi Actuator Drive indicates whether the physical drive has multiple independent actuators, allowing it to read and write data from different areas of the disk simultaneously for improved performance.
Multi Actuator LUN Count	Specifies number of LUN's in the multi actuator drive.
Multi Actuator LUN ID	ID of the current LUN in the multi actuator drive.