Owner manual

Agent information 42
• Model—Displays a description of the physical drive. The text depends on the manufacturer of the drive and the
drive type.
If a drive fails, note the model to identify the type of drive necessary for replacement.
• Firmware Version—Displays the physical drive firmware version number. Make sure you have the most recent
version of the firmware because older versions may not support all of the newest features.
• Serial Number—Displays the serial number assigned to the physical drive. This value is based on the serial
number as returned by the SCSI inquiry command but may be modified due to space limitations. This item can
be used for identification purposes.
• Service Hours—Displays the current number of hours of service (the number of hours that a physical drive has
been spinning) since the drive was stamped. The drive was stamped when it left the factory.
For example, if the Current Service Hours value is 604, the drive has been operating for 604 hours. If an error
occurred at 499 Service Hours, it occurred after 499 hours of service.
• S.M.A.R.T. Support—Indicates whether or not the SCSI physical drive supports S.M.A.R.T. The possible values
are:
• Available—This drive supports predictive failure monitoring.
• Not available—Predictive failure monitoring is not available for this drive.
• Unknown—The Storage Agents cannot determine if the drive supports predictive failure monitoring. You
may need to upgrade your driver or Storage Agents.
NOTE: A value of Unknown indicates that the agents cannot determine this information from the
physical drive.
• Current Width—Displays the current negotiated data transfer width for a SCSI physical drive. The possible
values are:
• Narrow (8 bits)—The negotiated data transfer width for this drive is narrow (8 data bits).
• Wide (16 bits)—The negotiated data transfer width for this drive is wide (16 data bits).
• Unknown—The Storage Agents are unable to determine the current negotiated data transfer width for this
drive.
• Current Speed—D
isplays the current negotiated data transfer rate for a SCSI physical drive. The
possible values are:
• Asynchronous—The negotiated data transfer rate for this drive is asynchronous.
• Fast—The negotiated data transfer rate for this drive is 20 megabytes per second.
• Ultra—The negotiated data transfer rate for this drive is 40 megabytes per second.
• Ultra2—The negotiated data transfer rate for this drive is 80 megabytes per second.
• Ultra3—The negotiated data transfer rate for this drive is 160 megabytes per second.
• Ultra320—The negotiated data transfer rate for this device is 320 megabytes per second.
• Unknown—The agent is unable to determine the negotiated data transfer rate for this drive.
NOTE: If the negotiated data transfer width is Narrow (8 bits), the actual data transfer rate is equal
to half the negotiated data transfer rate. For example, if the current negotiated data transfer rate is
Ultra (40 megabytes per second) and the width is Narrow, then the actual data transfer rate is 20
megabytes per second.
• Placement—Indicates whether the physical drive is in an internal or external storage system. The following
values are valid:
• Internal—The physical drive is in an internal storage system.
• External—The physical drive is in an external storage system.
• Unknown—The physical drive is not in a storage system or the Storage Agents cannot determine the drive
placement.
This symbol indicates that the drive is a hot plug drive.
• Rotational Speed—Indicates the rotational speed of the drive in revolutions per minute.
• Drive Type—Indicates the type of physical drive. The following values are valid:
• SCSI—The physical drive is a parallel SCSI drive.
• SATA—The physical drive is a Serial ATA drive.
• SAS—The physical drive is a Serial attached SCSI drive.