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Full Discussion: /dev/rmt devices are missing
Operating Systems AIX /dev/rmt devices are missing Post 302569909 by zaxxon on Wednesday 2nd of November 2011 03:27:32 AM
Old 11-02-2011
Did cfgmgr complain when being run? Did that DLPAR-action ie. assigning the controller with the attached tape drive to the LPAR show any complaints either?

Can you identify the SCSI controller with the tape drive using lsdev? Is lsdev showing any other type of tape drive but rmt that can be brought into relation to the SCSI controller (that you might have identified)?

Example:
Code:
root@bla1:/root> lsdev -Ccadapter -l *scsi*
sisscsia0 Available 04-08 PCI-X Dual Channel Ultra320 SCSI Adapter
root@bla1:/root> lsdev -Cctape
rmt0 Available 04-08-00-0,0 LVD SCSI 4mm Tape Drive

You can only assign it, if it is on a separate SCSI controller which is not assigned to other LPARs. But if that was not the case, I assumed the HMC might have complained about it.
 

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mptutil(1M)															       mptutil(1M)

NAME
mptutil - Diagnostic utility for Ultra320 SCSI controllers and A7173A PCI-X Dual channel Host Bus Adapters SYNOPSIS
[options] <device_file> DESCRIPTION
The command is a diagnostic tool to be used for Ultra320 SCSI controllers claimed by the MPT driver. This command provides the ability to retrieve various configuration information, perform firmware downloads, issue Task Management commands and read accumulated statistics of the controller and connected target devices. The utility can be used with various options with a specified device file. Each device file represents only a single channel on the SCSI controller. Therefore, commands issued through this utility are channel specific and do not affect the whole adapter (except firmware download). Prerequisites: You must be a privileged user in order to run the command. See privileges(5) for more information on privileged users. In addition, some of the options are intended for use by HP support personnel and require detailed knowledge of the Ultra320 SCSI driver or firmware to interpret the output. OPTIONS recognizes the following options. All keywords are case-sensitive and are position dependent. <device_file> where specifies the MPT device file associated with one channel of the Ultra320 SCSI controller. The device files are created at boot time or during Online Addition of an adapter. They have the name /dev/mptX, where X is the instance number of the SCSI channel, as reported by for the MPT driver and the When used without any options it provides information such as the Driver and Firmware version, Vendor ID, Device ID, Adapter NVRAM size, Vital Product Data (VPD) along with the driver's current state. The following driver states are defined: This state indicates that the hardware has not been initialized by the driver. This state could result if the driver was unable to successfully initialize the channel. This state indicates that the controller initialization is complete. Driver is in the process of retrieving/setting various configuration parameters. This state indicates that driver is online and ready to perform normal SCSI I/O operation. This state indicates that driver is currently performing Task Management commands such SCSI BUS RESET, ABORT TASK, BUS DEVICE RESET etc. This state indicates that driver has detected a controller fault and is currently recovering from that condition. This state indicates that controller has been suspended by the user. This option is used to display the PCI Configuration data stored on the card. Information is displayed as hexadecimal data. This option is used to download the MPT SCSI firmware onto the SCSI controller that has an associated Flash ROM. The controller is specified by the argument. WARNING: This is a DESTRUCTIVE operation. Active I/Os will be aborted. Should be used by qualified personnel only. This option is used to perform Task Management commands. The option specifies the command type. Two types of Task Management commands are currently supported. Perform a Bus Device Reset on the device specified by the Perform a SCSI Bus Reset. This will reset all the devices on the SCSI bus. WARNING: This is a DESTRUCTIVE operation. Active I/Os will be aborted. Should be used by qualified personnel only. This option is used to upload the currently running firmware image to file specified by the Clear Driver and Device Statistics Display Driver and Device Statistics Dump the driver trace information onto the console. Display Port Facts Information. The data is displayed as a series of hexadecimal words. EXAMPLES
These examples show an Ultra320 SCSI controller that is associated with a SCSI bus with instance number 5. Display VPD and other general information stored on the controller Download Firmware to the controller Display driver and device statistics Perform a device reset represented by connected to the controller AUTHOR
was developed by HP. FILES
Executable file. Device files. SEE ALSO
mptconfig(1M), ioscan(1M), scsictl(1M), privileges(5) mptutil(1M)
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