see - access bytes in the HP SCSI disk array controller EEPROM
see -d special
see -b byte_number -h hex_byte device_file
see displays, or changes bytes in the controller EEPROM of the HP SCSI
disk array associated with device file device_file. A 64-byte area in
the EEPROM is accessible to the user. Although the command is
directed to a single LUN, the EEPROM settings affect all the LUNs of
-d Display only. Displays the current values of the
bytes in the accessible portion of the EEPROM.
-b byte_number -v hex_byte
Loads the hexadecimal value hex_byte into the
decimal byte byte_number of the user accessible
64-byte region in the EEPROM.
The following list of user accessible bytes in the EEPROM, and their
default values is provided for informational purposes only. Changing
the values can result in "incorrect" controller behavior with respect
to HP SCSI disk array utilities, and other support software. See
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| byte meaning C2425/7 value C2430 value |
| 0 enable synchronous negotiation 0x00 0x00 |
| 1 enable wide negotiation 0x00 0x00 |
| 2 spin-up algorithm 0x01 0x01 |
| 3 spin-up delay 0x32 0x1e |
| 4 ready timeout 0x0a 0x17 |
| 5 host command delay at power on 0x00 0x00 |
| 6 firmware drive cmd timeout value 0x64 0x64 |
| 7 default RAID level 0x00 0x05 |
| 8 option control bits MSB 0x00 0x00 |
| 9 option control bits LSB 0x27 0x53 |
| 10 sense key for drive failures 0x06 0x06 |
| 11 inquiry data byte 7 0x12 0x32 |
| 12 ROM sequence control bits 0x01 0x01 |
| 13 synchronization control bits 0x02 0x02 |
| 14 inquiry revision level format 0x00 0x00 |
| 15 diagnostic self-test options 0x01 0x01 |
| 16 host command delay for bus reset 0x00 0x00 |
| 17 inquiry unconfigured device type 0x20 0x20 |
| 18 software command timeout value 0x14 0x14 |
| 19 software command timeout actions 0x07 0x07 |
| 20 drive bus reset to ready wait 0x08 0x08 |
| 21 host delay after data phase 0x00 0x00 |
| 22 drive scan disabled channel (MSB) 0x00 0x00 |
| 23 drive scan disabled channel (LSB) 0x00 0x00 |
| 24 time to asynchronous event 0x00 0x00 |
| 25 fan polling interval 0x00 0x00 |
| 26 power supply polling interval 0x00 0x00 |
| 27 reserved 0x00 0x00 |
| 28 Error Reporting Options (MSB) 0x01 0x01 |
| 29 Error Reporting Options (LSB) 0x00 0x00 |
|30-63 reserved 0x00 0x00 |
see returns the following values:
0 Successful completion.
-1 Command failed (an error occurred).
DIAGNOSTICS AND ERRORS
Errors can originate from problems with:
+ SCSI (device level) communications
+ system calls
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Error messages generated by see:
usage: see <<<<-d | -b <<<<byteno>>>> -v <<<<hex byte>>>>>>>> <<<<special>>>>
An error in command syntax has occurred. Re-enter command with
the required arguments, in the order shown.
see: Arg out of range
One of the arguments has exceeded its maximum or minimum size, or
is incorrect in form. Check the size and form of each argument.
see: device busy
To ensure that see does not modify a disk array that is being
used by another process, see attempts to obtain exclusive access
to the disk array. If the disk array is already opened by
another process (for example, LVM - the Logical Volume Manager),
a ``device busy'' error message is returned by the driver. To
eliminate the ``device busy'' condition, determine what process
has the device open. In the case of LVM, it is necessary to
deactivate the volume group containing the array before
configuring the array (see vgchange(1M)).
see: LUN # too big
The LUN number, which is derived from the device special file
name, is out of range.
see: LUN does not exist
The addressed LUN is not configured, and thus is not known to the
see: Not a raw file
Utilities must be able to open the device file for raw access.
see: Not an HP SCSI disk array
The device being addressed is not an HP SCSI disk array.
see: Transfer length error
The amount of data actually sent to or received from the device
was not the expected amount.
SCSI (device level) communication errors:
Sense data associated with the failed operation is printed.
Error messages generated by system calls:
see uses the following system calls:
stat(), open(), close(), read(), write(), and ioctl().
Documentation for these HP-UX system calls contains information about
the specific error conditions associated with each call. see does not
alter the value of errno. The interpretation of errno for printing
purposes is performed by the system utility strerror().
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To display the values of the accessible EEPROM bytes on HP SCSI disk
array /dev/rdsk/c2t6d0 on a Series 700:
see -d /dev/rdsk/c2t6d0
Changing the values of EEPROM bytes can result in incorrect controller
behavior with respect to utilities and support software that may not
be immediately obvious. Also, the EEPROM can only be written to a
finite number of times, and if its write count is exceeded, it must be
The HP C2425 and HP C2427 disk arrays are only supported on Series 700
systems running HP-UX version 9.0X.
The HP C2430 disk array is supported on Series 700 and 800 systems
running HP-UX versions 9.0X and 10.0X.
see was developed by HP.
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