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тАО11-03-2005 08:37 PM
тАО11-03-2005 08:37 PM
HP-UX command ioscan
Where HP-UX save the ouput of the command IOSCAN? Where i see the istance number?
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тАО11-03-2005 08:39 PM
тАО11-03-2005 08:39 PM
Re: HP-UX command ioscan
r u referring to the column I from the ioscan output:
# ioscan -fnC disk
regards.
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тАО11-03-2005 08:40 PM
тАО11-03-2005 08:40 PM
Re: HP-UX command ioscan
-Muthu
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тАО11-03-2005 08:43 PM
тАО11-03-2005 08:43 PM
Re: HP-UX command ioscan
There is no ioscan output saved on HP-UX.
The hardware structure is in the kernel and you could use the "-k" option to list the kernel tree.
# ioscan -fnkC disk
GOOD LUCK!!
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тАО11-03-2005 08:54 PM
тАО11-03-2005 08:54 PM
Re: HP-UX command ioscan
-Arun
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тАО11-03-2005 09:31 PM
тАО11-03-2005 09:31 PM
Re: HP-UX command ioscan
I believe what you are asking is:
How does HP-UX remember what instance number is assigned to what device?
If so, this is done using the /etc/ioconfig file which is NOT an ascii file in association with the ioinit command (run from /etc/inittab).
When the system boots, it scans the I/O tree, and compares what it finds with the contents of this file. If a new device is found, it assigns the next instance number to the device and records it in the ioconfig file.
man ioconfig
man ioinit
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тАО11-04-2005 12:49 AM
тАО11-04-2005 12:49 AM
Re: HP-UX command ioscan
I think Monaco's question is why does OS does not assign the free Instance no instead of just assigning next instance no to the newly added device.
for e.g.
i have devices with instance no 1,2,3,4 and 5.
Then i removed one device with instance no. 3 so now i have devices with instance n0. 1,2,4 and 5.
Now in this case if you add new device OS should assign 3 but it assigns 6. So why OS is not assigning 3 to the new device?
Monaco correct me if i am wrong.
Now if that is the question what i have seen is the same thing, OS keeps on incrementing the instance no and doesn't look back what all instance no are free from alloted pool.
Don't know the specific reason for the same.
Regards,
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тАО11-04-2005 01:13 AM
тАО11-04-2005 01:13 AM
Re: HP-UX command ioscan
Bill Hassell, sysadmin