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тАО05-27-2003 10:39 AM
тАО05-27-2003 10:39 AM
Simulating a failed disk
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тАО05-27-2003 10:51 AM
тАО05-27-2003 10:51 AM
Re: Simulating a failed disk
pvdisplay -v /dev/dsk/c#t#d#
make sure whats on it is what you expect. If its raid 5 striping, I'm not sure how relavent this is.
Then pull the disk out of the array.
I wouldn't do this except during a maintenance window.
So long as the OS is mirrored, you should be okay.
lvlnboot -v
should give you details so you want to pull a boot disk, which one to pull.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО05-27-2003 10:52 AM
тАО05-27-2003 10:52 AM
Re: Simulating a failed disk
pvdisplay -v /dev/dsk/c#t#d#
make sure whats on it is what you expect. If its raid 5 striping, I'm not sure how relavent this is.
Then pull the disk out of the array.
I wouldn't do this except during a maintenance window.
So long as the OS is mirrored, you should be okay.
lvlnboot -v
should give you details so you want to pull a boot disk, which one to pull.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО05-27-2003 10:59 AM
тАО05-27-2003 10:59 AM
Re: Simulating a failed disk
If the pulled disk is not part of any type of redundancy, the file system (of that disk) will hang and may result in system hangs and issues if it's an important file system.
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тАО05-27-2003 11:09 AM
тАО05-27-2003 11:09 AM
Re: Simulating a failed disk
I assume you mean a disk in the VA7110. The OS actually don't know anything about the physical disks in the array. The server only know "LUNs", logical disks, the array controller takes care about the physical disks. If you pull out a disk and then put it back the controller must rebuild the disk again, there may be a performance decrease when this process is running but you should not loose any data.
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тАО05-28-2003 02:32 AM
тАО05-28-2003 02:32 AM
Re: Simulating a failed disk
Whenever any disk is failed in VA the red LED will start flashing in the disk if it is not so & still you want to confirm it you can give this command
#armdsp -a va sr. no. or the alias
NOTE:If you dont know the VA sr. no. & alias name you can isue this command
#armdsp -i
this command will give the VA sr. no. & alias name if it is set.
Once you five armdsp -a command you can able to see all the disk status from that you can find out the faulty disk.
If you dont want to issue this command you can still run launcher command through Xterm & you can see the status of Disk & Array.
Hope this will help you.
Regards,
Rajesh G