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тАО04-04-2006 08:34 AM
тАО04-04-2006 08:34 AM
hi all
I have a system with internal boot disk and external data disk arrays , suddenly its not booting , the user has to access it frequently , so i decided to replace the external disk arrays to the identical system
what steps i have to take to do it.
Thanks in Advance
I have a system with internal boot disk and external data disk arrays , suddenly its not booting , the user has to access it frequently , so i decided to replace the external disk arrays to the identical system
what steps i have to take to do it.
Thanks in Advance
Solved! Go to Solution.
3 REPLIES 3
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тАО04-04-2006 08:40 AM
тАО04-04-2006 08:40 AM
Re: boot failed
There is not enough data in your question as well as a big conflict. You are saying that the system is not booting with an internal boot drive but you are talking about replacing the external disks. I could not quite get the purpose of such activity.
Also, server model, "ioscan -fn" output could help for further assistance.
Also, server model, "ioscan -fn" output could help for further assistance.
________________________________
UNIX because I majored in cryptology...
UNIX because I majored in cryptology...
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тАО04-04-2006 08:43 AM
тАО04-04-2006 08:43 AM
Solution
Shalom,
It would help to know if they disks are scsi attached or fiber attached.
If they are fiber, the World Wide Name (WWN) needs to be assigned on the Fiber controller/array/whatever to the WWN of the Fiber card on the new machine.
If the system was working, I'd say vgexport the disk and then vgimport on the new system.
SCSI is a bit easer, you just move the scsi cable and run ioscan. You may need to boot the new system.
You should be able to use vgcfgrestore to read the lvm structure off the disk once attached to the new system and not destroy the data.
If data presercation is not an issue, attach, ioscan, vgcreate.
SEP
It would help to know if they disks are scsi attached or fiber attached.
If they are fiber, the World Wide Name (WWN) needs to be assigned on the Fiber controller/array/whatever to the WWN of the Fiber card on the new machine.
If the system was working, I'd say vgexport the disk and then vgimport on the new system.
SCSI is a bit easer, you just move the scsi cable and run ioscan. You may need to boot the new system.
You should be able to use vgcfgrestore to read the lvm structure off the disk once attached to the new system and not destroy the data.
If data presercation is not an issue, attach, ioscan, vgcreate.
SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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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тАО04-04-2006 08:44 AM
тАО04-04-2006 08:44 AM
Re: boot failed
Hi
I accept what Mel has mentioned, need more info on this
If the server is not booting you need try to boot from a recovery image tape and restore the OS
If the external disks have failed if they ae not mirrored then you have to get them replaced and restore the vg (if at all it is in a different vg) and restore data.
If there are mirror disks and are hot pluggable you can remove them and resync when it is replaced.
Rgds
HGN
I accept what Mel has mentioned, need more info on this
If the server is not booting you need try to boot from a recovery image tape and restore the OS
If the external disks have failed if they ae not mirrored then you have to get them replaced and restore the vg (if at all it is in a different vg) and restore data.
If there are mirror disks and are hot pluggable you can remove them and resync when it is replaced.
Rgds
HGN
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