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VA7410 few disks only seen by one controller

 
dave.s
Advisor

Re: VA7410 few disks only seen by one controller

Think we have identified that particular array as causing us problems before. Somehow it was not labeled as being suspect bad and was since re-connected back into another va configuration.

I am going to pull that 2405 out of the current config to get things back to a "stable" state. We have another unit that is not being used that I will re-add.

I will post back on the progress in case anyone else runs into similar problems in the future.

This is the first time I have removed an entire enclosure. Any feedback about this process?

- Delete newly created LUNS
- Down the drives in the enclosure
- Modify the security table and remove the associated LUNS
- Power off the 2405 and disconnected the fiber cables.
cnb
Honored Contributor

Re: VA7410 few disks only seen by one controller

Backups!

Might want to also check the array state (idle) to make sure no other major operations are in progress.

Verify the LCC Speed settings on the new DS2405 before connecting it up.

Some manuals that might help:
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/lpg60188/lpg60188.pdf

http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c00084782/c00084782.pdf

http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/lpg60195/lpg60195.pdf

Rgds,
dave.s
Advisor

Re: VA7410 few disks only seen by one controller

Very good information. Thanks for those links.

I did notice the following from a previously saved armdsp output. The loop id on the second controller is different from the first. Originally I ignored this but I noticed in the first enclosure the loop id's are the same. I am currently researching.

Controller At JA0/C1:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________0
Drive Address Basis:__________________0
Enclosure ID:_________________________0
Loop Pair:____________________________0
Loop ID:______________________________15
Hard Address:_________________________15

Controller At JA0/C2:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________0
Drive Address Basis:__________________0
Enclosure ID:_________________________0
Loop Pair:____________________________0
Loop ID:______________________________15
Hard Address:_________________________15

Controller At JB2/C1:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________2
Drive Address Basis:__________________2
Enclosure ID:_________________________2
Loop Pair:____________________________1
Loop ID:______________________________47
Hard Address:_________________________47

Controller At JB2/C2:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________2
Drive Address Basis:__________________2
Enclosure ID:_________________________2
Loop Pair:____________________________1
Loop ID:______________________________31
Hard Address:_________________________47
cnb
Honored Contributor

Re: VA7410 few disks only seen by one controller

Dave,

FWIW:

Just checked some of the ones here and they s/b configured like this:

Controller At JA0/C1:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________0
Drive Address Basis:__________________0
Enclosure ID:_________________________0
Loop Pair:____________________________0
Loop ID:______________________________15
Hard Address:_________________________15

Controller At JA0/C2:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________0
Drive Address Basis:__________________0
Enclosure ID:_________________________0
Loop Pair:____________________________0
Loop ID:______________________________15
Hard Address:_________________________15

Controller At JB1/C1:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________1
Drive Address Basis:__________________1
Enclosure ID:_________________________1
Loop Pair:____________________________1
Loop ID:______________________________31
Hard Address:_________________________31

Controller At JB1/C2:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________1
Drive Address Basis:__________________1
Enclosure ID:_________________________1
Loop Pair:____________________________1
Loop ID:______________________________31
Hard Address:_________________________31

Controller At JB2/C1:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________2
Drive Address Basis:__________________2
Enclosure ID:_________________________2
Loop Pair:____________________________1
Loop ID:______________________________47
Hard Address:_________________________47

Controller At JB2/C2:
Status:_______________________________Good
Serial Number:________________________
Vendor ID:____________________________HP
Product ID:___________________________A6255A
Product Revision:_____________________HP05
Controller Type:______________________HP StorageWorks Disk System DS2405
Enclosure Switch Setting:_____________2
Drive Address Basis:__________________2
Enclosure ID:_________________________2
Loop Pair:____________________________1
Loop ID:______________________________47
Hard Address:_________________________47
dave.s
Advisor

Re: VA7410 few disks only seen by one controller

This was found to be a bad fiber cable. After replacing the cable ( next step before giving up and replacing unit ) the sporadic dis-appear and re-appear of drives on that controller has stopped. It has been 3 days with no issues so closing out this thread. Thanks for the suggestions!
dave.s
Advisor

Re: VA7410 few disks only seen by one controller

bad fiber cable