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тАО05-30-2002 09:12 PM
тАО05-30-2002 09:12 PM
Controller battery failure
thanks in advance
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тАО05-31-2002 05:32 AM
тАО05-31-2002 05:32 AM
Re: Controller battery failure
Again change the 2 batteries, to known good, fully charged ones, and see if Battery 2 still fails. If so, get the ouptut of the logprint command for the arrayid and send it to your hp rc engineer.
There is a risk of data failure and performance is going to be poor because of disabled caching.
The data failure will come if there is a power fail or incorrect shutdown and you are using a strange controller map resiliancy.
Post up your arraydsp -a of the array.
Good luck,
Bill
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тАО06-11-2002 07:25 PM
тАО06-11-2002 07:25 PM
Re: Controller battery failure
regards
Viks
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тАО06-12-2002 02:09 AM
тАО06-12-2002 02:09 AM
Re: Controller battery failure
I'll look into your attachment in a minute, but just to reply to the failover case of the controller first..
The system should not go down on any failure in the autoraid, unless you have your boot disk/swap fs there.
BUT, certain filesystems on the autoraid are potentially at risk if you haven't configured LVM to respond correctly to "failed hardware"
ie,
Lets imaging you have the following configuration
Controller X SCSI ID 1
Controller Y SCSI ID 2
LUN0 LUN1
Controller X connected to host directly.
Controller Y connected to host directly (not the same bus as Controller X)
See diagram attached
Make sure that LVM has been configured for switchover, via vgdisplay All_VGs_on_12H and look for Alternate Paths to the luns, if you don't have an alternate path defined, there will be no switch over and your filesystems /vg on the 12H will go down brutally.
Bill
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тАО06-12-2002 02:18 AM
тАО06-12-2002 02:18 AM
Re: Controller battery failure
1 battery in controller X has for sure failed:
Battery #1 state = DEAD
Battery #2 is okay.
I'd swap position of the two batteried around just to verify that it is either the controller that is damaged or if it is the battery itself.
Run the same arraydsp command.
If you see
Battery #1 state = DEAD
Battery #2 state = GOOD
Then your controller has failed, or if you see
Battery #1 state = GOOD
Battery #2 state = DEAD
after swopping the X controller battery positions around then the Battery (and not the controller) is a dud.
I can't exactly recall which is battery #1 and #2, but recommend to change BOTH at the same time, (don't want a weaker battery that the other)
Try to get a thin pliers to remove/intert the battery connector, because you can a> hurt your fingers! and b> pull out wires from the battery connector.
On the brighter side, your array looks in good health,
(There is f/w upgrade available, however, I wouln't recomment upgrading just for the sake of it.)
Good luck,
Later,
Bill
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тАО06-12-2002 04:21 AM
тАО06-12-2002 04:21 AM
Re: Controller battery failure
Plus,read this:
http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x96b70bce6f33d6118fff0090279cd0f9,00.html
live free or die
harry
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тАО06-14-2002 03:39 AM
тАО06-14-2002 03:39 AM
Re: Controller battery failure
Later,
Bill
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тАО06-19-2002 12:12 AM
тАО06-19-2002 12:12 AM
Re: Controller battery failure
regards
Viks
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тАО06-19-2002 12:56 AM
тАО06-19-2002 12:56 AM
Re: Controller battery failure
The autoraid will never perform a true non-interupted failover. you will get application hangs, for the duration of the pvchange switchover, should be set to around 90secs for the autoraid.
However, if your applications behave well, pulling a controller will not cause a problem.
Changing the X and Y physical position will make no difference to the operation of the autoraid. Being in either slot X or Y has no bearing on the functionality of either controller.
You can pull the X controller and the array will run fine off the Y controller.. without moving it anywhere.
It will work fine in slot Y, once you have verified that the alternate links are good.
ie the Y controller will be used on X removal. There is nothing more that you need to do other than removing the failed controller.
(At least test that once you've identified it is certainly not a battery failure by swopping battery positions in the controller)
Later,
Bill