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тАО12-02-2002 07:21 AM
тАО12-02-2002 07:21 AM
Since we cannot take this server down, it seems the only thing to do is wait for the drive to fail and then hot-swap it.
Or is there a way to remove that drive from the RAID array before it fails? Thanks!
Solved! Go to Solution.
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тАО12-02-2002 11:00 AM
тАО12-02-2002 11:00 AM
SolutionYou are right. Even though the drive has been marked as Pre-Failure, you still have to shut down the server to replace it. There is no way around this until the drive has failed.
To protect your data you might want to look at having an on-line spare for the RAID.
Mark
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тАО12-02-2002 12:25 PM
тАО12-02-2002 12:25 PM
Re: Predictive Failure - Actions to take?
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тАО12-03-2002 07:19 AM
тАО12-03-2002 07:19 AM
Re: Predictive Failure - Actions to take?
However, a couple of things to remember - first, ALWAYS have a backup of your data before you do this, and second, remember that during the rebuild, you do not have RAID protection until the rebuild is complete, For this reason, you may want to schedule the rebuild during off hours (also, the speed of the rebuild is dependent on how much regular disk I/O is occurring, so if there is little or no disk I/O, then the rebuild will complete faster).
This applies to Smart Array Controllers - if you have another type of controller, then it might not work the same way.
Thanks,
Doug
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тАО12-04-2002 06:44 AM
тАО12-04-2002 06:44 AM
Re: Predictive Failure - Actions to take?
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тАО12-04-2002 06:48 AM
тАО12-04-2002 06:48 AM
Re: Predictive Failure - Actions to take?
I called Compaq tech support and they said I may be getting a false alert. Uusually, the drive would fail within 24 hours of the "Predictive Failure" status message. There is a patch I need to add to prevent false alarms. However, since the patch also requires a reboot, it will have to wait until the next scheduled maintenance.
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тАО12-04-2002 07:02 AM
тАО12-04-2002 07:02 AM
Re: Predictive Failure - Actions to take?
If Insight Manager shows a drive to be in Pre-failure, the server has to be shut down and the drive can be removed/replaced. The Array Controller still sees the drive as a good working drive and will continue to access the drive. If you remove the drive when the Array controller is striping data to it then you might encounter corrupt data. Therefore if the light has NOT changed on the drive to show it as bad then shut down the Server to remove it.
Many many people do just remove it when Insight Manager repors it as Pre-failure. This could corrupt date or even the RAID set.
Does this explaination help?
Mark
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тАО12-04-2002 07:14 AM
тАО12-04-2002 07:14 AM
Re: Predictive Failure - Actions to take?
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тАО12-04-2002 07:41 AM
тАО12-04-2002 07:41 AM
Re: Predictive Failure - Actions to take?
The on-line spare will wait for the drive to fail before it becomes active.
Mark
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тАО01-15-2003 02:13 PM
тАО01-15-2003 02:13 PM
Re: Predictive Failure - Actions to take?
As a matter of fact, we've done this on quite a few servers to replace 18GB7.2K drives with 36GB10K drives. After all drives had been replaced we wound up with lots of extra space on the array. We then either created extra partitions, spanned partions or resized partitions with Partition Magic (all require reboots, unfortunately)