RAID 1 Synchronisation to be done at HP Server
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In theory, the Fake RAID should have indicator lights that show you which disk is having a problem.
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@scottalanmiller said:
t show you which disk is having a problem.
I need to make one of the hard disk as degraded for testing purpose and this has to done at Client place.There is one of the hard disk was not working.So the light for the hard disk only one.How to find the degraded hard disk
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Oh, there is likely no way to do that. Does the HP RAID documentation list a means of doing that? I don't know of any RAID system that has that feature.
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I googled for that but there is no option I found about this issue.The issue is that HP Proliant DL 160 G5 has two disk configured with RAID 1.The one hard disk of the server is not working and the RAID 1 has to made to be worked after replacing a new hard disk by taking the damaged hard disk.
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@Lakshmana said:
I googled for that but there is no option I found about this issue.The issue is that HP Proliant DL 160 G5 has two disk configured with RAID 1.The one hard disk of the server is not working and the RAID 1 has to made to be worked after replacing a new hard disk by taking the damaged hard disk.
So the issue is that the RAID is already degraded?
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@scottalanmiller Yes.RAID is already degraded in the server.So we are just started testing the same server for th e same issue
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@Lakshmana said:
@scottalanmiller Yes.RAID is already degraded in the server.So we are just started testing the same server for th e same issue
If it is degraded, you just need to pull out the drive and replace it with a good one. How do you know that it is degraded?
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@scottalanmiller That is the question I also don't know.How to identify the degraded hard disk in the server.The Client side person said that the one of the hard disk in the server is degraded in the server.So We are trying to identify the hard disk in the server and so only we are searching to get the details regarding this issue.
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Now I have added the one hard disk as Hot Spare for the RAID 1 and I need to synchronize the data in 3 rd hard disk which I configured the RAID1.How to Synchronize Data in the new hard disk?
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I just added new hard disk as hot spare and waited for 30 Minutes and after that I took the second hard disk connection out and made the server to boot the OS.It gave me error that raid device is degraded OS did not boot and after that I restarted the server.Then the server booted into the Windows Server 2008.How it is possible?
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@Lakshmana said:
I just added new hard disk as hot spare and waited for 30 Minutes and after that I took the second hard disk connection out and made the server to boot the OS.It gave me error that raid device is degraded OS did not boot and after that I restarted the server.Then the server booted into the Windows Server 2008.How it is possible?
Is this all for testing and learning or are you trying to fix an issue you are having?
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@lance Trying to fix an issue in Client company and we are trying to get an idea about how to do the things in the client place and also trying to sort out the issue in the server.Thats it we are doing to improve ourself.
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@Lakshmana said:
@lance Trying to fix an issue in Client company and we are trying to get an idea about how to do the things in the client place and also trying to sort out the issue in the server.Thats it we are doing to improve ourself.
Do you have a good backup of the data?
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@lance No.I dont have the backup of data but when I connected the hot spare disk the RAID 1 booted without error.My question is that how to find the degraded hard disk in the server?
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@Lakshmana said:
Now I have added the one hard disk as Hot Spare for the RAID 1 and I need to synchronize the data in 3 rd hard disk which I configured the RAID1.How to Synchronize Data in the new hard disk?
You've mentioned you added a disk to use as a hot spare, from what I found Fake Raid can't have hot spares and can't support hot swappable drives. Either way, this is a really unique situation, your time might be better spent getting a good backup of the data, getting new drives, setting up a more recommend RAID and restoring.
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How do you know the array is degraded? During the boot only? Or is there something in the OS telling you that?
If you are getting nothing more than a popup in Windows that tells you that it's degraded, then there is probably something in the Event Logs that tell you exactly what port is degraded.
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@Lakshmana said:
@lance No.I dont have the backup of data but when I connected the hot spare disk the RAID 1 booted without error.My question is that how to find the degraded hard disk in the server?
A hot spare is already connected at the time of failure. Do you mean a cold spare? And when you put in the cold spare, you didn't remove the failed disk first?
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@lance said:
@Lakshmana said:
Now I have added the one hard disk as Hot Spare for the RAID 1 and I need to synchronize the data in 3 rd hard disk which I configured the RAID1.How to Synchronize Data in the new hard disk?
You've mentioned you added a disk to use as a hot spare, from what I found Fake Raid can't have hot spares and can't support hot swappable drives. Either way, this is a really unique situation, your time might be better spent getting a good backup of the data, getting new drives, setting up a more recommend RAID and restoring.
Fake RAID has no limitation conceptually here. Under the hood Fake RAID is just software RAID and any RAID can support hot spares, hot swap and even blind swap although very few support the latter.
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@Lakshmana said:
I just added new hard disk as hot spare and waited for 30 Minutes and after that I took the second hard disk connection out and made the server to boot the OS.It gave me error that raid device is degraded OS did not boot and after that I restarted the server.Then the server booted into the Windows Server 2008.How it is possible?
Can you supply a screen shot of the error? Seeing the actual errors is likely to help us a lot.
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@scottalanmiller OK.I will give the screen shot tommorrow.I came out of my office.
