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Disk Monitoring

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scott_417
Frequent Advisor

Disk Monitoring

For a server of 6 disks:

Disks 1 and 2 in Array One
Disks 3 to 5 in Array Two
Disk 6 online spare

For the system, it will "see" only 3 devices (Correct?).

1)If Disk 1 in Array One failed/crashed, how can I know it?

2)If Disk 3 in Array Two crahsed, how can I know it?

3)For Disk 6, since it is at the standby state, how can I know if it is at a good status or not (useable or non-useable)?

Thanks to help.

Scott
6 REPLIES
Prashant (I am Back)
Honored Contributor
Solution

Re: Disk Monitoring

Hi Scott,

You can use ACU for the same.
There you get the details on the same. there are different veiws that explain using physical and logical veiw.

Prashant S.
Nothing is impossible
scott_417
Frequent Advisor

Re: Disk Monitoring

Thanks for the response. So long I can monitor and detect which disk is OK and which disk is crashed. What I am trying to do is, for the above mentioned system, I'll include Disk 6 into the Array Two with RAID 5 implemented (use the ACU to do the configuration).

This will increase the total number of disks for Disk Array Two (i.e. now it will have Disks 3, 4, 5, and 6 in the array), hence the greater storage capacity.

Of course this will lead to NO online spare disk anymore. In the case that any disk is crashed, I'll have to manually do a swap with a new disk. (I kind of feel the online spare disk is a waste of storage resource. It does not sounds critical).

Please do share your comments and opinion for the above strategy.


Thanks to help.


Scott
Prashant (I am Back)
Honored Contributor

Re: Disk Monitoring

yes, if disk then it goes for manual process whereas, one more thing we can check with is global spare for both the array's. Where if you want to use the hdd with the new raid nothing can be done.
new thing was raid 5 with adg + online spare check that will help you or not

Prashant S

Nothing is impossible
scott_417
Frequent Advisor

Re: Disk Monitoring

Thanks for the response. If the system is initially configured as: Disks 3, 4 and 5 in Array Two, and Disk 6 is an online spare.

1) Later on, can I use the ACU to put the Disk 6 (the online apare disk) into Array Two so that Array Two will now contain Disks 3, 4, 5, and 6?

2) Can I do the above configuration online, or Must I do the it off line (i.e. take the server off the operation)?


Thanks to help.


Scott
Igor Karasik
Honored Contributor

Re: Disk Monitoring

Scott,
1) yes, you can put disk6 into array and do array expansion and array extension
2) You can do it online
I think this document will be useful:
Smart Array Controller technology: drive array expansion and extension
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00257511/c00257511.pdf
Prashant (I am Back)
Honored Contributor

Re: Disk Monitoring

possible
100% online process.
Nothing is impossible