Disk Monitoring

[scott_417]

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

[Prashant (I am Back) · Accepted solution]

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.

[scott_417]

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)]

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

[scott_417]

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]

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)]

possible
100% online process.