topic Re: RAID controller replacement in Disk Enclosures

RAID controller replacement

Leonard Thng — Wed, 04 Jan 2006 01:53:28 GMT

Hi,

Currently i've an array of 3 harddisks of 36GB of RAID 05 connecting to a smart array controller. If my controller fails and i replace the controller, will my array information still be available? Will all the information such as RAID configuration and data still be available after replacement? Any HP web link i can find information regarding this document?

Many thanks!

Leonard

Re: RAID controller replacement

Uwe Zessin — Wed, 04 Jan 2006 03:57:34 GMT

The new controller can pick up the existing disk configuration from the meta data that was stored on the disks by the current one.

Re: RAID controller replacement

Leonard Thng — Wed, 04 Jan 2006 04:26:18 GMT

Hi Uwe,

Are there any HP documents published on the web that states about such information? Thanks.

Leonard

Re: RAID controller replacement

Ivan Ferreira — Wed, 04 Jan 2006 06:53:30 GMT

Check your array controller documentation, it may be there, but that information is available for people that takes the course with hp. You can trust Uwe.

Re: RAID controller replacement

Leonard Thng — Wed, 04 Jan 2006 10:58:24 GMT

Hi,

it's not that i can't trust uwe. Actually i'm asking on behalf of my colleague who needs the document for a respond to customer.

sorry uwe for seeming to doubt your response. hope u understand. appreciate your valuable information.

Thanks.

Leonard

Re: RAID controller replacement

Basil Vizgin — Wed, 04 Jan 2006 12:20:42 GMT

Look for witepaper
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual〈=en&cc=us&docIndexId=179111&taskId=101&prodTypeId=329290&prodSeriesId=367226
Ultra320 SCSI technology in HP Smart Array controllers technology brief
and for User Guide:
http://h20000.www2.hp.com/bizsupport/TechSupport/CoreRedirect.jsp?redirectReason=DocIndexPDF&prodSeriesId=367226&targetPage=http%3A%2F%2Fh20000.www2.hp.com%2Fbc%2Fdocs%2Fsupport%2FSupportManual%2Fc00574141%2Fc00574141.pdf

From this documents:
Data compatibility
Each Smart Array controller provides complete data compatibility with previous-generation Smart Array controllers. This compatibility makes it easy to upgrade array controllers by swapping controllers, and makes it easy to migrate data from server to server by moving data drives to new controllers.
--
You can move drives to other ID positions on the same array controller. You can also move a complete array from one controller to another, even if the controllers are on different servers.

Re: RAID controller replacement

Leonard Thng — Wed, 04 Jan 2006 22:27:51 GMT

Hi Basil,

Thanks for the link!!

Leonard