topic Re: RAID1, Mirror arrange NOT using smartstart in Disk Enclosures

RAID1, Mirror arrange NOT using smartstart

Alastair Baldwin — Tue, 30 Nov 2004 10:51:28 GMT

Hi,

I want to create a mirror on a Windows 2000 Server system on a new HP DL360.

I am having problems with seeing the mirror in Windows 2000's Disk Manager. It can only see a single disk. If I load HP Array Configuration Utility it does show the drives are mirrored.

How do I get it to show in Windows 2000 that these drives are Mirrored? I need to do this to show my boss that these are really configured like this.

Thank you
Alastair Baldwin

Re: RAID1, Mirror arrange NOT using smartstart

Steven Clementi — Tue, 30 Nov 2004 13:31:32 GMT

Since you are using a "hardware" mirror, the OS will never be able to see the configuration... only that there is a Logical Unit out there providing the space the server uses.

If you need to "show" that the drives are mirrored, you NEED to use ACU or... you need co re-configure and use a "software" mirror within the OS.

Whats the difference? Hardware based Mirror, the array controller handles the operations releaving the burden from the CPU. Software based Mirror, the OS/CPU handles the operations and overhead for the drive config lowering your max potential performance power for the server.

Steven

Re: RAID1, Mirror arrange NOT using smartstart

Steven Clementi — Tue, 30 Nov 2004 13:34:38 GMT

I would suggest the hardware mirror and a way to talk your boss into the fact that ACU IS the only way.

Steven