Raid 0 - how does it utilise the disks?
Posted 09 May 2007 - 10:31 AM
Posted 09 May 2007 - 04:25 PM
If you're seeing two separate drives of 80Gb each then they're not in RAID 0 configuration - they're both standalone. If they were in RAID, you'd see one 160Gb drive C.
Posted 10 May 2007 - 04:32 AM
But under "Disk drives - properties - hardware " -it reports "Promise 2+0 stripe/Raid 0 scsi Disk Device" and under Volumes it reports "Disk 1, Type Basic, Status: Online, Partition Style: Master Boot Record(MBR), Capacity 156320Mb, Unallocated space 0Mb, Reserve Space: 0Mb Volumes: Raid(C:) 78152Mb, Raid (E:) 78168Mb. The word Raid in the disk titles is of course the name I put on the two Maxtors on the raid sockets - so that is not too significant.
Similarly if I go into the Raid Bios the Array appears as "Array 1. Raid Mode -Stripe, Total Drives - 2, Capacity-160Mb, Status - functional.
All that would suggest that it's correctly configured for Raid0 - but Windows explorer is not calling it one drive - What am I missing here???
Edit: - I have just copied some big video files to deliberately try to overflow from the C: to the E: by exceeding the size of C: - but windows wouldn't play - said "not enough space" so it does not look like my Raid 0 is working.
another Edit: - Could this be to do with Basic versus dynamic disks?? - see http://support.microsoft.com/kb/314343 - If that is the case - ie I need to convert to dynamic - can I do this without losing my current load of programs??
Edited by dfoss, 10 May 2007 - 09:33 AM.
Posted 10 May 2007 - 03:22 PM
If you go into Control Panel -> Administrative Tools -> Computer Management and select your hard drive, it'll tell you here how many partitions there are on the drive. Post a screengrab of it and we'll see what it actually says.
Posted 10 May 2007 - 04:11 PM
For those as slow to cotton on as I am - when I looked at this Computer Management - disk Management page - raid.doc 55.5KB 31 downloads I failed to see the significance of the Layout column saying "partition" - and the green border to the schematic which indicates "extended partition" as well as the blue bar which indicates "Logical drive"
All is now clear - thanks to Neil and also to a pal who also sussed it out from a screenshot of this attachment
Edited by dfoss, 10 May 2007 - 04:34 PM.
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