topic Re: Dynamic Disk in Disk

Dynamic Disk

Anthony_137 — Fri, 03 Mar 2006 11:03:14 GMT

Hello,

i've a question about the dynamic disk, windows 2003 and RAID 5 (hard).
I have a msa1000 which contains 3 Raid 5 (900 GB/raid) configured for spanned partition of 2.7To.
If one physical disk failed on my spanned volume, can i lose data ?
Therefore, if i lose a entire RAID 5, all my data will be lose ?

Re: Dynamic Disk

Steven Clementi — Fri, 03 Mar 2006 11:53:42 GMT

Anthony:

If the 3 hardware RAID 5 Logical disks are software RAID5'ed on the OS, then no. You can lose a whole logical drive and still be operational. It sounds like it may be RAID0 though. If so, then yes. I haven't worked alot with dynamic disks so I am not absolutely sure, but a "Spanned Volume" sounds like software RAID0 to me.

Steven

Re: Dynamic Disk

Anthony_137 — Fri, 03 Mar 2006 12:02:15 GMT

My three RAID 5 have been created by ACU (so RAID hardware).
So if a complete raid 5 fail, I will lose all my volume spanned.
If only one physical disk fail, i won't lose any data...

Is it right ?

Re: Dynamic Disk

Steven Clementi — Fri, 03 Mar 2006 12:12:47 GMT

If you lost a single physical disk, or even 3 physical disks (from separate arrays), then YES... your data is still accessible.

If you lost a complete RAID5 set (2 physical disks or more lost in one array), then yes, you would lose the spanned volume, or at least I think you would. Again, not very familar with dynamic disks.

Steven

Re: Dynamic Disk

Anthony_137 — Mon, 06 Mar 2006 03:14:41 GMT

ok.
My opinion is the same of yours...