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Re: Dynamic Disk

 
Anthony_137
Frequent Advisor

Dynamic Disk

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 ?
Antho
4 REPLIES 4
Steven Clementi
Honored Contributor

Re: Dynamic Disk

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
Steven Clementi
HP Master ASE, Storage, Servers, and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5, vSphere 6.x)
RHCE
NPP3 (Nutanix Platform Professional)
Anthony_137
Frequent Advisor

Re: Dynamic Disk

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 ?
Antho
Steven Clementi
Honored Contributor

Re: Dynamic Disk

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
Steven Clementi
HP Master ASE, Storage, Servers, and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5, vSphere 6.x)
RHCE
NPP3 (Nutanix Platform Professional)
Anthony_137
Frequent Advisor

Re: Dynamic Disk

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