I would like to ask the used disk configuration clearance by following three kinds of tools,
I got some used disks from Sun StorageTek6140 & IBM DS4700. As I knew that it should be cleared DACStore configuration by "clear configuration" on OEM disk manager tool (called as Santricity).
Purpose: Clear the configured disk configuration to re-use the disk after clear DACStore information.
Question: The following three kinds of method, are they all same result to re-use the disk as parts on any other disk array system?
Method 1: Clear system configuration on the demo system. Maintenance > Clear Configuration ( All configuration included in RAID controller, each disks DACStore config, NVRAM config.)
Method 2: Erase full disk by each disk vendor tools (Hitachi: WinDFT, WD: DataGuard Diagnostics, Seagate: DiskWizard)This function is the full erase(overwrite). But It is not sure that this ops can be cleared the disk configuration on DACStore location.
Method 3: Erase the MBR sector. It is not sure that this ops can be cleared the disk configuration on DACStore location.
Please provide the tips to clear the used-disk configuration for re-use the disk as parts. I didn't have Sun 6140/ IBM DS4700 base system with RAID controllers. So I am looking forward to clearing disk configuration with less money.
Can I get the effect with method2 or method3 same as method1, or not ?
Would you please explain the differences between MBR and DACStore also?
What are the differences between MBR clearance and DACStore clearance?