Raid Recovery Tips

I have my OneTouch III Turbo connected via Firewire and I’m unable to use the Security Erase function.

Please note, Security Erase process only supports OneTouch III Turbo drive when the following two conditions are met:
1. Drive connected to USB interface
2. Drive is in Raid 0 mode. Running Security Erase in Raid 1 mode could cause the drive to be corrupted at the end of the erase process.
The software will reject the request and prompt user with a message when security erase process was attempted with 1394 interface cable.

Overview:

This Knowledge Base article describes a specific RAID reconfiguration; it describes how to re-configure the arrays using a Mylex Spanning feature to create a single 1.45 TB user volume spanned across Arrays 0 and 1 without a performance reduction. This procedure is data destructive for both user volumes. This procedure does not require the use of any special service tools. This procedure does not require system downtime, but the performance of the system will be affected significantly for about 10 minutes. System performance will also be slightly reduced for about 30 hours during the “background” creation of the redundant data…

What is Seagate BlackArmor and how does it differ from Maxtor BlackArmor?

The name BlackArmor was first introduced in 2008 as a portable Full Disc Encryption drive, however, at that time it was termed the Maxtor BlackArmor.  Now we are extending the use of that product name under the Seagate brand. Seagate BlackArmor is now the family name for a suite of storage solutions packaged for small business.  The Seagate BlackArmor NAS 440 and Seagate BlackArmor NAS 420 network storage servers are just the first two solutions in what will be a complete lineup of BlackArmor products, to include 4 Bay,…

The following procedure provides the steps necessary to configure a RAID 0 Volume on your Onetouch III Turbo Edition using the Maxtor OneTouch Manager for Mac:

1. Open the Maxtor OneTouch Manager.
2. From the main menu, select the OneTouch III Turbo drive and click select Settings.
3. From the Setting screen, click the RAID tab.
4. To create the mirror, click the RAID 0 for Speed button.
   All data currently on the OneTouch III Turbo drive will be erased during this process. It is recommended that you backup any/all data stored on your OneTouch III Turbo drive before continuing.
   Click Erase to proceed.
   If prompted, enter your…

The following procedure provides the steps necessary to configure a RAID 1 Volume on your Onetouch III Turbo Edition using the Maxtor OneTouch Manager for Mac:

1. Open the Maxtor OneTouch Manager.
2. From the main menu, select the OneTouch III Turbo drive and click select Settings.
3. From the Setting screen, click the RAID tab.
4. To create the mirror, click the RAID 1 for Safety button. 
   All data currently on the OneTouch III Turbo drive will be erased during this process. It is recommended that you backup any/all data stored on your OneTouch III Turbo drive before continuing.
   Click Erase to proceed.
   If prompted, enter your…

A comparison of usable drive space to physical disk drive capacity.

Overview: There are two main factors affecting your total system storage capacity:

• RAID Overhead
• Conversion between Binary and Decimal Byte “Equivalents”

In some cases, the overhead is 50% of the total hard drive capacity.

Comparing Binary and Decimal Equivalents:

The following Table charts common Binary/Decimal Values:

RAID Overhead:
With Raid 1 (Mirror) or Raid 5 (Strip Set with Parity), a certain portion of the disk space will be used for redundancy thus it will not show up as usable space.

Example of NAS 6000 Capacity Calculations:
The NAS 6000 base unit has twelve 160 GB hard…

The NAS 4000 Series is a file server. Maxtor highly recommends you make backups of the NAS, as you would with any server.

How do I…

• Identify a failed RAID 5 Volume
• Remove/Replace a Failed Drive in a Failed RAID 5 Volume
• Recover a RAID 5 Volume

…using Seagate’s BlackArmor Manager?

Seagate BlackArmor NAS 440 products come with a RAID 5 Volume by default to ensure data protection. If one drive fails, a user can:

• Easily identify the failed drive using the BlackArmor Manager and other tools.
• Remove the defective drive and replace it with a functioning drive provided by Seagate.
• Use BlackArmor Manager to claim the replacement drive and recover the RAID 5 volume.

All of these things can be accomplished while the BlackArmor NAS 440 is still…

A RAID 1, or "mirror", is built from two disk drives, where one disk drive is a mirror of the other (ie, the same data is stored on each disk drive). Compared to independent disk drives, a mirrored volume provides faster performance, but has only 50% of the capacity.
The following provides the steps necessary to create RAID 1 volume. It is assumes the following:

• You have backed up any/all critical data off of the BlackArmor NAS Server.
• All previous unneeded Volumes have been deleted.
• You are currently logged into the BlackArmor Manager with admin privileges.

Procedure(s):

1. Mouseover Storage and click Volumes. The Volumes…

A volume with RAID 10 is built from two or more equal-sized RAID 1 volumes. Data in a volume with RAID 10 is both striped and mirrored. Mirroring provides data protection, and striping improves performance.
The following provides the steps necessary to create RAID 10 Volume. It is assumes the following:

• You have backed up any/all critical data off of the BlackArmor NAS Server.
• All previous unneeded volumes have been deleted.
• You are currently logged into the BlackArmor Manager with admin privileges.

Procedure:

1. Mouseover Storage and click Volumes. The Volumes page opens.
2. Click the Add icon. The Volume Add Disk Selection page opens. Select the…