Raid Recovery Tips

Note: A RAID 1 array is designed for fault tolerance. You will not notice any performance increase in your computer after creating a RAID 1 array. A RAID 1 array uses the second hard drive to copy the data of the first drive. Should one of the hard drives fail, you will still be able to boot your computer using the second hard drive.
Important: After creating a RAID 1 array, the total capacity of both hard drives will not appear as usable space in Windows. Because the second hard drive is being used to store the exact same data of the first drive,…

Note: A RAID 0 array is not fault tolerant. It is recommended that you backup any important data that you decide to store on the array.
To create a RAID 0 array please follow the steps below:

1. With the computer powered off, follow the instructions for installing the RAID controller correctly and connect both Serial ATA hard drives to the controller.
2. Boot your computer with the controller and drives already installed.
3. Watch your boot screens for a prompt that will ask you to press the Control and F keys at the same time to enter the Fastbuild utility and press those keys to enter.
4. Press the 1 key to enter…

All WD ShareSpace drives support Spanning, RAID-0 (Striping), RAID-1 (Mirroring), and RAID-5 (Redundancy with parity). Each RAID mode may or may not be available for usage based upon how many internal hard drives are installed in the enclosure.

Please Note:   Depending on how the WD ShareSpace RAID is setup, that RAID array may not be recoverable from a drive failure.

Qty of 2 – 1TB internal hard drives:

• RAID-0 – 2TB – (Not recoverable)
• RAID-1 – 1TB – (Recoverable)
• RAID-5 – (Not Supported)

Qty of 3 – 1TB internal hard drives:

• Spanning – 3TB – (Non recoverable)
• RAID-0 – 3TB – (Non recoverable)
• RAID-1 – (Not Supported)…

Advantages of RAID

RAID is an acronym for Redundant Array of independent Disks. With RAID enabled on a storage system you can connect two or more drives in the system so that they act like one big fast drive or set them up so that one drive in the system is used to automatically and instantaneously duplicate (or mirror) your data for real-time backup.

There are three reasons you might want a RAID system of drives.

1. You need tons of storage space and you need it to be fast. (RAID 0)
2. You want to instantaneously and automatically backup your data. (RAID 1)
3. You want both. (RAID 5)

Which…

!!WARNING!!
If the firmware upgrade installation instructions are not followed properly the firmware upgrade could be data destructive and/or render your hard drive inoperable. As Seagate does not warrant the data on your drive, in addition to regular back-ups, if possible your data should be backed up before upgrading the drive firmware.  Additional information on backing-up the contents of your drive can be found at www.seagate.com.  Though this firmware upgrade to your product is a change to the product the terms and conditions of your Seagate warranty for the product will remain effective to its normal expiration.  For other warranties on…

The NAS 4000 Series has a software controlled RAID 5 disk array, Dual 10/100 NIC’s, and two independent, mirrored Operating Systems.

Identifying hard drive failures and RAID regeneration times for the NAS 4100.

Overview: The NAS 4100 comes with 4 separate hard drives. In the event of a hard drive failure you will be notified via an Email alert and/or Web UI. RAID regeneration can take up to 30 minutes depending on which drive has failed.
To check status of your NAS 4100 drives use Logical Disk Manager. To access the Disk Management utility:

2. Open “MaxNeighborhood” and double-click on the NAS 4100 that you want to create the folder on.
3. Login to NAS 4100 with the appropriate Administrator (or Administrator equivalent) username and password.
4. Click on "Administer…

Overview: The standard configuration for a NAS 6000 base unit includes two user volumes, each supporting up to 960GB of raw storage capacity for a total of 1.9TB. In a RAID 5 configuration, the usable capacity is 723 GB on the first volume and 768 GB on the second. This document describes the optimal way to reconfigure this user space into a single 1.5 TB user volume (base unit only), or up to a 4.43 TB user volume on a fully configured MaxAttach NAS 6000 (base unit plus two expansion units).

The NAS 6000 base unit contains twelve 160GB hard disks. This…

My Macintosh (running Apple OS 8.6 – 9.2.2) freezes during system startup when my 1394 Personal Storage/External Storage drive is attached to the FireWire port.

This error happens if you installed the optional Maxtor FireSCSI Extension Set at the same time you installed the Maxtor Utilities.

At the Apple Menu choose: Control Panels / Extensions Manager. From the View menu, select as Items. Click on the Name column (near the top of the Extensions Manager window). This will lists extensions in alphabetical order. Find the following extensions and uncheck each one to disable it from loading:

• FireSCSI Expert
• FireSCSI Maxtor Enabler
• FireSCSI RBC RAID Enabler…

Linux Offsite Resource Links
(All links point to sites outside Seagate Technology. See Disclaimer below.)

• http://www.nyx.net/~sgjoen/disk.html This document describes how best to use multiple discs and partitions for a Linux system. Although some of this text is Linux specific, the general approach outlined here can be applied to many other multi tasking operating systems.

• http://tldp.org/HOWTO/Hard-Disk-Upgrade/index.html
  This document describes how to copy a Linux system from one hard disc to another.

• http://tldp.org/HOWTO/Partition-Rescue/index.html
  This document describes how to rescue your Linux partition if MS-DOS deleted it.

• http://tldp.org/HOWTO/Partition/index.html
  This document explains how to plan and layout disc space for a Linux system. It talks about disk hardware, partitions, swap space sizing…