RAID Data Recovery
Eco Data Recovery provides RAID
data recovery and can restore or recover your RAID,
SAN, NAS, Snap Server, and many others. We run multiple, terabyte
capable servers to tackle the larger RAID'S that arrive here
for RAID data recovery.
Utilizing custom software and hardware solutions, Eco
Data Recovery is the ONLY choice for if you need
RAID data recovery from a failed on inaccessible RAID 0, RAID
1, or RAID 5. Don't be misled by companies that offer on-site
or sometimes worse, remote recovery options. If there are
2 or more failed hard drives in a RAID 5, remote recovery
is generally not an option.
Before any data recovery, or RAID recovery utilities are run
against a RAID, all the disks must be cloned sector by sector
in order to rebuild and recover the array.
This allows the technician to recover data from a good working
source, rather than a potentially failing or failed hard drive.
Anything short of that is a potentially catastrophic accident
waiting to happen. Just one foul up, errant click or even
bad advice from 'tech support' and ALL of your data can be
lost, or amount to what is basically "digital confetti".
We have successfully recovered RAID data from servers that
have been at many of our competitors.
DO NOT SEND YOUR RAID ARRAY TO ANY COMPANY WITHOUT
VERIFYING THEIR CAPABILITIES.
RAID Data Recovery Services
RAID 0, 1, 5, 10
In this day and age, there are more and more companies utilizing
large storage units. There is no data recovery company that
has the RAID data recovery experience of
working with, and recovering data from RAID devices
that our company has. (Dell PowerEdge, Xserve, LaCie Big Disk,
HP ProLiant, Buffalo, G-RAID and more.)
What a RAID (Redundant Array of Independent Disks)
All the disk devices are organized alternatively so that
blocks are taken equally from all disks alternatively, in
order to reach higher efficiency. Since the probability of
finding a block of a file is identical for all disks, there
are force to work simultaneously thus making the performance
of the Meta disk almost 10 times that of a single disk.
In this mode, the goal is to reach the highest security
of the data. Blocks of data are duplicated in all physical
disks (each block of the virtual disk has a duplicate in each
of the physical disks). This configuration provides 10 times
the reading performance of a single device, but it degrades
writing operations. Read operations can be organized to read
10 blocks simultaneously, one from each device at a time.
Similarly when writing 1 block it has to be duplicated 10
times, one for each physical device. There is no advantage
in this configuration regarding storage capacity.
In this mode the ultimate goal is to balance the
advantages of the type RAID0 and RAID1. Data is organized
mixing both methods. The physical 1 to N-1 are organized in
striping mode (RAID0) and the Nth stores the parity of the
individual bits corresponding to blocks 1 to N-1. If any of
the disks fails, it is possible to recover by using the parity
information on the Nth hard disk. Efficiency during read operations
is N-1 and during write operations is 1/2 (because writing
a data block now involves writing also to the parity disk).
In order to restore a broken hard disk, one only has to re-read
the information and re-write it (it reads from the parity
disk but it writes to the newly install hard disk).
This type is similar to RAID 4, except that now the
information of the parity disk is spread over all the hard
disks (no parity disk exists). It allows reducing the work
load of the parity disk, that in RAID 4 it had to be accessed
for every write operation (now the disk where parity information
for a track is stored differs for every track)
RAID 0+1: striped sets in a mirrored set (minimum
four disks; even number of disks) provides fault tolerance
and improved performance but increases complexity. The key
difference from RAID 1+0 is that RAID 0+1 creates a second
striped set to mirror a primary striped set. The array continues
to operate with one or more drives failed in the same mirror
set, but if drives fail on both sides of the mirror the data
on the RAID system is lost.
RAID is NOT Data Backup!
A RAID system used as a main drive is not a replacement
for backing up data. Data may become damaged or destroyed
without harm to the drive(s) on which they are stored. For
example, some of the data may be overwritten by a system malfunction;
a file may be damaged or deleted by user error or malice and
not noticed for days or weeks. RAID can also be overwhelmed
by catastrophic failure that exceeds its recovery capacity
and, of course, the entire array is at risk of physical damage
by fire, natural disaster, or human forces. RAID is also vulnerable
to controller failure since it is not always possible to migrate
a RAID to a new controller without data loss.
Do you have a failed or inaccessible RAID and need Data Recovery?
to speak with a consultant about your RAID array