Overview of RAID 5
RAID is short for Redundant Array of Independent Disks, originally called Redundant
Array of Inexpensive Disks. The basic idea is to combine a number of relatively
inexpensive hard disks together to become a hard disk arrays and make the
performance be same as, or even better than an expensive, large capacity hard disk.
Simply put, RAID is to assemble a multi block independent disks (hard disk)
according to different ways to form a disk group (logical hard disk). It can provide
higher storage performance and data backup technology than the single disk. Disk
array can be combined in different ways, so we called it RAID Levels which can be
divided RAID-0, RAID-1, RAID-1E, RAID-5, RAID-6, RAID-7, RAID-10, RAID-50, and
RAID-60. Among them, RAID 0, RAID 1 and RAID 5 are common.
RAID5 refers to independent distributed parity disk structure. Under commercial
application environment, RAID5 is a most widespread RAID level. The biggest
characteristic of RAID5 is hard disk redundancy. RAID5 requires 3 or more than 3
hard disks, and unilization ratio is N-1 of storage space. For RAID 5, the parity
check codes exist in all disks, its readout efficiency and write efficiency are
high, and block type collective access efficiency is also good. Due to the feature,
data security reliability improves and allows a single disk to go wrong. For RAID,
it is based on the data of the parity bit to ensure the security of data by storing
alternately the parity bit in each hard disk. In this way, if any hard disk damage,
you can reconstruct the corrupted data based on the parity bit of other drives.
Expand RAID 5 Partition Windows SBS 2011 to Solve Low Space
On Windows SBS 2011, if RAID 5 partition space is not enough along with data
increase, how will you do? Maybe someone will repartition RAID 5 array, but it is
quiet time-consuming and complicated because there are at least 3 hard disks. The
most effective way is using AOMEI
Partition Assistant Server to expand RAID 5 partition in Windows SBS
2011. It supports to resize, split, move, and extend partition for managing disk and
partition safely and quickly. Here are some steps to help you expand RAID 5
Step 1: Launch AOMEI Partition Assistant Server, then choose a partition to
right click and select “Resize Partition”. Here resizing I drive as an example.
Step 2: Then drag the slider like the screenshot to allocate some space
before I partition.
Step 3: Then you will see there is some unallocated space behind the
partition which need to expand.
Step 4: Resize the partition which is running out of space, and right drag
the slider, and then click “Ok”.
Step 5: Then click “Apply”, and you will see the partition has been
In a word, in fact, it is easy for users to expand RAID 5 Partition Windows SBS
2011 under AOMEI Partition Assistant Server. No matter in SBS 2011, 2003, 2008, or all
PCs and Servers, the software is a good assistant. After resizing partition, your
computer will runs quickly on RAID 5 array in Windows SBS 2011.