Managing multiple physical disks connected directly to a computer can often be a tedious task for administrators.
To overcome this problem, many organizations use SANs that consolidate physical disks.
SANs require specialized configuration and sometimes specialized hardware, making them expensive.
To overcome these issues, you can use the Storage Spaces feature.
Storage Spaces is a Windows technology that can help protect your data from disk failure.
It groups disks together and presents them to the operating system as a single disk.
Storage Spaces is a storage virtualization technology.
It is available in Windows Client and Windows Server.
The storage space in Windows Server Datacenter edition is called Storage Space Direct.
Storage is conceptually similar to RAID, but it is implemented in software form.
You can use Storage Spaces to group three or more disks into a storage pool, and then use the capacity of that pool to create Storage Spaces.
You will then present these storage spaces to the operating system as highly available, independent individual disks.
The main advantage of Storage Spaces is that you don't need to manage single disks and can manage multiple disks as a single unit.
Storage layout:
Simple:
A simple space has data distribution but it offers no redundancy.
Sequential data is striped across all disks.
Striping allows simultaneous access to several data segments.
Do not host important data on a single volume
Two-way and three-way mirrors:
Mirror spaces keep two or three copies of the data they host.
Data duplication occurs on every write to ensure that all data copies are always up to date.
Mirror spaces also distribute data across multiple physical disks.
Mirror spaces offer the benefit of higher data throughput and lower access latency.
Parity:
A parity space is similar to RAID 5.
Storage Spaces store data, along with parity information, spread across multiple physical disks.
Parity allows storage spaces to continue processing read and write requests even if a disk fails.
Parity is always running on available disks to allow for I/O optimization.
You will need at least three physical disks for parity spaces.
Timestamp:
0:00 Introduction
1:37 Concepts
4:32 Create a pool
6:04 Rename the pool
6:46 Create storage space
10:03 Add disks to pool
10:24 Resize your storage space
10:58 Disk Management Console
11:49 Remove disks from pool
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