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Thank you both. The RAID calculator was very helpful as well as the info on stripe size and Write cache
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Thank you both. The RAID calculator was very helpful as well as the info on stripe size and Write cache

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Hello,<br />
I am looking for the fastest sequential write speeds for large files (5 to 20 TB) with some redundancy. I am using Adaptec 31605 card with BBU. I have 12 2TB SATA drives to work with. I keep a backup on another server. These are my questions:<br />
Should I use RAID 5, 50, or 6? (RAID 10 doesn't geive me enough storage for expansion)<br />
Should I use 1024kb stripe size?<br />
Will write cache help me at all?<br />
If RAID 50 is best, what configuration will have fastest write speed? 3x4, 4x3, or 2x6<br />
<br />
Thanks,<br />
Tim<br />

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Hello,
I am looking for the fastest sequential write speeds for large files (5 to 20 TB) with some redundancy. I am using Adaptec 31605 card with BBU. I have 12 2TB SATA drives to work with. I keep a backup on another server. These are my questions:
Should I use RAID 5, 50, or 6? (RAID 10 doesn't geive me enough storage for expansion)
Should I use 1024kb stripe size?
Will write cache help me at all?
If RAID 50 is best, what configuration will have fastest write speed? 3x4, 4x3, or 2x6

Thanks,
Tim


Ideal RAID configuration for a media server

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

Server Hardware

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Storage

RAID stands for Redundant Array of Independent Disks.

RAID is data storage technology that allows multiple drives to be used together as a single virtual drive for reasons such as fault tolerance, reliability and performance. 

There are several different levels of RAID that determine how the data is stored and the level of redundancy achieved across the drives.