High Availability:Hardware:Hard Disks

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The hard disks are one of the hardware components most likely to fail in a system. Therefore, it is important for a high availability system to implement a hard drive redundancy feature.
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The hard disks are one of the hardware components most likely to fail in a system; therefore, it is important for a high-availability system to implement a hard-drive redundancy feature.
  
 
=== [http://en.wikipedia.org/wiki/RAID| RAID] ===
 
=== [http://en.wikipedia.org/wiki/RAID| RAID] ===
Although many solutions are available to achieve this goal, the page will talk more specifically of RAID which is included in some of TelcoBridges' products.
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Although many solutions are available to achieve this goal, the page will talk more specifically about RAID, which is included in some of TelcoBridges' products.
  
 
==== [http://en.wikipedia.org/wiki/Standard_RAID_levels| RAID level] ====
 
==== [http://en.wikipedia.org/wiki/Standard_RAID_levels| RAID level] ====
TelcoBridges has RAID level 1 included in the following list of products:
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TelcoBridges has RAID level 1 included in the following products:
[[TMG5800]], [[TMG7800]], [[TMP5900]], [[TMP7900]], [[TMP7950]] and [[TMG8300]]
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*[[FreeSBC|TSBC-HW-SRV]]
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*[[TMG7800|TMG7800-CTRL]]
  
 
It is recommended to use at least RAID level 1 to have a fault tolerant system.
 
It is recommended to use at least RAID level 1 to have a fault tolerant system.
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*Software RAID
 
*Software RAID
  
TelcoBridges products containing RAID uses the software implementation.
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Latest TelcoBridges products containing RAID uses the hardware implementation.
As the name state, the hard disk redundancy is handled by the OS. Of course, it requires an OS that is supported like CentOS.
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== Recommended Setup ==
 
== Recommended Setup ==
  
 
TelcoBridges highly recommend either storage area network (SAN) and/or RAID 1 and up.
 
TelcoBridges highly recommend either storage area network (SAN) and/or RAID 1 and up.
The [[TMG5800]], [[TMG7800]], [[TMP5900]], [[TMP7900]], [[TMP7950]] and [[TMG8300]] comes with RAID 1 hard disk redundancy.
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The TSBC-HW-SRV and TMG7800-CTRL include RAID 1 hard disk redundancy.

Latest revision as of 08:15, 17 July 2019

The hard disks are one of the hardware components most likely to fail in a system; therefore, it is important for a high-availability system to implement a hard-drive redundancy feature.

Contents

RAID

Although many solutions are available to achieve this goal, the page will talk more specifically about RAID, which is included in some of TelcoBridges' products.

RAID level

TelcoBridges has RAID level 1 included in the following products:

It is recommended to use at least RAID level 1 to have a fault tolerant system.

RAID implementation

There are mainly 3 types of implementation of RAID:

  • Hardware RAID
  • BIOS RAID (not recommended)
  • Software RAID

Latest TelcoBridges products containing RAID uses the hardware implementation.

Recommended Setup

TelcoBridges highly recommend either storage area network (SAN) and/or RAID 1 and up. The TSBC-HW-SRV and TMG7800-CTRL include RAID 1 hard disk redundancy.

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