[asterisk-users] Asterisk and RAID
gordon+asterisk at drogon.net
Wed Aug 4 11:19:42 CDT 2010
On Wed, 4 Aug 2010, Alejandro Cabrera Obed wrote:
> Dear all, I'll install Asterisk 1.4 in an IBM xSeries 226 server with
> four HD's available, using CentOS as the OS.
> What's the best RAID type recommendation ??? RAID 1 or RAID 5 ???
If your controller supports it. If not, do it with Linux software RAID.
RAID-1 will give you 1 x the drive size with data being written to all 4
disks at the same time, but being read from one - very redundant, but slow
RAID-5 will give you 3x your single disk capacity with one disk acting as
a parity drive - reasonable performance, but one day you'll lose a drive
and then find that a 2nd drive has sector errors when reconstructing the
array and it's then game over - unless it's Linux software RAID and you're
a guru - which you're not as you'd not be posting this question here.
RAID-6 will give you 2x your drive capacity with the ability to survive 2
drive failling - hopefully you can replace one and not have bad sectors on
RAID-10 will also give you 2x your drive capacity but has more performance
Not really an asterisk question though...
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