Thanks, I have read thoose plus many others.Eventually put the info together from a Gentoo and the main dm-crypt howtos..I have two disks sda and sdb in raid one with encryp... [by Fizzer]
on 02/11/2010 – Made popular on 02/11/2010
I just got a new remote root-access server with 2 1TB disks in a Raid 1 configuration, running Debian (squeeze). Before installing my stuff on it, I'd like to switch to Raid 10 if I can. All the instructions I can find, for example Best way to grow Linux software RAID 1 to RAID 10, are for going from a 2-disk Raid 1 to a four
disk Raid 10.
A few days ago, I started upgrading my raid (raid 5) from using 4x1TB to 4x3TB. Never done this before, so it took a while. I replaced the disks one by one and rebuilt the raid in between as I read in some guide. All worked fine, except fdisk complained a little bit about my disks being very large. Didn't think much of it at the time.
I have two 500 GB disks that I have installed on my ubuntu 12 system, One is my main file system, and the other I partioned as a RAID disk in the ubuntu installation. I would like to remount the second disk so I can use it with Linux raid and view it on webmin. Right now it is not even being listed a mounted.
I have 22 disks and would like to create a Raid 10. Unfortunately my raid controller (MegaRAID SAS 9260-8i) is only capable to handle 8 arrays within a RAID 10. Because of that I could only use 16 disks in a 2 disks per array configuration.
The standard way to setup a RAID 1 under Linux is to use two disks of the same size.
The write performance is almost as good as with a single disk drive.
The read performance can be up to twice the speed of a single disk.
For additional redundancy, we want to add another disk as a hot spare to the system.
In the past the rebuild of RAID 1 and RAID 5 setups with disk sizes of 1-3TB did sometimes
a little background to this question first:
I am running a RAID-6 within a QNAP TS869L external RAID/NAS system. I started with 5 disks of 3 TB each back in the day, and later added another 2 disks of 3TB to the RAID.