Topic: Internal Systemdrive + 1/2 USB Drives as storage (raid1)

[hendrikus]

Hi

Is it possible to install the SME Server on a small internal harddisk without raid and use 2 huge external USB harddisk as raid1 storage?

Regard's
Hendrikus

[Gaston94]

technically cou can.
you can install the server on the internal disk (a degraded riad 1 configuration wil be done) , then plug in your external one.
You'll have to manage manually the RAID (and LVM if you want to) properties on your external drives (hint : search "add extra disk"  and mdadm)..

Nevertheless, you have to ensure there will be no connection issue with your hotplug devices, and you  are sure no one is going to disconnect one or another.

G.

[hendrikus]

Gaston,

How did you connect the USB HDD's? I tryed to mount them but Centos doesn't support USB HDD's, it surprise me but it seems to be a fact, as far I know it's the only distribution together with Red Hat who doesn't support it.

Do you know a proper work around? Is changing the kernal to the Centos Plus version an option?

We want to change from a kind of LiveCD server to SME, we even boot the LiveCDserver from flashdisk to memory and used the USB HDD's for data. Building in functionality like SME is a lot of work, so we desided to change to SME.

Regard's Hendrikus

[CharlieBrady]

How did you connect the USB HDD's? I tryed to mount them but Centos doesn't support USB HDD's, it surprise me but it seems to be a fact, as far I know it's the only distribution together with Red Hat who doesn't support it.

CentOS and RedHat both work fine with USB HDDs. What makes you say otherwise?

[Gaston94]

Hi,

How did you connect the USB HDD's? I tryed to mount them but Centos doesn't support USB HDD's, it surprise me but it seems to be a fact, as far I know it's the only distribution together with Red Hat who doesn't support it.

What does make you saying this ?
As far as I have been playing with RH distibution, USB support was OK.
USB devices are being recognized as /dev/sdxxx one (like SCSI one's).
You can issue the following command to have the information from the last event:

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# mesg | grep sd or, before connecting your device, type

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# tail -f /var/log/messages and you will see in real time, what is happening to the system when you plug your devices.
If nothing is being displayed, well, hum,  you unfortunately have an hardware issue.
G.