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#1 2008-03-20 23:37:31

KWS
New member
Registered: 2008-03-20
Posts: 1

Independent Drive Access and Mirroring Questions.

Hello,

I am using a DNS-323 as a RAID set-up. I have three SATA hard drives and what I would like to do is be able to keep two in the enclosure like normal, while replacing one with the third every month or so. This way, I have two hard drives that switch in/out of the mirroring position and one staying in as a constant. Also, I would like to be able to read the third, odd-drive-out of the enclosure through USB. I have tried this using ExtFS Manager, though have not had any luck in mounting the drive. I am using a Mac and am not sure what I am doing right or wrong concerning these issues. What do you think?

Thank you in advance.

Kevin

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#2 2008-03-21 05:02:52

jayas
Member
Registered: 2008-01-24
Posts: 151

Re: Independent Drive Access and Mirroring Questions.

Hi KWS

If you have CLI (TELNET/SSH) interface going then the easiest way would be to do the following:
1/  Do the following through CLI:

Code:

mdadm -f /dev/md0 /dev/sdb2
mdadm -r /dev/md0 /dev/sdb2

2/  Shutdown DNS-323, swap the drives in the left hand slot
3/  Restart DNS-323 and do the following through CLI:

Code:

mdadm -a /dev/md0 /dev/sdb2

It appears that sometimes a second reboot is required after the newly inserted disk has been sync'ed just to get rid of the amber light.

As to reading the third drive, I run off XP and do this using Ext2-IFS.

Hope this helps.

Jaya


H/W=B1 F/W=1.04; RAID1: SAMSUNG HD501LJ T166 (500GB, SATA 3.0Gb/s 16MB)

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