DSM-G600, DNS-3xx and NSA-220 Hack Forum

Unfortunately no one can be told what fun_plug is - you have to see it for yourself.

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#1 2008-08-22 15:57:39

fordem
Member
Registered: 2007-01-26
Posts: 1938

Just a heads up for those of you who may be running RAID1

For the past few months I have been running my DNS-323 (hw A1/fw 1.05) with a pair of 80GB Maxtors in a RAID1 configuration with no fun_plug or other enhancements.  It appeared to be running fine - no LED failure indications, no emails and the status page showed everything as expected.

Whilst transferring some data I noted that only the left drive LED was showing activity, so on completion of the transfer I pulled the right drive and hooked it up to a PC running Windows XP Pro and the EXT2IFS file system driver - the expected partitions were there, but no data whatsoever, I then pulled the left drive and connected it - same partitions with my data.

It is obviously possible for this device to be in a RAID1 configuration, but not be functioning as a RAID1 device, with no error indications whatsoever.

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#2 2008-08-22 17:13:58

bq041
Member
From: USA
Registered: 2008-03-19
Posts: 709

Re: Just a heads up for those of you who may be running RAID1

Interesting, because I have done the same thing and had the data on both drives.  My "live" unit is A1/1.04 and it definately has data on both.  My "test" unit is B1/1.05 and it also has data on both drives.  I did also notice that it seems to only flash 1 drive light when transfering data, but tests on only 1 drive showed it on both.  I have not tested this with A1/1.05, as in your scenerio.

You may want to try mdadm to pull up a detail of the array and see what it reports back as the status.  I guess it is possible it has had 1 drive listed as a spare, not as an active drive.


DNS-323     F/W: 1.04b84  H/W: A1  ffp: 0.5  Drives: 2X 400 GB Seagate SATA-300
DNS-323     F/W: 1.05b28  H/W: B1  ffp: 0.5  Drives: 2X 1 TB  WD SATA-300
DSM-G600   F/W: 1.02       H/W: B                Drive:  500 GB WD ATA

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#3 2008-08-22 22:05:38

nUll
Member
Registered: 2008-03-09
Posts: 113

Re: Just a heads up for those of you who may be running RAID1

For me both LED's light are blinking when reading or writing to it.
I am using 1.05 with fun_plug

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#4 2008-08-22 22:11:52

fordem
Member
Registered: 2007-01-26
Posts: 1938

Re: Just a heads up for those of you who may be running RAID1

nUll wrote:

For me both LED's light are blinking when reading or writing to it.
I am using 1.05 with fun_plug

This is what I had observed in the past.

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#5 2008-08-22 23:28:01

bspvette86
Member
Registered: 2008-05-09
Posts: 81

Re: Just a heads up for those of you who may be running RAID1

Fordem,
Have you possibly pulled one of the drives out and plugged it back in without wiping it and doing a re-sync?  I've seen you post several times in the past about pulling drives, reusing drives, etc....  Here's one for example: http://forums.dlink.com/index.php?topic=1732.0

BV

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#6 2008-08-23 00:33:14

fordem
Member
Registered: 2007-01-26
Posts: 1938

Re: Just a heads up for those of you who may be running RAID1

No - these drives were installed and formatted as a RAID1 array after one of those "test" sessions.  They are not new drives, but one of two pairs that I have on hand.

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#7 2008-08-26 16:47:40

ismora
Member
From: Paris, France
Registered: 2008-07-30
Posts: 30

Re: Just a heads up for those of you who may be running RAID1

I already made the comment in some previous thread that the RAID 1 implementation in DNS-323 seemed rather sloppy :-/

Fordem, do you have an idea of what happened?
Have you tried to put the disk back in the box and set it back in RAID1 use?


DNS-323 • 2x Hitachi 500MB • RAID1 • FW1.04 • ext3 • Fonz's v0.5 fun_plug
DNS-325 • 2x WD Green 2TB • RAID1 • FW?.?? • ext3 • Fonz's v0.7 fun_plug

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#8 2008-08-26 18:28:15

fordem
Member
Registered: 2007-01-26
Posts: 1938

Re: Just a heads up for those of you who may be running RAID1

ismora - to respond to your comment - I'm not a great fan or software based RAID implemntations, and that is what this is - I might have been happier if D-Link had provided a CLI that I could use to manipulate it, and yes, I'm aware that I can do it through fun_plug.

To answer your questions - no - I have no idea what happened, based on the fact that the second disk had neither data nor the folders I had created, I'm assuming the DNS-323 never properly created the array - and - yes - I put both disks back in and reformatted it first as separate disks and then as a RAID1 array, and although I haven't gone to the trouble of pulling the disks and checking them for data, it appears to be working - at least both drive activity LEDs flash when I write to it.

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#9 2008-08-26 21:28:27

ismora
Member
From: Paris, France
Registered: 2008-07-30
Posts: 30

Re: Just a heads up for those of you who may be running RAID1

I use software RAID on some Linux boxes, and it does not make me feel so insecure.
What I don't like here is not as that much the software RAID, as the more or less automatic and more or less reliable management layers that D-Link seems to have installed over it (how it finds out a failed disk, the procedure to replace a disk, etc.), generally involving the very limited web interface for user actions.
I would rather use mdadm by hand (which indeed may be possible with an usb bootable system; maybe I will try it if something fails, but I don't feel like doing this as all seems fine...).


DNS-323 • 2x Hitachi 500MB • RAID1 • FW1.04 • ext3 • Fonz's v0.5 fun_plug
DNS-325 • 2x WD Green 2TB • RAID1 • FW?.?? • ext3 • Fonz's v0.7 fun_plug

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#10 2008-08-26 21:55:12

blahsome
Member
Registered: 2008-03-02
Posts: 157

Re: Just a heads up for those of you who may be running RAID1

And I almost got my head bitten off last time by saying RAID1, along with RAID0, was overrated on the DNS-323.

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#11 2008-08-26 23:45:17

bq041
Member
From: USA
Registered: 2008-03-19
Posts: 709

Re: Just a heads up for those of you who may be running RAID1

I would rather use mdadm by hand (which indeed may be possible with an usb bootable system; maybe I will try it if something fails, but I don't feel like doing this as all seems fine...).

Do a search, I have been managing this way for some time.  It can be done with standard ffp, it just takes a little bit more time as you can only work on 1 disk at a time.


DNS-323     F/W: 1.04b84  H/W: A1  ffp: 0.5  Drives: 2X 400 GB Seagate SATA-300
DNS-323     F/W: 1.05b28  H/W: B1  ffp: 0.5  Drives: 2X 1 TB  WD SATA-300
DSM-G600   F/W: 1.02       H/W: B                Drive:  500 GB WD ATA

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