CH3SNAS: Degraded Raid Status

In some very rare conditions (I still did not found when and why) it’s possible that a RAID1 array made onto the CH3SNAS gets into a degraded status and even a reboot is not solving the issue.

How to get the RAID array fixed again?

First of all: make sure you have telnet running. Telnet can be installed by using one of the many fun_plugs around. So no explanation from me about that.

Login to the shell

first check the actual raid status:

 # cat /proc/mdstat

Normally you should get something like this: 

Personalities : [linear] [raid0] [raid1]
md0 : active raid1 sda2[0] sdb2[1]
xxxxx blocks [2/2] [UU]

But when degraded the raid status shows: [_U] or [U_]

Do some debugging with the command:

# mdadm -D /dev/md0

This will show the actual HDD’s in the array. For the CH3SNAS it can be:

/dev/sda2 or /dev/sdb2 if one of the disks is not in the array anymore you have to add it manually by using the following command:

mdadm /dev/md0 -a [degraded hdd]

this is: /dev/sdb2 or /dev/sda2

System will report: 

mdadm: hot added /dev/sdb2; and the array will be synced again (seen through webinterface or using the `# cat /proc/mdstat command`)

CH3WNAS: enabling Telnet

It took me some effort to get the fun_plug part working on the Conceptronic CH3WNAS, but after hours of testing I was able to create the correct files.

 ch3wnas_telnet.jpg

extracted.jpg

download the telnet package for the CH3WNAS

Copy the RAR file to the root of the harddisk and unpack the rar file also into the ‘root’ (ch3wnas\hdd_a [share]) of the device.

The files: fun_plug, sed and the busyboxy file will be available now. Reboot the device and telnet should be available.

You have to login with the username: root with the password of the admin. If seeing the black screen as shown here: it’s working ..

Have fun ..

Why using telnet? For some: hacking is a way of life, but for me: if there are files you cannot modify / delete for what kind of reason: with the telnet session you can: rm [filename] -rf and ALL is removed (use it with caution, I do not guarantee the safety of your data, cause I do not own your backup) ;-)

b.t.w. no idea how stable it is .. I lost 2 times a connection with the device already .. a hard reboot was the only thing to get it alive again.

it could be possible that you get a black screen and cannot do anything: enter 5784468 and the screen will be unlocked

Blog50 de Top40 van de Top50 toppers

Nadat ik plotseling verdwenen was uit de lijst in de maand November vond ik mezelf  net aan het begin van het nieuwe jaar 2008 weer terug in de Blog50.

In de algehele rangschikking op de 49ste plaats in in de Persoonlijke top zoveel op de 8ste plek. En dat is toch wel knap .. toch? ;-)

Geen honderdduizenden bezoekers per maand, maar wel een vaste schare mensen die wat meer wil weten over IT producten, wat ik eet en drink en waar ik op vakantie naar toe gaat .. En natuurlijk een van mijn grootste  hobbies: de Mixfreaks ;-)

Jaarmix Playlist: JIM TV Hitmix 2007

Even een goede traditie in ere houden dat je hier gewoon de playlijst van video jaarmixen kan vinden ;-) 

-= HITMIX 2007 =-

AKON – DON’T MATTER
50 CENT FEAT. JUSTIN TIMBERLAKE – AYO TECHNOLOGY
CHRISTINA AGUILERA – HURT
AVRIL LAVIGNE – WHEN YOU’RE GONE
AMY WINEHOUSE – REHAB
RIHANNA – WE RIDE
SHAKIRA FEAT. CARLOS SANTANA – Illegal
JUSTIN TIMBERLAKE – WHAT GOES AROUND…COMES AROUND
MIMS – THIS IS WHY I’M HOT
JAMES MORRISON – You Give Me Something
FIXKES – KVRAAGETAAN

meer na de break ..

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RDC 2891 chipset LANDISK

For those people with a RDC 2891 chipset LANDISK (low-cost)

I have managed to get a new kernel driver: kernel-s2891-010b1 

There are no release-notes available yet, but I know for sure that a number of stability / compability issues are or will be solved. Just upgrade the file through the webinterface. Note: No warranties.

Note: this is NOT a kernel update for the RDC2882 chipset. Only for the RDC2891 chipset

Change-Notes

Fixed: Mac OS 10.5 support

Fixed: Mac OS 10.4.x support multi-folders.

Fixed: FileSystem Longname refine.

Add: UPNPAV support iRadio.

Add: HD volume set from web.