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

Ardjan wrote:

The Raid1 says 'degraded', the JBOD is ok. Both are working, as far as I can see. In fact, the only error I see is the white LED, nothing else yet...

In relation to RAID 1, even when one disk goes down, the mounted shares will function normally. This is after all the core functionality provided by mirroring.

Today I finally managed it to test the drive thorougly with the WD provided test-program. No SMART issues displayed, no bed sectors, nothing that points to an error.

This IMO rules out drive problem.  Would be interested to know if you get email alerts though when you have the time to set it up.  The 'test' button provides a convenient way of checking out if DNS-323 can email you.

Excerpt of dmesg.out:

Here is my equivalent excerpt (which does not have amber/white light problem) for comparision purpos:

~ # dmesg
<lost lines off the top owing to buffer wraparound>
  Vendor: SAMSUNG   Model: HD501LJ           Rev: CR10
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: SAMSUNG   Model: HD501LJ           Rev: CR10
  Type:   Direct-Access                      ANSI SCSI revision: 03
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
Attached scsi generic sg1 at scsi1, channel 0, id 0, lun 0,  type 0
physmap flash device: 800000 at ff800000
phys_mapped_flash: Found 1 x16 devices at 0x0 in 8-bit bank
 Amd/Fujitsu Extended Query Table at 0x0040
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness
cmdlinepart partition parsing not available
RedBoot partition parsing not available
Using physmap partition definition
Creating 5 MTD partitions on "phys_mapped_flash":
0x00000000-0x00010000 : "MTD1"
0x00010000-0x00020000 : "MTD2"
0x00020000-0x001a0000 : "Linux Kernel"
0x001a0000-0x007d0000 : "File System"
0x007d0000-0x00800000 : "u-boot"
ehci_platform ehci_platform.20865: EHCI Host Controller
ehci_platform ehci_platform.20865: new USB bus registered, assigned bus
ehci_platform ehci_platform.20865: irq 17, io mem 0x00000000
ehci_platform ehci_platform.20865: park 0
ehci_platform ehci_platform.20865: USB 0.0 initialized, EHCI 1.00, driv
 2004
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
ehci_platform ehci_platform.86401: EHCI Host Controller
ehci_platform ehci_platform.86401: new USB bus registered, assigned bus
ehci_platform ehci_platform.86401: irq 12, io mem 0x00000000
ehci_platform ehci_platform.86401: park 0
ehci_platform ehci_platform.86401: USB 0.0 initialized, EHCI 1.00, driv
 2004
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 1 port detected
ohci_hcd: 2004 Nov 08 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI
usbcore: registered new driver usblp
drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
mice: PS/2 mouse device common for all mice
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27
device-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel@redhat.co
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
NET: Registered protocol family 1
NET: Registered protocol family 17
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
RAMDISK: Compressed image found at block 0
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
VFS: Mounted root (ext2 filesystem).
Freeing init memory: 112K
MINIX-fs: mounting unchecked file system, running fsck is recommended.
MINIX-fs: mounting unchecked file system, running fsck is recommended.
MINIX-fs: mounting unchecked file system, running fsck is recommended.
SCSI device sda: 976773168 512-byte hdwr sectors (500108 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 976773168 512-byte hdwr sectors (500108 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
SCSI device sdb: drive cache: write back
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
SCSI device sdb: drive cache: write back
 sdb: sdb1 sdb2
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
egiga0: mac address changed
MINIX-fs: mounting unchecked file system, running fsck is recommended.
egiga0: link down
egiga0: link up<5>, full duplex<5>, speed 100 Mbps<5>
Adding 530104k swap on /dev/sda1.  Priority:-1 extents:1
Adding 530104k swap on /dev/sdb1.  Priority:-2 extents:1
MINIX-fs: mounting unchecked file system, running fsck is recommended.
ext3: No journal on filesystem on sda2
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
ext3: No journal on filesystem on sdb2
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
MINIX-fs: mounting unchecked file system, running fsck is recommended.
MINIX-fs: mounting unchecked file system, running fsck is recommended.
md: md0 stopped.
md: bind<sdb2>
md: bind<sda2>
raid1: raid set md0 active with 2 out of 2 mirrors
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
Link Layer Topology Discovery Protocol, version 1.05.1223.2005
dev is  <NULL>

It does not look to me like there is any difference of significance (difference even) between the two logs on startup.  Can anyone else see anything of significance?

Perhaps we need to look at what happened after this startup?  Here is mine ...

dev is  <NULL>
md: mdadm(pid 1358) used obsolete MD ioctl, upgrade your software to use new icls.
<more of the same deleted>
md: mdadm(pid 1568) used obsolete MD ioctl, upgrade your software to use new icls.

***************************************
*            HD1 stand by now!        *
***************************************

***************************************
*            HD0 stand by now!        *
***************************************

#######################################
#              HD0 awake now !        #
#######################################

#######################################
#              HD1 awake now !        #
#######################################
md: mdadm(pid 3580) used obsolete MD ioctl, upgrade your software to use new icls.
<more of the same deleted>
md: mdadm(pid 3685) used obsolete MD ioctl, upgrade your software to use new icls.

***************************************
*            HD1 stand by now!        *
***************************************

***************************************
*            HD0 stand by now!        *
***************************************
~ #

If you get anything else reported, that could hold the clue as to what is going on.  I am quite sure though that in your case, it does not appear to be a drive problem at all.

By the way, what is your hardware revision?  I am quite sure version 1.04 firmware I downloaded was for revision B1 hardware, and I am inferring there is another version for revision A1 hardware?

Having said this, I am running the same firmware on another box with revision A1 hardware and I did it by formatting the disks using 1.03 and upgrading to 1.04 without reformatting the disks because I did not like the extra partition.  It has Seagate disks and is running A ok.

Hmm, what do these ext3 references mean in the last few lines? I thought that ext3 was not in the >1.02 firmware anymore?

Looks like they did away with ext3 partition, but forgot to remove the code that checks for it.

Jaya

Ardjan wrote:

E-mail works: "Left Hard Drive Has Failed. Sincerely, your DNS-323" :-) (btw: it would be nice if it told me _which_ DNS323 it was. When there are several DNS'es (not in my case), this mail doesn't tell anything. The name and IP would be nice to know...)

By making the sender e-mail field unique, you can determine which DNS-323 sent the email alert.

jayas wrote:

Someone here who is familiar with mdadm could perhaps indicate how to follow up and check the status of the drives.   I have yet to play with mdadm.

That seems to be the best method. So, Volunteers? :-)

jayas wrote:

As to your other point, if you have multiple DNS-323's, you can tell which one sent you the alert by looking at the subject line.  At least this was the case in 1.03 and I have not checked it out on 1.04 yet.

ok, you're right. I didn't check the subject-header, the name is there (shame on me...)

Hi Ardjan,

Further to mig's contribution, I found the following link useful:

  http://man-wiki.net/index.php/8:mdadm

and for starters, details of my MD device:

~ # mdadm -D /dev/md0
/dev/md0:
        Version : 00.90.01
  Creation Time : Wed Feb 13 17:11:32 2008
     Raid Level : raid1
     Array Size : 486544512 (464.01 GiB 498.22 GB)
    Device Size : 486544512 (464.01 GiB 498.22 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 0
    Persistence : Superblock is persistent

    Update Time : Wed Mar  5 00:25:27 2008
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

           UUID : db618e2e:36b479ce:7d23417b:cb48b479
         Events : 0.210985

    Number   Major   Minor   RaidDevice State
       0       8        2        0      active sync   /dev/sda2
       1       8       18        1      active sync   /dev/sdb2

Examination of /dev/sd[ab]2:

~ # mdadm -E /dev/sd[ab]2
/dev/sda2:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : db618e2e:36b479ce:7d23417b:cb48b479
  Creation Time : Wed Feb 13 17:11:32 2008
     Raid Level : raid1
    Device Size : 486544512 (464.01 GiB 498.22 GB)
     Array Size : 486544512 (464.01 GiB 498.22 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 0

    Update Time : Wed Mar  5 00:25:27 2008
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0
       Checksum : b033c662 - correct
         Events : 0.210985


      Number   Major   Minor   RaidDevice State
this     0       8        2        0      active sync   /dev/sda2

   0     0       8        2        0      active sync   /dev/sda2
   1     1       8       18        1      active sync   /dev/sdb2
/dev/sdb2:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : db618e2e:36b479ce:7d23417b:cb48b479
  Creation Time : Wed Feb 13 17:11:32 2008
     Raid Level : raid1
    Device Size : 486544512 (464.01 GiB 498.22 GB)
     Array Size : 486544512 (464.01 GiB 498.22 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 0

    Update Time : Wed Mar  5 00:25:27 2008
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0
       Checksum : b033c674 - correct
         Events : 0.210985


      Number   Major   Minor   RaidDevice State
this     1       8       18        1      active sync   /dev/sdb2

   0     0       8        2        0      active sync   /dev/sda2
   1     1       8       18        1      active sync   /dev/sdb2

If you put up your results, perhaps we can have a go at using some of other commands to trigger failure and reconstruction to see what happens.

Jaya

In my case I've formated the drives after upgrading to 1.04 and the drives still got degraded.

Can anyone experiencing the degraded light please respond with their harddrive information. Model/Make/Version/Firmware etc. Any information would help.

Ardjan wrote:

jayas wrote:

In relation to RAID 1, even when one disk goes down, the mounted shares will function normally. This is after all the core functionality provided by mirroring.

Of course it does. I just meant that also the JBOD is working normally, and that is _not_ the fact when really one drive fails.

jayas wrote:

This IMO rules out drive problem.  Would be interested to know if you get email alerts though when you have the time to set it up.

E-mail works: "Left Hard Drive Has Failed. Sincerely, your DNS-323" :-) (btw: it would be nice if it told me _which_ DNS323 it was. When there are several DNS'es (not in my case), this mail doesn't tell anything. The name and IP would be nice to know...)

jayas wrote:

Here is my equivalent excerpt (which does not have amber/white light problem) for comparision purpos:

Code:

~ # dmesg
...<snip>...
Adding 530104k swap on /dev/sda1.  Priority:-1 extents:1
Adding 530104k swap on /dev/sdb1.  Priority:-2 extents:1
MINIX-fs: mounting unchecked file system, running fsck is recommended.
ext3: No journal on filesystem on sda2
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
ext3: No journal on filesystem on sdb2
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
MINIX-fs: mounting unchecked file system, running fsck is recommended.
MINIX-fs: mounting unchecked file system, running fsck is recommended.
md: md0 stopped.
md: bind<sdb2>
md: bind<sda2>
raid1: raid set md0 active with 2 out of 2 mirrors
...<snip>...

It does not look to me like there is any difference of significance (difference even) between the two logs on startup.  Can anyone else see anything of significance?

Hmm, no mentioning of 'MINIX' in my dmesg.out, and the raid is broken due to

Code:

md: md0 stopped.
md: bind<sdb2>
md: bind<sda2>
md: kicking non-fresh sdb2 from array!
md: unbind<sdb2>
md: export_rdev(sdb2)
raid1: raid set md0 active with 1 out of 2 mirrors

According to this message, one of your drive is failure

jayas wrote:

Perhaps we need to look at what happened after this startup?  Here is mine ...

That doesn't look different than mine...
As far as I can see the DNS just kicks the partition from the raid and goes on. That explains why the JBOD keeps working. I think I have to look deeper into this...

jayas wrote:

If you get anything else reported, that could hold the clue as to what is going on.  I am quite sure though that in your case, it does not appear to be a drive problem at all.
By the way, what is your hardware revision?  I am quite sure version 1.04 firmware I downloaded was for revision B1 hardware, and I am inferring there is another version for revision A1 hardware?
Having said this, I am running the same firmware on another box with revision A1 hardware and I did it by formatting the disks using 1.03 and upgrading to 1.04 without reformatting the disks because I did not like the extra partition.  It has Seagate disks and is running A ok.

Hmm, so the drive seems to be OK. That's a relief.
My Hardware revision is A1.
I upgraded it from 1.03 to 1.04 by copying all data somewhere else, then did the upgrade. All data was still there, and no white light was seen. The white appeared some days later for the first time. I switch the drive off every night, because of the noise. Mostly I use the webpage-controls for the switch-off.
After I noticed the white led, I updated my external USB-HD with the changed data on the NAS and reformatted the drive (I wanted to change the size of the RAID1/JBOD volumes). It was ok for another few days...

Hello,

Has anyone properly recovered from the amber/white light problem?  If not, here is something you could try.

First determine which drive is having the problem.  The one on the right is /dev/sda2. and the one on the left is /dev/sdb2.  The relevant entries in dmesg will confirm this:

md: md0 stopped.
md: bind<sdb2>
md: bind<sda2>
md: kicking non-fresh sdb2 from array!
md: unbind<sdb2>
md: export_rdev(sdb2)

which in this case is /dev/sdb2.

Now TELNET/SSH to the DNS-323, and then try recovering using the following commands:

mdadm /dev/md0 -f /dev/sdb2        # signal as faulty
mdadm /dev/md0 -r /dev/sdb2        # remove from array
mdadm /dev/md0 -a /dev/sdb2        # add to the array

If you look at the status page after this, you will find that it should say that the sync operation is in progress.  When it is complete, the status page will show all is okay, but the amber/white light may not go off.  Rebooting DNS-323 gets all things back to normal with no more white/amber light.

Hope this helps.

Jaya

@ardjan - if you still have a bad drive led indication (amber/orange/white) or 'degraded' raid in
the web gui,  could you post the output of

mdadm -E /dev/sda2

and

mdadm -E /dev/sdb2

I found some documentation http://linux-raid.osdl.org/index.php/Non-fresh which describes
a "non-fresh" raid array member as a drive which is out of sync with the other(s).   The
'Events:" property, listed with the mdadm -E command, would show this status.

Hi Ardjan,

Sorry if I am asking you to repeat what you have already done, but your situation is baffling and I like to have a go at nailing it down.  Starting afresh, here is what I like you to do and report if you can:

1/  TELNET and do add the drive back to the raid thus:

  mdadm /dev/md0 -a /dev/sdb2

2/  Dump the relevant information using dmesg

3/  Wait for sync to complete and then repeat this

[All of the above should be done without rebooting the device.]

4/  If after step 3 sdb2 does not get ejected from array, reboot and look at dmesg again.

Regards,

Jaya

Hi Mig,

mig wrote:

The /dev/sdb2 partition can not join the raid because it does not have a RAID (md) superblock.

I am not sure if this is a entirely correct given it is possible to add a blank disk to an existing RAID array, and this happens without loss of data.

From memory, I recall I had to fdisk, mke2fs and then use mdadm to add to the array.  Let me verify the procedure and post it here.  In my case I did not want the WEB GUI do it because I wanted to partition the disk using 1.03 scheme (with only two partitions) instead of 1.04 scheme which has three (and out of sequence) partitions.

Regards,

Jaya

Edit PS:  In Ardjan's case, the add to RAID seems to work, and it proceeds to sync, but somehow after sync is complete, it drops out again.

Last edited by jayas (2008-03-12 09:27:11)

jayas wrote:

I am not sure if this is a entirely correct given it is possible to add a blank disk to an existing RAID array, and this happens without loss of data.

You're right, I could be mistaken.  I guess it depends on understanding where in the mdadm
process of  -add | -create | -assemble the md superblock gets created and saved.  The other thing
that complicates this, is Ardjan has a JBOD partition, too.  And I'm not exactly clear how
that JBOD configuration is setup on the disks along with a RAID1.

Last edited by mig (2008-03-12 17:33:53)

i am having the same problem today. amber light on but all data still accessible.

This is the status shown in web interface:

HARD DRIVE INFO :

Total Drive(s):     2
Volume Name:     Volume_1
Volume Type:     RAID 1
Sync Time Remaining:     Degraded
Total Hard Drive Capacity:     394227 MB
Used Space:     154619 MB
Unused Space:     239607 MB

Volume Name:     Volume_2
Volume Type:     JBOD
Total Hard Drive Capacity:     193951 MB
Used Space:     84568 MB
Unused Space:     109382 MB

Here is output of the commands advise above:

/ # mdadm -E /dev/sda2
/dev/sda2:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : 393a5bca:511f540a:1ac12ea8:4a1abb7e
  Creation Time : Tue Feb 26 07:51:58 2008
     Raid Level : raid1
    Device Size : 391126400 (373.01 GiB 400.51 GB)
     Array Size : 391126400 (373.01 GiB 400.51 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 0

    Update Time : Thu Mar 13 07:11:34 2008
          State : clean
Active Devices : 1
Working Devices : 2
Failed Devices : 1
  Spare Devices : 1
       Checksum : 3f9414dd - correct
         Events : 0.2279930


      Number   Major   Minor   RaidDevice State
this     0       8        2        0      active sync   /dev/sda2

   0     0       8        2        0      active sync   /dev/sda2
   1     1       0        0        1      faulty removed
   2     2       8       18        1      spare   /dev/sdb2

/ # mdadm -E /dev/sdb2
/dev/sdb2:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : 393a5bca:511f540a:1ac12ea8:4a1abb7e
  Creation Time : Tue Feb 26 07:51:58 2008
     Raid Level : raid1
    Device Size : 391126400 (373.01 GiB 400.51 GB)
     Array Size : 391126400 (373.01 GiB 400.51 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 0

    Update Time : Thu Mar 13 07:13:26 2008
          State : clean
Active Devices : 1
Working Devices : 2
Failed Devices : 1
  Spare Devices : 1
       Checksum : 3f9417d0 - correct
         Events : 0.2280244


      Number   Major   Minor   RaidDevice State
this     2       8       18        2      spare   /dev/sdb2

   0     0       8        2        0      active sync   /dev/sda2
   1     1       0        0        1      faulty removed
   2     2       8       18        2      spare   /dev/sdb2

/ # cat /proc/partitions
major minor  #blocks  name

   7     0       5508 loop0
  31     0         64 mtdblock0
  31     1         64 mtdblock1
  31     2       1536 mtdblock2
  31     3       6336 mtdblock3
  31     4        192 mtdblock4
   9     0  391126400 md0
   8     0  488386584 sda
   8     1     530113 sda1
   8     2  391126522 sda2
   8     3   96213285 sda3
   8     4     514080 sda4
   8    16  488386584 sdb
   8    17     530113 sdb1
   8    18  391126522 sdb2
   8    19   96213285 sdb3
   8    20     514080 sdb4
   9     1  192426368 md1

I have just executed below:

mdadm /dev/md0 -f /dev/sdb2        # signal as faulty
mdadm /dev/md0 -r /dev/sdb2        # remove from array
mdadm /dev/md0 -a /dev/sdb2        # add to the array

Now I see below message from Web Interface:

The RAID volume is synchronizing now. Please wait for 6294.7 minute(s).

Refresh webpage and I got this:

The RAID volume is synchronizing now. Please wait for 6490.4 minute(s).

Why the minutes decreasing but will increase again, is this normal ?

The RAID volume is synchronizing now. Please wait for 1766.3 minute(s).

The RAID volume is synchronizing now. Please wait for 6476.3 minute(s).

Increased again

I have attached dmesg.out after turned to amber light

Last edited by philipcs (2008-03-13 18:15:35)

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Attachments:
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