External Disk Problem

External Disk Problem

Postby jcmarchier » Wed Nov 14, 2012 11:04 am

Hi,
First I want to congratulate for this great firmware. It gave a new life to my "old" NS2.
After some tests, I tried to attach to the front USB port an external disk enclosure, populated with 3 physicals disks (can be considered like a super USb hub).
When attached on my PC's (Linux or Windows), all the 3 physicals disks are mounted and accesible.
On the NS2, with the latest firmware (FVDW-SL-13), I can only see the first physical disk, which is correctly mounted and shared.
This is what dmesg says :

usb 1-1: new high speed USB device number 2 using orion-ehci
usb 1-1: New USB device found, idVendor=152d, idProduct=2339
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=5
usb 1-1: Product: USB to ATA/ATAPI Bridge
usb 1-1: Manufacturer: JMicron
usb 1-1: SerialNumber: 152D20339006
scsi2 : usb-storage 1-1:1.0
scsi 2:0:0:0: Direct-Access ST320005 42AS PQ: 0 ANSI: 5
sd 2:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB)
sd 2:0:0:0: [sdb] Write Protect is off
sd 2:0:0:0: [sdb] Mode Sense: 3c 00 00 00
sd 2:0:0:0: [sdb] Assuming drive cache: write through
sd 2:0:0:0: [sdb] Assuming drive cache: write through
sdb: sdb1
sd 2:0:0:0: [sdb] Assuming drive cache: write through
sd 2:0:0:0: [sdb] Attached SCSI disk
EXT3-fs: barriers not enabled
kjournald starting. Commit interval 5 seconds
EXT3-fs (sdb1): using internal journal
EXT3-fs (sdb1): mounted filesystem with ordered data mode


Can you please help me?
Thank you
jcmarchier
 
Posts: 2
Joined: Sun Sep 09, 2012 7:38 pm

Re: External Disk Problem

Postby fvdw » Wed Nov 14, 2012 4:15 pm

So you use a: USB to ATA/ATAPI bridge with 3 disks. I don't know if it needs a special driver that must be compiled with the kernel. But because it is recognized by the kernel I suppose it loads the corresponding driver. If it then supports more then 1 disk and don't know. I use often an usb->sata device to connect a harddisk but that only has one disk.

What could you do

connect via ssh using for instance Putty and give the command
Code: Select all
lsusb -t

This will list which device are found by the usb auto-detect routines . That will learn us if the disk are found at all.

Did you test to switch the disks ?,
I mean disconnecting the one thats now on the first port and then connection another one. If then all disk are recognized it must be something with the driver of this usb to ATA bridge driver not supporting multiple disks and that case I do not have no solution for you unfortunate. :dontknow
If the other disks are not recognized when connected to first port then it could because they have a label (name) with spaces or characters like / or ' & and so on . If so this might break the php scripts used in the firmware. Only use letters and numbers without spaces for label of the disks. Adapting that might then solve the issue

Another cause may be the format of the disks, only fat, fat32, ext2/ext3 and ntfs are supported for automount

Last resort try to use an usb hub to connect more then 1 disk that seems to work ok
fvdw
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Location: Netherlands

Re: External Disk Problem

Postby fvdw » Wed Nov 14, 2012 4:30 pm

I made an edit of the above post
fvdw
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Location: Netherlands

Re: External Disk Problem

Postby jcmarchier » Wed Nov 14, 2012 4:38 pm

Thank you for your quick answer. I will switch the disk as described and also check the labels (maybe the 2 other drives do not have label at all!!)
And i confirm that a "traditional" usb hub works, but this particular enclosure has the great advantage of only one electric cable for up to 4 internal Sata drives.
I will tell you the succes (or not... :sob )
jcmarchier
 
Posts: 2
Joined: Sun Sep 09, 2012 7:38 pm


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