bermudabob
Posts: 2
Joined: Mon Nov 26, 2012 3:41 pm

Mounting a Drobo

Fri Mar 01, 2013 8:15 pm

Hi,
I've got my Pi all set up and want to plug in my Drobo drive. It presents itself as a single hard drive (currently formatted to Mac OS extended).

I've tried plugging it in and typing 'tail -f /var/log/messages' to see what shows up, but nothing appears.

Is there anything I need to do to mount this format of drive on the Pi?

Cheers,

Rob

User avatar
lokErik
Posts: 8
Joined: Tue Jul 24, 2012 9:40 pm
Location: Sweden

Re: Mounting a Drobo

Fri Mar 01, 2013 11:49 pm

I'm guessing you are in text-console, if you type dmesg you should be seeing a lot of information, and at the end you'd probably will see some like.

[timestamp] [sdc] 4030464 512-byte logical blocks: (2.06 GB/1.92 GiB)
[timestamp] [sdc] Write Protect is off

....
[sdc] (Is the device 'name' for mounting)

Not exactly like this, but somewhat similar, and that would be a confirmation of PI has detected your driver and addressed it.

To mount it, if it doesn't automatically is. Use the 'mount' command, for some extra information, is presented in 'man mount'.

As for an example. 'sudo mount -t hfsplus -o rw,force /dev/sdc /mnt'

Hope it's at any help, Cheers Christer.

bermudabob
Posts: 2
Joined: Mon Nov 26, 2012 3:41 pm

Re: Mounting a Drobo

Sat Mar 02, 2013 11:13 am

Thanks for that. Something else has happened now...

I turned the Pi on this morning to have a play with it and realised I'd forgotten to unplug the drobo from it. I noticed that the boot up text detected it as a Very Big Device. The drobo presents itself as an 18TB disk drive (its not, but thats its maximum capacity if I had lots of 4TB disks in it).
when I kicked off the File manager the drobo seemed to be there under the heading of '18 TB Filesystem'. 'Great!' I thought and clicked on it - only to get the error message:
'Error mounting: mount /dev/sda2 is not a valid block device'

So, I did some googling and tried:
'fdisk -l' to list the devices attached, but it didn't show up in the list.

I then thought that maybe it wasn't actually mounted and tried:

'mount -t hfs /dev/sda2 /mnt' but that can up with the same error. I also tried with hfsplus.

Being a veritable newbie to linux, I'm reaching the end of my knowledge... I'm probably missing something fundamental. I'm hoping that its not that the disk format is incompatible...

Rob

User avatar
lokErik
Posts: 8
Joined: Tue Jul 24, 2012 9:40 pm
Location: Sweden

Re: Mounting a Drobo

Sat Mar 02, 2013 10:40 pm

So the volume of your device is presenting itself wrong, did you manage to mount it anytime or did you get the error the very first time.

I would recommend you to unplug it and then replug it, at the same time you have an shell up and do an dmesg before and after to check it finds it correctly, and that it ain't any problem with the disk itself. E.g Slow link, and so on.

Code: Select all

[  605.240060] usb 1-4: new high-speed USB device number 3 using ehci_hcd
[  605.451569] Initializing USB Mass Storage driver...
[  605.451829] scsi2 : usb-storage 1-4:1.0
[  605.452041] usbcore: registered new interface driver usb-storage
[  605.452046] USB Mass Storage support registered.
[  606.491173] scsi 2:0:0:0: Direct-Access     Kingston DT 100 G2        PMAP PQ: 0 ANSI: 0 CCS
[  607.417278] sd 2:0:0:0: [sdb] 7819264 512-byte logical blocks: (4.00 GB/3.72 GiB)
[  607.419397] sd 2:0:0:0: [sdb] Write Protect is off
[  607.419405] sd 2:0:0:0: [sdb] Mode Sense: 03 41 00 00
[  607.421520] sd 2:0:0:0: [sdb] No Caching mode page present
[  607.421528] sd 2:0:0:0: [sdb] Assuming drive cache: write through
[  607.429398] sd 2:0:0:0: [sdb] No Caching mode page present
[  607.429406] sd 2:0:0:0: [sdb] Assuming drive cache: write through
[  607.454502]  sdb:
[  607.460518] sd 2:0:0:0: [sdb] No Caching mode page present
[  607.460530] sd 2:0:0:0: [sdb] Assuming drive cache: write through
[  607.460537] sd 2:0:0:0: [sdb] Attached SCSI removable disk
It should be presenting in some similar way, but some small deferences cause I'm currently using Arch.

Hope it solves, other-way just write again and we take an further look at it.

Cheers Christer

smilingburgers
Posts: 1
Joined: Sun Dec 15, 2013 4:32 am

Re: Mounting a Drobo

Sun Dec 15, 2013 4:35 am

Can I mount my drobo to my Pi so that it is used for sick beard AND have it mounted to my mac so that I can use it for Plex?

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