[OpenIndiana-discuss] Using large (3-4 TB) USB disks for backups

[Reginald Beardsley]

A bit more data. I concluded after my initial, rather lengthy attempt at getting this to work that there was some hardware specific issue that resulted in not being able to set un_phy_blocksize=0x1000 & ashift=12.  I'd be delighted if that were not the case, but happy to buy a "known to work" disk.  So I'm looking for an HGST disk per previous post.  Other suggestions welcome.


# cfgadm -v -c unconfigure usb9/3
Unconfigure the device: /devices/pci at 0,0/pci10de,cb79 at 4,1:3
This operation will suspend activity on the USB device
Continue (yes/no)? yes
cfgadm: Hardware specific failure: Cannot issue devctl to ap_id: /devices/pci at 0,0/pci10de,cb79 at 4,1:3
# cfgadm -v -c disconnect usb9/3
Disconnect the device: /devices/pci at 0,0/pci10de,cb79 at 4,1:3
This operation will suspend activity on the USB device
Continue (yes/no)? yes
cfgadm: Hardware specific failure: Cannot issue devctl to ap_id: /devices/pci at 0,0/pci10de,cb79 at 4,1:3

--------------------------------------------
On Wed, 3/26/14, Reginald Beardsley <pulaskite at yahoo.com> wrote:

 Subject: Re: [OpenIndiana-discuss] Using large (3-4 TB) USB disks for backups
 To: "Discussion list for OpenIndiana" <openindiana-discuss at openindiana.org>
 Date: Wednesday, March 26, 2014, 8:43 AM
 
 Here's what happens w/ oi151a8. 
 I was using a7 the last time.  The physical size
 doesn't get set correctly w/ the result that ashift=9.
 
 
 # echo "::walk sd_state | ::grep '.!=0' | ::print struct
 sd_lun un_sd |::print struct scsi_device sd_inq | ::print
 struct scsi_inquiry inq_vid inq_pid" | mdb -k
 inq_vid = [ "Toshiba " ]
 inq_pid = [ "External USB 3.0" ]
 
 # echo ::sd_state | mdb -k | egrep '(^un|_blocksize)'
 un 3: ffffff0148254cc0
     un_sys_blocksize = 0x200
     un_tgt_blocksize = 0x1000
     un_phy_blocksize = 0x200
     un_f_tgt_blocksize_is_valid = 0x1
 
 Add entry in sd.conf:
 
 sd-config-list = "*Toshiba*" ,"physical-block-size:4096";
 
 # update_drv -vf sd
 Cannot unload module: sd
 Will be unloaded upon reboot.
 Forcing update of sd.conf.
 sd.conf updated in the kernel.
 
 # echo ::sd_state | mdb -k | egrep '(^un|_blocksize)'
 un 3: ffffff0148254cc0
     un_sys_blocksize = 0x200
     un_tgt_blocksize = 0x1000
     un_phy_blocksize = 0x200
     un_f_tgt_blocksize_is_valid = 0x1
 
 Rebooted system
 
 # echo ::sd_state | mdb -k | egrep '(^un|_blocksize)'
 un 3: ffffff0140e28d00
     un_sys_blocksize = 0x1000
     un_tgt_blocksize = 0x1000
     un_phy_blocksize = 0x200
     un_f_tgt_blocksize_is_valid = 0x1
 
  Note sys_blocksize got set, but not phys_blocksize.
 
 # zpool create tosh_pool c0t0d0p0
 # zdb | egrep 'ashift| name'
     name: 'rpool'
             ashift: 9
     name: 'tosh_pool'
             ashift: 9
 #
 
 --------------------------------------------
 On Tue, 3/25/14, Andrew Gabriel <illumos at cucumber.demon.co.uk>
 wrote:
 
  Subject: Re: [OpenIndiana-discuss] Using large (3-4 TB) USB
 disks for backups
  To: openindiana-discuss at openindiana.org
  Date: Tuesday, March 25, 2014, 11:31 PM
  
  On 26/03/2014 03:07, Reginald
  Beardsley wrote:
  > Has anyone been able to  ZFS format a 3-4 TB 
  USB drive w/ OI so that it worked properly?  I was
  defeated by a 3 TB Toshiba drive, but am hoping some other
  make might work  w/o generating misaligned messages.
  
  It helps if you paste in the terminal window showing the
  exact commands you issued and their responses.
  
  -- Andrew
  
  
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