[OpenIndiana-discuss] HP Proliant Microserver N54L Upgrade

[Andrew Gabriel]

Your drive is claiming to be 4kB/sector, which would increase the max 
drive size up to 16TB, if the 12 byte SCSI command limitation applies 
(which is just my speculation).

So this would indicate a work-a-round for the 2TB limit is to use a 
drive which reports a real 4k sector size.


Reginald Beardsley via openindiana-discuss wrote:
> I got a 3 TB Toshiba Canvio USB drive to format using 151a7 on an N40L.
>
> >From my notes:
>
> "The key to formatting the 3 TB drive was to use "format -e", supply LBA pseudo geometry and create an EFI label.  NB must run fdisk from within format"
>
> However, it's not clear this was the USB drive rather than a bare 3 TB SATA drive.  I was battling several things and a few years later it's not as clear as it seemed when I wrote it.  I vividly recall I had a lot of trouble getting it to work properly, and considered just giving the drive to a friend to use on his Mac.
>
> But yes, it can be made to work.  I use it to save incrementals from  my backup server.
>
> The following  is w/ the drive imported to my 151a8 internet access host.
>
>  # zpool get all tosh_pool
> NAME       PROPERTY               VALUE                  SOURCE
> tosh_pool  size                   2.72T                  -
> tosh_pool  capacity               49%                    -
> tosh_pool  altroot                -                      default
> tosh_pool  health                 ONLINE                 -
> tosh_pool  guid                   556785976751203449     default
> tosh_pool  version                -                      default
> tosh_pool  bootfs                 -                      default
> tosh_pool  delegation             on                     default
> tosh_pool  autoreplace            off                    default
> tosh_pool  cachefile              -                      default
> tosh_pool  failmode               wait                   default
> tosh_pool  listsnapshots          off                    default
> tosh_pool  autoexpand             off                    default
> tosh_pool  dedupditto             0                      default
> tosh_pool  dedupratio             1.00x                  -
> tosh_pool  free                   1.36T                  -
> tosh_pool  allocated              1.36T                  -
> tosh_pool  readonly               off                    -
> tosh_pool  comment                -                      default
> tosh_pool  expandsize             0                      -
> tosh_pool  freeing                0                      default
> tosh_pool  feature at async_destroy  enabled                local
> tosh_pool  feature at empty_bpobj    enabled                local
> tosh_pool  feature at lz4_compress   disabled               local
>
>
> and:
>
> format> verify
>
> Volume name = <        >
> ascii name  = <Toshiba-External USB 3.0-3704-2.73TB>
> bytes/sector	=  4096
> sectors = 732566645
> accessible sectors = 732566640
> Part      Tag    Flag     First Sector         Size         Last Sector
>   0 unassigned    wm                 0           0               0    
>   1 unassigned    wm                 0           0               0    
>   2 unassigned    wm                 0           0               0    
>   3 unassigned    wm                 0           0               0    
>   4 unassigned    wm                 0           0               0    
>   5 unassigned    wm                 0           0               0    
>   6 unassigned    wm                 0           0               0    
>   7 unassigned    wm                 0           0               0    
>   8 unassigned    wm                 0           0               0    
>
>
> Which looks wrong, so I'm not sure what's going on.  I had loads of fun w/ the sector alignment.  You should look at the ZFS pages.  Klimov and I tried to document some of this stuff.  George Wilson's writeup proved quite important, so make sure you read that also.
>
> http://wiki.illumos.org/display/illumos/ZFS+and+Advanced+Format+disks
>
> I did this on the N40L which is powered down at the moment, but there is probably more info on that.  The notes quoted above are from my log book.
>
> Reg
>
> --------------------------------------------
> On Mon, 2/16/15, Andrew Gabriel <illumos at cucumber.demon.co.uk> wrote:
>
>  Subject: Re: [OpenIndiana-discuss] HP Proliant Microserver N54L Upgrade
>  To: "Discussion list for OpenIndiana" <openindiana-discuss at openindiana.org>
>  Date: Monday, February 16, 2015, 5:20 AM
>  
>  Marion Hakanson wrote:
>  > Has anyone out there actually got a drive > 2TB
>  working via USB on
>  > an illumos distribution?  My attempts so far have
>  failed (oi151a7, oi151a9,
>  > and XStreamOS), with my 3TB drive in a USB-SATA
>  enclosure appearing as
>  > a 2TB drive.  The same drive/enclosure works
>  perfectly when attached
>  > to MacOS-X via USB, and the same drive/enclosure works
>  fine when attached
>  > by its eSATA connection to my illumos-based systems.
>  >
>  > https://www.mail-archive.com/discuss@lists.illumos.org.email.enqueue.archive.li
>  > stbox.com/msg00499.html
>  [2nd attempt - first vanished into a black hole]
>  
>  I had a quick look through scsa2usb.c (not that it's an area
>  I know), 
>  and I can only see it using Group 5 (12 byte) SCSI commands.
>  This will 
>  limit the addressing to 2^32 blocks, which is 2TB for a
>  512byte/sector disk.
>  
>  So if I'm right, this is a limitation of USB-connected
>  drives on Illumos.
>  
>  -- 
>  Andrew
>  
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