[OmniOS-discuss] trouble with ashift and 4k blocks

[Alexander Lesle]

Hello Doug Hughes and List,

I use the same HGST drive and they have all 4 TB capacity in my pools.

,-----[  ]-----
|
| AVAILABLE DISK SELECTIONS:
|        0. c2t0d0 <VMware-Virtualdisk-1.0 cyl 5012 alt 2 hd 224 sec 56>
|           /pci at 0,0/pci15ad,1976 at 10/sd at 0,0
|        1. c2t1d0 <VMware-Virtualdisk-1.0 cyl 5012 alt 2 hd 224 sec 56>
|           /pci at 0,0/pci15ad,1976 at 10/sd at 1,0
|        2. c4t5000CCA23DCCC6BCd0 <ATA-HGST HDS724040AL-A580-3.64TB>
|           /scsi_vhci/disk at g5000cca23dccc6bc
|        3. c4t5000CCA23DCD21A4d0 <ATA-HGST HDS724040AL-A580-3.64TB>
|           /scsi_vhci/disk at g5000cca23dcd21a4
|        4. c4t5000CCA23DCD25A1d0 <ATA-HGST HDS724040AL-A580-3.64TB>
|           /scsi_vhci/disk at g5000cca23dcd25a1
| Specify disk (enter its number):
|
`-------------------

When you wrote only one item in sd.conf you must write a ; and not ,
at last letter.
But this HDD you must not list in sd.conf it will present ashift=12.

,-----[  ]-----
|
| root at aio:/root# zdb -C
| pool_aio:
|     version: 5000
|     name: 'pool_aio'
|     state: 0
|     txg: 5222458
|     pool_guid: 11088269185580178933
|     hostid: 720590413
|     hostname: 'aio'
|     vdev_children: 1
|     vdev_tree:
|         type: 'root'
|         id: 0
|         guid: 11088269185580178933
|         children[0]:
|             type: 'mirror'
|             id: 0
|             guid: 1388041250297859353
|             metaslab_array: 33
|             metaslab_shift: 35
|             ashift: 12
|             asize: 4000773570560
|             is_log: 0
|             create_txg: 4
|             children[0]:
|                 type: 'disk'
|                 id: 0
|                 guid: 18178429901005250887
|                 path: '/dev/dsk/c4t5000CCA23DCCC6BCd0s0'
|                 devid: 'id1,sd at n5000cca23dccc6bc/a'
|                 phys_path: '/scsi_vhci/disk at g5000cca23dccc6bc:a'
|                 whole_disk: 1
|                 DTL: 45
|                 create_txg: 4
|             children[1]:
|                 type: 'disk'
|                 id: 1
|                 guid: 12635800974590752762
|                 path: '/dev/dsk/c4t5000CCA23DCD21A4d0s0'
|                 devid: 'id1,sd at n5000cca23dcd21a4/a'
|                 phys_path: '/scsi_vhci/disk at g5000cca23dcd21a4:a'
|                 whole_disk: 1
|                 DTL: 43
|                 create_txg: 4
|             children[2]:
|                 type: 'disk'
|                 id: 2
|                 guid: 15588560262687738746
|                 path: '/dev/dsk/c4t5000CCA23DCD25A1d0s0'
|                 devid: 'id1,sd at n5000cca23dcd25a1/a'
|                 phys_path: '/scsi_vhci/disk at g5000cca23dcd25a1:a'
|                 whole_disk: 1
|                 DTL: 41
|                 create_txg: 4
|     features_for_read:
|         com.delphix:hole_birth
|         com.delphix:embedded_data
|
`-------------------
,-----[  ]-----
|
| root at aio:/root# zdb | egrep 'ashift| name'
|     name: 'pool_aio'
|             ashift: 12
|     name: 'rpool'
|             ashift: 9
|
`-------------------

I think its a hardware issue.
Test this what Michael Talbott wrote.

On August, 22 2015, 23:49 <Doug Hughes> wrote in [1]:

> I'm following this page: 
> http://wiki.illumos.org/display/illumos/ZFS+and+Advanced+Format+disks

> but I just can't get my HGST 4K disks to get the 4TB capacity in the zpool.

> I've cross referenced and verified multiple times and this should work
> for sd_config_list=

>      "ATA     HGST HDS724040AL", "physical-block-size:4096",
-- 
Best Regards
Alexander
August, 23 2015
........
[1] mid:55D8EE55.7090708 at will.to
........