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

[Doug Hughes]

I do suspect that there is a problem with the card and the 2TB/4TB. 
Still, shouldn't my sd.conf entries result in zdb showing ashift=12 and 
mdb showing block size 0x1000?

(the comma issue, in answer to other person, is ok. This is not the last 
entry in sd.conf)


On 8/23/2015 6:20 AM, Alexander Lesle wrote:
> 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",