What about doing it without the partitions? I thought that it was best to use the whole disk anyway.

sudo zpool create -o ashift=12 Data raidz2 disk4 disk5 disk6 disk7 disk8 disk9 disk10 spare disk11


Gregg

On 2/24/2014 11:09 AM, m...@saudette.net wrote:
*Summary:*
*
*
I'm trying to create a pool with my iStoragePro enclosure with 8x2TB connected to an ATTO ExpressSAS R380 RAID card, but it always fails with an I/O error:

sudo zpool create -o ashift=12 Data raidz2 disk4s2 disk5s2 disk6s2 disk7s2 disk8s2 disk9s2 disk10s2 spare disk11s2
"cannot create 'Data': I/O error"

Could be related to this old topic <https://groups.google.com/forum/#%21topic/zfs-macos/kZQTiICDZR0> and this closed (invalid) bug <https://code.google.com/p/maczfs/issues/detail?id=107>.


*Details:*

I'm running MacZFS-74.3.3 on Mountain Lion 10.8.5.
I've created a few other pools on this system already using internal drives, so I know my install is good.

The hardware is a MacPro 2,1 8-core, 32GB RAM with an iStoragePro enclosure with 8x2TB connected to an ATTO ExpressSAS R380 RAID card. I've been running this setup as a RAID-6 for over a year without a problem.

I wanted to convert to a RAIDZ2, so I switched the enclosure to JBOD. I can see all 8 disk and format them individually with Disk Utility, so everything is working there, but if I try to create a pool I get "cannot create 'Data': I/O error"

sudo zpool create -o ashift=12 Data raidz2 disk4s2 disk5s2 disk6s2 disk7s2 disk8s2 disk9s2 disk10s2 spare disk11s2
"cannot create 'Data': I/O error"

I've tried the following, without success...

  * adding /dev/ before all the disk
  * creating a pool with just a single disk
  * creating a mirror with just two of the disks
  * not using the ashift parameter
  * picking a different pool name (tank, puddle, etc)


Anyone have any ideas?

Regards,
Steve


MacPro:~ bump$ diskutil list
/dev/disk0
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *120.0 GB   disk0
   1:          EFI                         209.7 MB   disk0s1
   2:    Apple_HFS Macintosh HD            119.2 GB   disk0s2
/dev/disk1
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *3.0 TB   disk1
   1:          EFI                         209.7 MB   disk1s1
   2:          ZFS pool                    3.0 TB     disk1s2
/dev/disk2
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *3.0 TB   disk2
   1:          EFI                         209.7 MB   disk2s1
   2:          ZFS pool                    3.0 TB     disk2s2
/dev/disk3
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *3.0 TB   disk3
   1:          EFI                         209.7 MB   disk3s1
   2:          ZFS pool                    3.0 TB     disk3s2
/dev/disk4
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *2.0 TB   disk4
   1:          EFI                         314.6 MB   disk4s1
   2:          ZFS                         2.0 TB     disk4s2
/dev/disk5
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *2.0 TB   disk5
   1:          EFI                         314.6 MB   disk5s1
   2:          ZFS                         2.0 TB     disk5s2
/dev/disk6
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *2.0 TB   disk6
   1:          EFI                         314.6 MB   disk6s1
   2:          ZFS                         2.0 TB     disk6s2
/dev/disk7
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *2.0 TB   disk7
   1:          EFI                         314.6 MB   disk7s1
   2:          ZFS                         2.0 TB     disk7s2
/dev/disk8
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *2.0 TB   disk8
   1:          EFI                         314.6 MB   disk8s1
   2:          ZFS                         2.0 TB     disk8s2
/dev/disk9
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *2.0 TB   disk9
   1:          EFI                         314.6 MB   disk9s1
   2:          ZFS                         2.0 TB     disk9s2
/dev/disk10
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *2.0 TB   disk10
   1:          EFI                         314.6 MB   disk10s1
   2:          ZFS                         2.0 TB     disk10s2
/dev/disk11
   #:         TYPE NAME                    SIZE IDENTIFIER
   0:  GUID_partition_scheme                        *2.0 TB   disk11
   1:          EFI                         314.6 MB   disk11s1
   2:          ZFS                         2.0 TB     disk11s2


MacPro:~ bump$ zpool status -v
  pool: pool
 state: ONLINE
 scrub: none requested
config:

NAME        STATE     READ WRITE CKSUM
pool        ONLINE       0     0     0
 disk2s2   ONLINE       0     0     0
 disk3s2   ONLINE       0     0     0
 disk1s2   ONLINE       0     0     0

errors: No known data errors

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