Recommendations for clean install of ZFS

[mstan]

I have recently done clean installs of Yosemite and Sierra and need to do a clean install of ZFS; also want to create a new pool, this time a 4 x 4TB raidz pool with 12TB useable. I need recommendations on optimal version for both OS’ and optimal settings for the pool.

My hardware:

Mac Pro 4,1 —> 5,1
32 GB ecc ram
4 x 4TB internal HDDs
3 internal SSDs for mac os’

Thanks.

[lundman]

As for creating the pool, we still recommend using:

sudo zpool create -f -o ashift=12 -O compression=lz4 -O casesensitivity=insensitive -O atime=off -O normalization=formD

[mstan]

Ok. Thanks for confirming that. But what current version is most compatible? I last used 1.52 on both Yosemite and Sierra and it was very stable if not smooth or particularly fast. OTOH, 1.81 crashed Yosemite.

[lundman]

There shouldn't be a problem with 1.8.1, but if there is, we need to know about it

[mstan]

I just repeated install of 1.81 on Yosemite with the same hard fault at restart. I used your recovery procedure this time and that worked. So now I do I have the log and will provide it to you.

[mstan]

Here is the crash log from the second attempt to install 1.81. Looks like Carbon Copy Cloner caused the panic. Really?


Process: update_dyld_shared_cache [937]
Path: /Volumes/VOLUME/usr/bin/update_dyld_shared_cache
Identifier: update_dyld_shared_cache
Version: ???
Code Type: X86-64 (Native)
Parent Process: com.bombich.ccchelper [688]
Responsible: com.bombich.ccchelper [688]
User ID: 0

Date/Time: 2018-10-25 18:22:19.930 -0700
OS Version: Mac OS X 10.10.5 (14F2511)
Report Version: 11
Anonymous UUID: 02D62F32-2B7E-AE8B-7804-1CD22827E5DA


Time Awake Since Boot: 2700 seconds

Crashed Thread: 0

Exception Type: EXC_CRASH (Code Signature Invalid)
Exception Codes: 0x0000000000000000, 0x0000000000000000

kernel messages:

VM Regions Near 0 (cr2):
-->
mapped file 000000010f4e9000-000000010f56b000 [ 520K] r-x/rwx SM=COW /Volumes/VOLUME/usr/bin/update_dyld_shared_cache

Thread 0 Crashed:
0 dyld 0x00007fff6b01d000 _dyld_start + 0

Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x0000000000000000 rbx: 0x0000000000000000 rcx: 0x0000000000000000 rdx: 0x0000000000000000
rdi: 0x0000000000000000 rsi: 0x0000000000000000 rbp: 0x0000000000000000 rsp: 0x00007fff50716e40
r8: 0x0000000000000000 r9: 0x0000000000000000 r10: 0x0000000000000000 r11: 0x0000000000000000
r12: 0x0000000000000000 r13: 0x0000000000000000 r14: 0x0000000000000000 r15: 0x0000000000000000
rip: 0x00007fff6b01d000 rfl: 0x0000000000000200 cr2: 0x0000000000000000

Logical CPU: 0
Error Code: 0x00000000
Trap Number: 0


Binary Images:
0x7fff6b01c000 - 0x7fff6b05292f dyld (???) <3C068A0D-69D5-3AD6-86D9-6261D3B1564E> /usr/lib/dyld

External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 67515
thread_create: 0
thread_set_state: 0

VM Region Summary:
ReadOnly portion of Libraries: Total=300K resident=300K(100%) swapped_out_or_unallocated=0K(0%)
Writable regions: Total=8420K written=0K(0%) resident=12K(0%) swapped_out=0K(0%) unallocated=8408K(100%)

REGION TYPE VIRTUAL
=========== =======
STACK GUARD 56.0M
Stack 8192K
VM_ALLOCATE 8K
VM_ALLOCATE (reserved) 4K reserved VM address space (unallocated)
__DATA 228K
__LINKEDIT 80K
__TEXT 220K
mapped file 836K
shared memory 4K
=========== =======
TOTAL 65.3M
TOTAL, minus reserved VM space 65.3M



System Profile:
Network Service: Ethernet 1, Ethernet, en0
Bluetooth: Version 4.3.6f4 17916, 3 services, 27 devices, 1 incoming serial ports
PCI Card: ATI Radeon HD 5770, Display Controller, Slot-1
PCI Card: SeriTek/2ME4 v. 6.0.1, Oct 18 2014, 13:32:34, ata, Slot-2
PCI Card: pci1b21,1242, USB eXtensible Host Controller, Slot-3
PCI Card: pci1b21,612, AHCI Controller, Slot-4
Thunderbolt Bus:
FireWire Device: built-in_hub, Up to 800 Mb/sec
Memory Module: DIMM 1, 16 GB, DDR3 ECC, 1066 MHz, 0x0000, -
Memory Module: DIMM 2, 16 GB, DDR3 ECC, 1066 MHz, 0x0000, -
USB Device: SuperMulti RW
USB Device: Duet USB
USB Device: SABRENT
USB Device: BRCM2046 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Eye-One display
USB Device: USB Receiver
Serial ATA Device: Hitachi HDE721010SLA330, 1 TB
Serial ATA Device: LaCie d2Next-Quadra, 1 TB
Serial ATA Device: INTEL SSDSA2CW120G3, 120.03 GB
Serial ATA Device: PNY CS2211 240GB SSD, 240.06 GB
Serial ATA Device: Hitachi HDS724040ALE640, 4 TB
Serial ATA Device: HGST HDS724040ALE640, 4 TB
Serial ATA Device: HGST HDS5C4040ALE630, 4 TB
Serial ATA Device: HGST HDS724040ALE640, 4 TB
Serial ATA Device: Samsung SSD 840 EVO 250GB, 250.06 GB
Model: MacPro5,1, BootROM MP51.007F.B03, 4 processors, Quad-Core Intel Xeon, 2.66 GHz, 32 GB, SMC 1.39f5
Graphics: ATI Radeon HD 5770, ATI Radeon HD 5770, PCIe, 1024 MB

[mstan]

That is some kind of special access app that gives CCC special elevated privileges to do clones of the OS. Never encountered a problem with CCC before.

[lundman]

That doesn't look like a panic report, just a core dump - so it might be unrelated.

[mstan]

That doesn't look like a panic report, just a core dump - so it might be unrelated.

Yeah, I was wondering about. I don’t see anything that is labeled panic report. Where specifically is it in Yosemite?

[mstan]

BTW, I just successfully installed 1.81 in Sierra and it works but for one a problem with Carbon Copy Cloner. It won't back up to the ZFS pool; gives error message "The task failed because there is not a disk image at the location specified for the destination disk." CCC also list the ZFS pool as an "image volume"; pools created under 1.52 didn't have this problem under CCC. I have sent a report to CCC. Do you have any insight into this?