This post has been replaced by a newer one.
For future reference, this is the slocum server, which I use for various jails and services:
$ gpart show => 34 5860533101 ada0 GPT (2.7T) 34 94 1 freebsd-boot (47k) 128 4194304 2 freebsd-swap (2.0G) 4194432 5851054080 3 freebsd-zfs (2.7T) 5855248512 5284623 - free - (2.5G) => 34 5860533101 ada1 GPT (2.7T) 34 94 1 freebsd-boot (47k) 128 4194304 2 freebsd-swap (2.0G) 4194432 5851054080 3 freebsd-zfs (2.7T) 5855248512 5284623 - free - (2.5G) => 34 5860533101 ada2 GPT (2.7T) 34 94 1 freebsd-boot (47k) 128 4194304 2 freebsd-swap (2.0G) 4194432 5851054080 3 freebsd-zfs (2.7T) 5855248512 5284623 - free - (2.5G) => 34 5860533101 ada3 GPT (2.7T) 34 94 1 freebsd-boot (47k) 128 4194304 2 freebsd-swap (2.0G) 4194432 5851054080 3 freebsd-zfs (2.7T) 5855248512 5284623 - free - (2.5G) => 34 5860533101 ada4 GPT (2.7T) 34 94 1 freebsd-boot (47k) 128 4194304 2 freebsd-swap (2.0G) 4194432 5851054080 3 freebsd-zfs (2.7T) 5855248512 5284623 - free - (2.5G) => 34 5860533101 ada5 GPT (2.7T) 34 94 1 freebsd-boot (47k) 128 4194304 2 freebsd-swap (2.0G) 4194432 5851054080 3 freebsd-zfs (2.7T) 5855248512 5284623 - free - (2.5G) $
$ zpool status pool: system state: ONLINE scan: scrub repaired 0 in 0h33m with 0 errors on Fri Aug 16 03:39:04 2013 config: NAME STATE READ WRITE CKSUM system ONLINE 0 0 0 raidz2-0 ONLINE 0 0 0 gpt/disk0 ONLINE 0 0 0 gpt/disk1 ONLINE 0 0 0 gpt/disk2 ONLINE 0 0 0 gpt/disk3 ONLINE 0 0 0 gpt/disk4 ONLINE 0 0 0 gpt/disk5 ONLINE 0 0 0 errors: No known data errors $
Copyright (c) 1992-2012 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 09:23:10 UTC 2012 root@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 can't re-use a leaf (geom_label)! can't re-use a leaf (geom_part_gpt)! module_register: module g_label already exists! Module g_label failed to register: 17 module_register: module g_part_gpt already exists! Module g_part_gpt failed to register: 17 CPU: Intel(R) Xeon(R) CPU E3-1230 V2 @ 3.30GHz (3300.10-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0x306a9 Family = 6 Model = 3a Stepping = 9 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=0x7fbae3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND> AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM> AMD Features2=0x1<LAHF> TSC: P-state invariant, performance statistics real memory = 17188257792 (16392 MB) avail memory = 16493473792 (15729 MB) Event timer "LAPIC" quality 600 ACPI APIC Table: <SUPERM SMCI--MB> FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs FreeBSD/SMP: 1 package(s) x 4 core(s) x 2 SMT threads cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 cpu2 (AP): APIC ID: 2 cpu3 (AP): APIC ID: 3 cpu4 (AP): APIC ID: 4 cpu5 (AP): APIC ID: 5 cpu6 (AP): APIC ID: 6 cpu7 (AP): APIC ID: 7 ioapic0 <Version 2.0> irqs 0-23 on motherboard kbd1 at kbdmux0 GEOM_PART: scheme GPT is already registered! cryptosoft0: <software crypto> on motherboard acpi0: <SUPERM SMCI--MB> on motherboard acpi0: Power Button (fixed) acpi0: reservation of 67, 1 (4) failed cpu0: <ACPI CPU> on acpi0 cpu1: <ACPI CPU> on acpi0 cpu2: <ACPI CPU> on acpi0 cpu3: <ACPI CPU> on acpi0 cpu4: <ACPI CPU> on acpi0 cpu5: <ACPI CPU> on acpi0 cpu6: <ACPI CPU> on acpi0 cpu7: <ACPI CPU> on acpi0 hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0 Timecounter "HPET" frequency 14318180 Hz quality 950 Event timer "HPET" frequency 14318180 Hz quality 550 atrtc0: <AT realtime clock> port 0x70-0x77 irq 8 on acpi0 atrtc0: Warning: Couldn't map I/O. Event timer "RTC" frequency 32768 Hz quality 0 attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0 Timecounter "i8254" frequency 1193182 Hz quality 0 Event timer "i8254" frequency 1193182 Hz quality 100 Timecounter "ACPI-fast" frequency 3579545 Hz quality 900 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0 pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 pci0: <ACPI PCI bus> on pcib0 ehci0: <EHCI (generic) USB 2.0 controller> mem 0xdfc04000-0xdfc043ff irq 16 at device 26.0 on pci0 usbus0: EHCI version 1.0 usbus0 on ehci0 pcib1: <ACPI PCI-PCI bridge> irq 16 at device 28.0 on pci0 pci1: <ACPI PCI bus> on pcib1 ahci0: <Marvell 88SE912x AHCI SATA controller> port 0xe090-0xe097,0xe080-0xe083,0xe070-0xe077,0xe060-0xe063,0xe050-0xe05f mem 0xdfb21000-0xdfb217ff irq 16 at device 0.0 on pci1 ahci0: AHCI v1.00 with 2 6Gbps ports, Port Multiplier supported with FBS ahcich0: <AHCI channel> at channel 0 on ahci0 ahcich1: <AHCI channel> at channel 1 on ahci0 atapci0: <Marvell 88SE912x UDMA133 controller> port 0xe040-0xe047,0xe030-0xe033,0xe020-0xe027,0xe010-0xe013,0xe000-0xe00f mem 0xdfb20000-0xdfb2000f irq 17 at device 0.1 on pci1 pcib2: <ACPI PCI-PCI bridge> irq 16 at device 28.4 on pci0 pci2: <ACPI PCI bus> on pcib2 em0: <Intel(R) PRO/1000 Network Connection 7.3.2> port 0xd000-0xd01f mem 0xdfa00000-0xdfa1ffff,0xdfa20000-0xdfa23fff irq 16 at device 0.0 on pci2 em0: Using MSIX interrupts with 3 vectors em0: Ethernet address: 00:25:90:a4:cd:d4 pcib3: <ACPI PCI-PCI bridge> irq 18 at device 28.6 on pci0 pci3: <ACPI PCI bus> on pcib3 em1: <Intel(R) PRO/1000 Network Connection 7.3.2> port 0xc000-0xc01f mem 0xdf900000-0xdf91ffff,0xdf920000-0xdf923fff irq 18 at device 0.0 on pci3 em1: Using MSIX interrupts with 3 vectors em1: Ethernet address: 00:25:90:a4:cd:d5 ehci1: <EHCI (generic) USB 2.0 controller> mem 0xdfc03000-0xdfc033ff irq 23 at device 29.0 on pci0 usbus1: EHCI version 1.0 usbus1 on ehci1 pcib4: <ACPI PCI-PCI bridge> at device 30.0 on pci0 pci4: <ACPI PCI bus> on pcib4 vgapci0: <VGA-compatible display> mem 0xde000000-0xdeffffff,0xdf800000-0xdf803fff,0xdf000000-0xdf7fffff irq 23 at device 3.0 on pci4 isab0: <PCI-ISA bridge> at device 31.0 on pci0 isa0: <ISA bus> on isab0 ahci1: <Intel Cougar Point AHCI SATA controller> port 0xf050-0xf057,0xf040-0xf043,0xf030-0xf037,0xf020-0xf023,0xf000-0xf01f mem 0xdfc02000-0xdfc027ff irq 19 at device 31.2 on pci0 ahci1: AHCI v1.30 with 6 3Gbps ports, Port Multiplier not supported ahcich2: <AHCI channel> at channel 0 on ahci1 ahcich3: <AHCI channel> at channel 1 on ahci1 ahcich4: <AHCI channel> at channel 2 on ahci1 ahcich5: <AHCI channel> at channel 3 on ahci1 ahcich6: <AHCI channel> at channel 4 on ahci1 ahcich7: <AHCI channel> at channel 5 on ahci1 pci0: <serial bus, SMBus> at device 31.3 (no driver attached) acpi_button0: <Power Button> on acpi0 acpi_tz0: <Thermal Zone> on acpi0 acpi_tz1: <Thermal Zone> on acpi0 atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 uart1: <16550 or compatible> port 0x2f8-0x2ff irq 3 on acpi0 uart2: <16550 or compatible> port 0x3e8-0x3ef irq 10 on acpi0 orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xc8fff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 ppc0: cannot reserve I/O port range ctl: CAM Target Layer loaded est0: <Enhanced SpeedStep Frequency Control> on cpu0 p4tcc0: <CPU Frequency Thermal Control> on cpu0 est1: <Enhanced SpeedStep Frequency Control> on cpu1 p4tcc1: <CPU Frequency Thermal Control> on cpu1 est2: <Enhanced SpeedStep Frequency Control> on cpu2 p4tcc2: <CPU Frequency Thermal Control> on cpu2 est3: <Enhanced SpeedStep Frequency Control> on cpu3 p4tcc3: <CPU Frequency Thermal Control> on cpu3 est4: <Enhanced SpeedStep Frequency Control> on cpu4 p4tcc4: <CPU Frequency Thermal Control> on cpu4 est5: <Enhanced SpeedStep Frequency Control> on cpu5 p4tcc5: <CPU Frequency Thermal Control> on cpu5 est6: <Enhanced SpeedStep Frequency Control> on cpu6 p4tcc6: <CPU Frequency Thermal Control> on cpu6 est7: <Enhanced SpeedStep Frequency Control> on cpu7 p4tcc7: <CPU Frequency Thermal Control> on cpu7 ZFS filesystem version 5 ZFS storage pool version 28 Timecounters tick every 1.000 msec The GEOM class LABEL is already loaded. usbus0: 480Mbps High Speed USB v2.0 usbus1: 480Mbps High Speed USB v2.0 ugen0.1: <Intel> at usbus0 uhub0: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0 ugen1.1: <Intel> at usbus1 uhub1: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1 uhub0: 2 ports with 2 removable, self powered uhub1: 2 ports with 2 removable, self powered ugen0.2: <vendor 0x8087> at usbus0 uhub2: <vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, addr 2> on usbus0 ugen1.2: <vendor 0x8087> at usbus1 uhub3: <vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, addr 2> on usbus1 uhub2: 6 ports with 6 removable, self powered uhub3: 6 ports with 6 removable, self powered ada0 at ahcich2 bus 0 scbus2 target 0 lun 0 ada0: <TOSHIBA DT01ACA300 MX6OABB0> ATA-8 SATA 3.x device ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada0: Command Queueing enabled ada0: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C) ada0: Previously was known as ad8 ada1 at ahcich3 bus 0 scbus3 target 0 lun 0 ada1: <Hitachi HDS723030BLE640 MX6OAAB0> ATA-8 SATA 3.x device ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada1: Command Queueing enabled ada1: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C) ada1: Previously was known as ad10 ada2 at ahcich4 bus 0 scbus4 target 0 lun 0 ada2: <Hitachi HDS723030BLE640 MX6OAAB0> ATA-8 SATA 3.x device ada2: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada2: Command Queueing enabled ada2: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C) ada2: Previously was known as ad12 ada3 at ahcich5 bus 0 scbus5 target 0 lun 0 ada3: <Hitachi HDS723030BLE640 MX6OAAB0> ATA-8 SATA 3.x device ada3: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada3: Command Queueing enabled ada3: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C) ada3: Previously was known as ad14 ada4 at ahcich6 bus 0 scbus6 target 0 lun 0 ada4: <Hitachi HDS723030BLE640 MX6OAAB0> ATA-8 SATA 3.x device ada4: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada4: Command Queueing enabled ada4: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C) ada4: Previously was known as ad16 ada5 at ahcich7 bus 0 scbus7 target 0 lun 0 ada5: <Hitachi HDS723030BLE640 MX6OAAB0> ATA-8 SATA 3.x device ada5: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada5: Command Queueing enabled ada5: 2861588MB (5860533168 512 byte sectors: 16H 63S/T 16383C) ada5: Previously was known as ad18 SMP: AP CPU #1 Launched! SMP: AP CPU #2 Launched! SMP: AP CPU #6 Launched! SMP: AP CPU #3 Launched! SMP: AP CPU #7 Launched! SMP: AP CPU #4 Launched! SMP: AP CPU #5 Launched! Timecounter "TSC-low" frequency 12891003 Hz quality 1000 GEOM_MIRROR: Device mirror/swap launched (6/6). Root mount waiting for: usbus0 Root mount waiting for: usbus0 Root mount waiting for: usbus0 Root mount waiting for: usbus0 ugen0.3: <Winbond Electronics Corp> at usbus0 ums0: <Winbond Electronics Corp Hermon USB hidmouse Device, class 0/0, rev 1.10/0.01, addr 3> on usbus0 ums0: 3 buttons and [Z] coordinates ID=0 ukbd0: <Winbond Electronics Corp Hermon USB hidmouse Device, class 0/0, rev 1.10/0.01, addr 3> on usbus0 kbd2 at ukbd0 Trying to mount root from zfs:system/rootfs []... GEOM_ELI: Device mirror/swap.eli created. GEOM_ELI: Encryption: AES-XTS 256 GEOM_ELI: Crypto: software