PIB

作業環境

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 13.04
Release:	13.04
Codename:	raring
$ uname -a
Linux hostname 3.8.0-31-generic #46-Ubuntu SMP Tue Sep 10 20:03:44 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

デバイスの素性

$ sudo hdparm -I /dev/sda

/dev/sda:

ATA device, with non-removable media
        Model Number:       Hitachi HDS722020ALA330                 
        Serial Number:      xxxxxxxxxxxxxx
        Firmware Revision:  JKAOA28A
        Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6; Revision: ATA8-AST T13 Project D1697 Revision 0b
Standards:
        Used: unknown (minor revision code 0x0029) 
        Supported: 8 7 6 5 
        Likely used: 8
Configuration:
        Logical         max     current
        cylinders       16383   16383
        heads           16      16
        sectors/track   63      63
        --
        CHS current addressable sectors:   16514064
        LBA    user addressable sectors:  268435455
        LBA48  user addressable sectors: 3907029168
        Logical/Physical Sector size:           512 bytes
        device size with M = 1024*1024:     1907729 MBytes
        device size with M = 1000*1000:     2000398 MBytes (2000 GB)
        cache/buffer size  = 29999 KBytes (type=DualPortCache)
        Form Factor: 3.5 inch
        Nominal Media Rotation Rate: 7200
Capabilities:
        LBA, IORDY(can be disabled)
        Queue depth: 32
        Standby timer values: spec'd by Standard, no device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 16
        Advanced power management level: disabled
        Recommended acoustic management value: 128, current value: 254
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4 
             Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
        Enabled Supported:
           *    SMART feature set
                Security Mode feature set
           *    Power Management feature set
           *    Write cache
           *    Look-ahead
           *    Host Protected Area feature set
           *    WRITE_BUFFER command
           *    READ_BUFFER command
           *    DOWNLOAD_MICROCODE
                Advanced Power Management feature set
                Power-Up In Standby feature set
           *    SET_FEATURES required to spinup after power up
                SET_MAX security extension
                Automatic Acoustic Management feature set
           *    48-bit Address feature set
           *    Device Configuration Overlay feature set
           *    Mandatory FLUSH_CACHE
           *    FLUSH_CACHE_EXT
           *    SMART error logging
           *    SMART self-test
                Media Card Pass-Through
           *    General Purpose Logging feature set
           *    WRITE_{DMA|MULTIPLE}_FUA_EXT
           *    64-bit World wide name
           *    URG for READ_STREAM[_DMA]_EXT
           *    URG for WRITE_STREAM[_DMA]_EXT
           *    WRITE_UNCORRECTABLE_EXT command
           *    Segmented DOWNLOAD_MICROCODE
           *    Gen1 signaling speed (1.5Gb/s)
           *    Gen2 signaling speed (3.0Gb/s)
           *    Native Command Queueing (NCQ)
           *    Host-initiated interface power management
           *    Phy event counters
           *    NCQ priority information
                Non-Zero buffer offsets in DMA Setup FIS
           *    DMA Setup Auto-Activate optimization
                Device-initiated interface power management
                In-order data delivery
           *    Software settings preservation
           *    SMART Command Transport (SCT) feature set
           *    SCT Write Same (AC2)
           *    SCT Error Recovery Control (AC3)
           *    SCT Features Control (AC4)
           *    SCT Data Tables (AC5)
Security:
        Master password revision code = 65534
                supported
        not     enabled
        not     locked
        not     frozen
        not     expired: security count
        not     supported: enhanced erase
Logical Unit WWN Device Identifier: xxxxxxxxxxxxxxxx
        NAA             : x
        IEEE OUI        : xxxxxx
        Unique ID       : xxxxxxxxx
Checksum: correct

GNU parted で GPT を切る

$ sudo parted /dev/sda
GNU Parted 2.3
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p                                                                
Error: /dev/sda: unrecognised disk label                                  
(parted) mklabel gpt
(parted) p                                                                
Model: ATA Hitachi HDS72202 (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start  End  Size  File system  Name  Flags

(parted) mkpart freebsd-zfs 2048s 3906252047s                             
(parted) p                                                                
Model: ATA Hitachi HDS72202 (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name         Flags
 1      1049kB  2000GB  2000GB               freebsd-zfs

(parted) u s                                                              
(parted) p                                                              
Model: ATA Hitachi HDS72202 (scsi)
Disk /dev/sda: 3907029168s
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start  End          Size         File system  Name         Flags
 1      2048s  3906252047s  3906250000s               freebsd-zfs

(parted) u B
(parted) p                                                              
Model: ATA Hitachi HDS72202 (scsi)
Disk /dev/sda: 2000398934016B
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start     End             Size            File system  Name         Flags
 1      1048576B  2000001048575B  2000000000000B               freebsd-zfs

(parted) quit                                                             
Information: You may need to update /etc/fstab.                           

開始終了セクターの決定は以下の計算
Size = 2,000,000,000,000 bytes = 3,906,250,000 sectors * 512 bytes = 2^4*5^12 sectors * 512 bytes
Start = 2,048 sector
End = 3,906,252,047 sector = 3,906,250,000 + 2,048 - 1 sector

zpool の作成

$ sudo zpool create -m /media/zfs-pools/backup001 backup001 sda1
$ sudo zfs create /media/zfs-pools/backup001/LANDISK

• ZFS