{"id":9576,"date":"2026-06-28T11:51:48","date_gmt":"2026-06-28T02:51:48","guid":{"rendered":"https:\/\/akibabara.com\/blog\/?p=9576"},"modified":"2026-06-28T12:01:14","modified_gmt":"2026-06-28T03:01:14","slug":"%e6%86%a7%e3%82%8c%e3%81%ae%e3%83%86%e3%83%bc%e3%83%97%e3%83%89%e3%83%a9%e3%82%a4%e3%83%96%e3%82%92%e4%bd%bf%e3%81%a3%e3%81%a6%e3%81%bf%e3%81%9f-ubuntu-24%e3%81%a7lto-ultrium5%e3%82%92%e4%bd%bf","status":"publish","type":"post","link":"https:\/\/akibabara.com\/blog\/9576.html","title":{"rendered":"\u61a7\u308c\u306e\u30c6\u30fc\u30d7\u30c9\u30e9\u30a4\u30d6\u3092\u4f7f\u3063\u3066\u307f\u305f – Ubuntu 24\u3067LTO Ultrium5\u3092\u4f7f\u3046"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

\u30c6\u30fc\u30d7\u306f\u30ed\u30de\u30f3\u3002\u4eba\u751f\u3067\u4e00\u5ea6\u306f\u4f7f\u3063\u3066\u304a\u304d\u305f\u3044\u88c5\u7f6e\u3067\u3059\u3002\u30c6\u30fc\u30d7\u30c9\u30e9\u30a4\u30d6\u306f\u30af\u30c3\u30bd\u9ad8\u3044\u3046\u3048\u306b\u9045\u3044\u3057\u3001\u4e00\u822c\u306e\u3054\u5bb6\u5ead\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7528\u306a\u3089HDD\u306e\u65b9\u304c\u5727\u5012\u7684\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002\u3067\u3082\u306a\u305c\u304b\u60f9\u304b\u308c\u308b\u306e\u304c\u30c6\u30fc\u30d7\u3002\u4eca\u56de\u306f\u305d\u3093\u306a\u5922\u306e\u30c7\u30d0\u30a4\u30b9\u3001\u30c6\u30fc\u30d7\u88c5\u7f6e\u3092\u4f7f\u3063\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u203b\u30d6\u30ed\u30b0\u4e3b\u306f\u30c6\u30fc\u30d7\u88c5\u7f6e\u306b\u3064\u3044\u3066\u306e\u77e5\u8b58\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u8a18\u4e8b\u306b\u66f8\u3044\u305f\u30ce\u30a6\u30cf\u30a6\uff08\u7279\u306b\u30b3\u30de\u30f3\u30c9\u95a2\u4fc2\uff09\u306f\u307b\u3068\u3093\u3069\u304cChatGPT\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n

\u4eca\u56de\u4f7f\u7528\u3057\u305f\u6a5f\u6750<\/h2>\n\n\n\n

\u30c6\u30fc\u30d7\u30c9\u30e9\u30a4\u30d6\u306f\u8cb7\u3046\u3068100\u4e07\u3068\u304b\u305d\u3046\u3086\u3046\u5358\u4f4d\u306a\u306e\u3067\u666e\u901a\u306f\u624b\u304c\u51fa\u305b\u307e\u305b\u3093\u304c\u3001\u4e2d\u53e4\u3060\u3068\u7d50\u69cb\u5b89\u3044\u3082\u306e\u304c\u51fa\u56de\u3063\u3066\u3044\u307e\u3059\u3002\u73fe\u5728\u51fa\u56de\u3063\u3066\u3044\u308b\u3082\u306e\u306fLTO\u3068\u3044\u3046\u30bf\u30a4\u30d7\u306e\u3082\u306e\u304c\u4e3b\u6d41\u3067\u3001LTO-1\u304b\u3089LTO-10\u307e\u3067\u306e\u4e16\u4ee3\u304c\u3042\u308a\u307e\u3059\u3002LTO-1\u306e\u5bb9\u91cf\u306f\u5727\u7e2e\u6642\u3067200GB\u3001\u6700\u65b0\u306eLTO-10\u306f\u5727\u7e2e\u6642\u3067100TB\u3067\u3059\u3002\u904a\u3076\u3060\u3051\u306a\u3089LTO-1\u3067\u3044\u3044\u3058\u3083\u3093\u3001\u3068\u304b\u601d\u3063\u305f\u306e\u3067\u3059\u304c\u3001\u8abf\u3079\u3066\u307f\u308b\u3068\u904a\u3076\u306a\u3089LTO-5\u4ee5\u964d\u304c\u9762\u767d\u3044\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n

LTO-5\u306f\u5727\u7e2e\u6642\u306e\u5bb9\u91cf\u304c3TB\u3001\u8ee2\u9001\u901f\u5ea6\u306f\u5727\u7e2e\u6642\u3067280MB\/s\u3067\u3059\u3002\u306a\u305cLTO-5\u304c\u3044\u3044\u304b\u3068\u3044\u3046\u3068\u3001LTO-5\u4ee5\u964d\u304cLTFS\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002LTFS\u304c\u4f7f\u3048\u308b\u3068\u3001ext4\u3068\u304bzfs\u307f\u305f\u3044\u306a\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u3088\u3046\u306b\u666e\u901a\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u64cd\u4f5c\u3059\u308b\u611f\u899a\u3067\u30c6\u30fc\u30d7\u306e\u8aad\u307f\u66f8\u304d\u304c\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n

\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n

\u3053\u3061\u3089\u304c\u4eca\u56de\u5165\u624b\u3057\u305fLTO-5\u5bfe\u5fdc\u306e\u30c6\u30fc\u30d7\u30c9\u30e9\u30a4\u30d6\u3002\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306fSAS\u3067\u3059\u3002\u5de6\u304c\u30c6\u30fc\u30d7\u306e\u30ab\u30fc\u30c8\u30ea\u30c3\u30b8\u3067\u3059\u30025\u30a4\u30f3\u30c1\u30d9\u30a4\u30b5\u30a4\u30ba\u306e\u30c9\u30e9\u30a4\u30d6\u3092\u9078\u3073\u307e\u3057\u305f\u3002SAS\u306e\u30c9\u30e9\u30a4\u30d6\u306fSATA\u306b\u306f\u7e4b\u304c\u3089\u306a\u3044\u306e\u3067\u3001\u5225\u9014SAS HBA\u30ab\u30fc\u30c9\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n

\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n

\u3053\u3061\u3089\u304cSAS HBA\u30ab\u30fc\u30c9 LSI 9300-16i\u3067\u3059\u300216\u30dd\u30fc\u30c8\u306eSAS\/SATA\u30dd\u30fc\u30c8\u304c\u3042\u308a\u307e\u3059\u3002\u3061\u306a\u307f\u306b\u30a2\u30db\u307f\u305f\u3044\u306b\u767a\u71b1\u3057\u307e\u3059\u3002\u3053\u306e\u62e1\u5f35\u30ab\u30fc\u30c9\u306b\u306fSFF-8644\u30b3\u30cd\u30af\u30bf\u304c4\u500b\u3042\u308a\u3001SFF-8643\u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u3063\u3066\u30c9\u30e9\u30a4\u30d6\u3068\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n

\u3053\u3061\u3089\u304c\u30df\u30cbSAS\u00a0SFF-8643 to SAS 29\u30d4\u30f3 SFF-8482\u5909\u63db\u30b1\u30fc\u30d6\u30eb\u3067\u3059\u30021\u672c\u30674\u3064\u306eSAS\u30dd\u30fc\u30c8\u306b\u63a5\u7d9a\u3067\u304d\u307e\u3059\u3002\u96fb\u6e90\u306f\u5225\u9014\u63a5\u7d9a\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n

Ubuntu 24\u3067\u4f7f\u3046<\/h2>\n\n\n\n

\u30c7\u30d0\u30a4\u30b9\u3092PC\u306b\u63a5\u7d9a\u3057\u305f\u3089\u8a8d\u8b58\u3059\u308b\u304b\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n

\u30c7\u30d0\u30a4\u30b9\u306e\u8a8d\u8b58<\/h3>\n\n\n\n

\u307e\u305a\u306fSAS HBA\u304b\u3089\u3002<\/p>\n\n\n\n

kaz@ubuntu-atx:~$ lspci\n85:00.0 Serial Attached SCSI controller: Broadcom \/ LSI SAS3008 PCI-Express Fusion-MPT SAS-3 (rev 02)\n87:00.0 Serial Attached SCSI controller: Broadcom \/ LSI SAS3008 PCI-Express Fusion-MPT SAS-3 (rev 02)<\/code><\/pre><\/div>\n\n\n\n
kaz@ubuntu-atx:~$ lspci -s 85:00.0 -vv\n85:00.0 Serial Attached SCSI controller: Broadcom \/ LSI SAS3008 PCI-Express Fusion-MPT SAS-3 (rev 02)\n       \tSubsystem: Broadcom \/ LSI SAS 9300-16i\n       \tControl: I\/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+\n       \tStatus: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-\n       \tLatency: 0, Cache Line Size: 64 bytes\n       \tInterrupt: pin A routed to IRQ 16\n       \tIOMMU group: 24\n       \tRegion 0: I\/O ports at 4000 [size=256]\n       \tRegion 1: Memory at b8300000 (64-bit, non-prefetchable) [size=64K]\n       \tExpansion ROM at b8200000 [disabled] [size=1M]\n       \tCapabilities: <access denied>\n       \tKernel driver in use: mpt3sas\n       \tKernel modules: mpt3sas<\/code><\/pre><\/div>\n\n\n\n
LSI SAS 9300-16i\u306f\u8a8d\u8b58\u3057\u3066\u307e\u3059\u306d\u3002\u6b21\u306f\u5fc5\u8981\u306a\u30c4\u30fc\u30eb\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
$ sudo apt install lsscsi sg3-utils mt-st<\/code><\/pre><\/div>\n\n\n\n
\u30c6\u30fc\u30d7\u30c9\u30e9\u30a4\u30d6\u304c\u8a8d\u8b58\u3057\u3066\u3044\u308b\u304b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ lsscsi -g\n[0:0:0:0]    tape    HP       Ultrium 5-SCSI   Z39D  \/dev\/st0   \/dev\/sg0\n[N:0:1:1]    disk    BC711 NVMe SK hynix 256GB__1               \/dev\/nvme0n1  -<\/code><\/pre><\/div>\n\n\n\n
Ultrium 5-SCSI\u3068\u51fa\u3066\u307e\u3059\u306d\u3002\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u306f\u4ee5\u4e0b\u306e\u3082\u306e\u304c\u4f5c\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ ll \/dev\/st*\ncrw-rw---- 1 root tape 9,  0  6\u6708 28 08:07 \/dev\/st0\ncrw-rw---- 1 root tape 9, 96  6\u6708 28 08:07 \/dev\/st0a\ncrw-rw---- 1 root tape 9, 32  6\u6708 28 08:07 \/dev\/st0l\ncrw-rw---- 1 root tape 9, 64  6\u6708 28 08:07 \/dev\/st0m\n\nkaz@ubuntu-atx:~$ ll \/dev\/nst*\ncrw-rw---- 1 root tape 9, 128  6\u6708 28 08:07 \/dev\/nst0\ncrw-rw---- 1 root tape 9, 224  6\u6708 28 08:07 \/dev\/nst0a\ncrw-rw---- 1 root tape 9, 160  6\u6708 28 08:07 \/dev\/nst0l\ncrw-rw---- 1 root tape 9, 192  6\u6708 28 08:07 \/dev\/nst0m\n\nkaz@ubuntu-atx:~$ ll \/dev\/sg*\ncrw-rw---- 1 root tape 21, 0  6\u6708 28 08:07 \/dev\/sg0<\/code><\/pre><\/div>\n\n\n\n
st0, nst0, sg0 \u3068\u3044\u30463\u7a2e\u985e\u306e\u30c7\u30d0\u30a4\u30b9\u30d5\u30a1\u30a4\u30eb\u304c\u51fa\u3066\u304d\u307e\u3057\u305f\u3002\u4f55\u304c\u9055\u3046\u306e\u304b\u308f\u304b\u3089\u306a\u3044\u306e\u3067ChatGPT\u306b\u805e\u3044\u3066\u307f\u307e\u3057\u305f\u3002
st0 : \u81ea\u52d5\u5dfb\u304d\u623b\u3057\u3002\u64cd\u4f5c\u5f8c\u306b\u5dfb\u304d\u623b\u308b\u3002
nst0 : \u5dfb\u304d\u623b\u3057\u3055\u308c\u306a\u3044\u3002\u57fa\u672c\u306f\u3053\u3061\u3089\u3092\u4f7f\u3046\u3002
sg0 : SCSI\u30c7\u30d0\u30a4\u30b9\u306b\u30b3\u30de\u30f3\u30c9\u3092\u9001\u308b\u3068\u304d\u306b\u4f7f\u3046\u3002<\/p>\n\n\n\n
\u57fa\u672c\u7684\u306a\u30c6\u30fc\u30d7\u64cd\u4f5c<\/h3>\n\n\n\n
\u30c6\u30fc\u30d7\u306e\u72b6\u614b\u78ba\u8a8d\u3002\uff08\u30c6\u30fc\u30d7\u306a\u3057\u6642\uff09<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ sudo mt -f \/dev\/nst0 status\nSCSI 2 tape drive:\nFile number=-1, block number=-1, partition=0.\nTape block size 0 bytes. Density code 0x0 (default).\nSoft error count since last status=0\nGeneral status bits on (50000):\n DR_OPEN IM_REP_EN<\/code><\/pre><\/div>\n\n\n\n
\u30c6\u30fc\u30d7\u3092\u5165\u308c\u3066\u3082\u3046\u4e00\u5ea6\u540c\u3058\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u307f\u307e\u3059\u3002\u30ac\u30c1\u30e3\u30f3\u3001\u30ab\u30b3\u30ab\u30b3\u30c3\u3001\u30a6\u30a3\u30fc\u30f3\u3002\u3046\u308f\u3041\uff5e\uff5e\u304b\u3063\u3053\u3044\u3044\uff01\uff01<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ sudo mt -f \/dev\/nst0 status\nSCSI 2 tape drive:\nFile number=0, block number=0, partition=0.\nTape block size 0 bytes. Density code 0x58 (LTO-5).\nSoft error count since last status=0\nGeneral status bits on (41010000):\n BOT ONLINE IM_REP_EN<\/code><\/pre><\/div>\n\n\n\n
\u57fa\u672c\u7684\u306a\u30b3\u30de\u30f3\u30c9<\/p>\n\n\n\n
# \u5dfb\u304d\u623b\u3057\nsudo mt -f \/dev\/nst0 rewind\n\n# \u30a2\u30f3\u30ed\u30fc\u30c9 \/ \u30a4\u30b8\u30a7\u30af\u30c8\nsudo mt -f \/dev\/nst0 offline\n# \u307e\u305f\u306f\nsudo mt -f \/dev\/nst0 eject\n\n# \u30c6\u30fc\u30d7\u7d42\u7aef\u3078\u79fb\u52d5\nsudo mt -f \/dev\/nst0 eod<\/code><\/pre><\/div>\n\n\n\n
\u5f97\u4f53\u306e\u77e5\u308c\u306a\u3044\u30b8\u30e3\u30f3\u30af\u4fdd\u8a3c\u306a\u3057\u306e\u4e2d\u53e4\u54c1\u3067\u3057\u305f\u304c\u7121\u4e8b\u306b\u52d5\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
LTFS\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h2>\n\n\n\n
\u7d9a\u3044\u3066\u30c6\u30fc\u30d7\u306e\u8aad\u307f\u66f8\u304d\u3092\u5b9f\u8df5\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4eca\u56de\u306fLTFS\u3092\u4f7f\u7528\u3057\u307e\u3059\u304cUbuntu\u306b\u306f\u6a19\u6e96\u3067\u5165\u3063\u3066\u306f\u3044\u307e\u305b\u3093\u3002\u901a\u5e38\u306f\u30c6\u30fc\u30d7\u30c9\u30e9\u30a4\u30d6\u306e\u30e1\u30fc\u30ab\u30fc\u304c\u4f7f\u3046\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u4f7f\u7528\u3059\u308b\u305d\u3046\u3067\u3059\u304c\u3001\u306a\u3093\u304b\u9762\u5012\u305d\u3046\u306a\u306e\u3067 LinearTapeFileSystem\/ltfs<\/a> \u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u307e\u305a\u306f\u3058\u3081\u306b\u958b\u767a\u74b0\u5883\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
sudo apt update\nsudo apt install \\\n  git build-essential autoconf automake libtool pkg-config \\\n  libfuse-dev fuse \\\n  libxml2-dev uuid-dev libicu-dev libsnmp-dev \\\n  mt-st lsscsi sg3-utils<\/code><\/pre><\/div>\n\n\n\n
ltfs\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u3092\u30af\u30ed\u30fc\u30f3\u3057\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
git clone https:\/\/github.com\/LinearTapeFileSystem\/ltfs.git\ncd ltfs\ngit submodule update --init --recursive\n.\/autogen.sh\n.\/configure\n    :\nchecking for icu >= 0.21... no\nconfigure: error: Package requirements (icu >= 0.21) were not met:\nPackage 'icu', required by 'virtual:world', not found<\/code><\/pre><\/div>\n\n\n\n
\u304a\u3063\u3068\u3001configure\u3067\u30a8\u30e9\u30fc\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u3044\u308d\u3044\u308d\u3084\u3063\u3066\u3082\u89e3\u6c7a\u305b\u305a\u3001\u4ee5\u4e0b\u306e\u65b9\u6cd5\u3067\u306a\u3093\u3068\u304b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
mkdir -p ~\/pkgconfig\n\nprintf '%s\\n' \\\n'Name: icu' \\\n'Description: ICU compatibility alias for LTFS configure' \\\n'Version: 74.2' \\\n'Cflags:' \\\n'Libs: -licui18n -licuuc -licudata' \\\n> ~\/pkgconfig\/icu.pc\n\nexport PKG_CONFIG_PATH="$HOME\/pkgconfig:$PKG_CONFIG_PATH"\n\npkg-config --modversion icu\n# 74.2\u3068\u51fa\u308b<\/code><\/pre><\/div>\n\n\n\n
\u3082\u3046\u4e00\u5ea6configure\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n
make distclean 2>\/dev\/null || true\n.\/autogen.sh\n.\/configure<\/code><\/pre><\/div>\n\n\n\n
\u4eca\u5ea6\u306f\u5927\u4e08\u592b\u3067\u3059\u306d\u3002make\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
make -j"$(nproc)"\nsudo make install\nsudo ldconfig<\/code><\/pre><\/div>\n\n\n\n
kaz@ubuntu-atx:~\/ltfs$ ltfs --version\nLTFS version 2.4.8.4 (Prelim).\nLTFS Format Specification version 2.4.0.\n\nkaz@ubuntu-atx:~\/ltfs$ mkltfs --version\nmkltfs version 2.4.8.4 (Prelim).\nLTFS Format Specification version 2.4.0.<\/code><\/pre><\/div>\n\n\n\n
\u7121\u4e8b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u307e\u3057\u305f\uff01<\/p>\n\n\n\n
LTFS\u3067\u30d5\u30a1\u30a4\u30eb\u306e\u64cd\u4f5c\u3092\u3059\u308b<\/h2>\n\n\n\n
\u3053\u308c\u3067\u3084\u3063\u3068\u30c6\u30fc\u30d7\u3092\u8aad\u307f\u66f8\u304d\u3059\u308b\u6e96\u5099\u304c\u6574\u3044\u307e\u3057\u305f\u3002\u3055\u3063\u305d\u304f\u30d5\u30a1\u30a4\u30eb\u3092\u64cd\u4f5c\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u307e\u305a\u306f\u72b6\u614b\u3092\u78ba\u8a8d<\/p>\n\n\n\n
kaz@ubuntu-atx:~\/ltfs$ lsscsi -g\n[0:0:0:0]    tape    HP       Ultrium 5-SCSI   Z39D  \/dev\/st0   \/dev\/sg0\n[N:0:1:1]    disk    BC711 NVMe SK hynix 256GB__1               \/dev\/nvme0n1  -\n\nkaz@ubuntu-atx:~\/ltfs$ sudo mt -f \/dev\/nst0 status\nSCSI 2 tape drive:\nFile number=0, block number=0, partition=0.\nTape block size 0 bytes. Density code 0x58 (LTO-5).\nSoft error count since last status=0\nGeneral status bits on (41010000):\n BOT ONLINE IM_REP_EN\n\nkaz@ubuntu-atx:~\/ltfs$ sudo ltfs -o device_list\n6bbd LTFS14000I LTFS starting, LTFS version 2.4.8.4 (Prelim), log level 2.\n6bbd LTFS14058I LTFS Format Specification version 2.4.0.\n6bbd LTFS14104I Launched by "ltfs -o device_list".\n6bbd LTFS14105I This binary is built for Linux (x86_64).\n6bbd LTFS14106I GCC version is 13.3.0.\n6bbd LTFS17087I Kernel version: Linux version 6.17.0-35-generic (buildd@lcy02-amd64-079) (x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04.1) 13.3.0, GNU ld (GNU Binutils for Ubuntu) 2.42) #35~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue May 26 19:30:42 UTC 2 i386.\n6bbd LTFS17089I Distribution: DISTRIB_ID=Ubuntu.\n6bbd LTFS17089I Distribution: PRETTY_NAME="Ubuntu 24.04.4 LTS".\n6bbd LTFS17085I Plugin: Loading "sg" tape backend.\nTape Device list:.\nDevice Name = \/dev\/sg0 (0.0.0.0), Vendor ID = HP      , Product ID = Ultrium 5-SCSI  , Serial Number = HU1129HENG, Product Name =[Ultrium 5-SCSI].<\/code><\/pre><\/div>\n\n\n\n
\u3053\u306e\u5834\u5408\u3001LTFS\u3067\u306f\/dev\/st0\u3067\u306f\u306a\u304f\u3001\/dev\/sg0\u3092\u4f7f\u3046\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n
\u30c6\u30fc\u30d7\u3092LTFS\u3067\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3002\u3053\u306e\u4e2d\u53e4\u306eLTO-5\u30c6\u30fc\u30d7\u306f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6e08\u307f\u3060\u3063\u305f\u306e\u3067\u3001-f \u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u5f37\u5236\u3057\u3066\u3044\u307e\u3059\u3002\u3061\u306a\u307f\u306b–no-compression\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4ed8\u3051\u308b\u3068\u975e\u5727\u7e2e\u30e2\u30fc\u30c9\u306b\u306a\u308b\u305d\u3046\u3067\u3059\u3002\u901a\u5e38\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u5727\u7e2e\u30e2\u30fc\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n
$ sudo mkltfs -d \/dev\/sg0 -f\n    :\nLTFS15019I Volume capacity is 1516 GB.\nLTFS30205I MODESENSE (0x5a) returns -20501.\nLTFS30263I MODESENSE returns Invalid Field in CDB (-20501) \/dev\/sg0.\nLTFS15024I Medium formatted successfully.<\/code><\/pre><\/div>\n\n\n\n
\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u304d\u307e\u3057\u305f\uff01\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306b\u30de\u30a6\u30f3\u30c8\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
sudo mkdir -p \/mnt\/ltfs\nsudo ltfs -o devname=\/dev\/sg0 \/mnt\/ltfs<\/code><\/pre><\/div>\n\n\n\n
\u30de\u30a6\u30f3\u30c8\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ df -h\nFilesystem      Size  Used Avail Use% Mounted on\ntmpfs           1.6G  2.6M  1.6G   1% \/run\n\/dev\/nvme0n1p2  233G   12G  210G   6% \/\ntmpfs           7.6G     0  7.6G   0% \/dev\/shm\ntmpfs           5.0M  8.0K  5.0M   1% \/run\/lock\nefivarfs        192K  140K   48K  75% \/sys\/firmware\/efi\/efivars\n\/dev\/nvme0n1p1  1.1G  6.2M  1.1G   1% \/boot\/efi\ntmpfs           1.6G  120K  1.6G   1% \/run\/user\/1000\nltfs:\/dev\/sg0   1.4T     0  1.4T   0% \/mnt\/ltfs<\/code><\/pre><\/div>\n\n\n\n
1.4TB\u3067\u8a8d\u8b58\u3057\u3066\u307e\u3059\u306d\u3002\u4f55\u304b\u66f8\u304d\u8fbc\u3093\u3067\u307f\u307e\u3057\u3087\u3046\u3002\u30c6\u30fc\u30d7\u30c9\u30e9\u30a4\u30d6\u3067\u306f\u5927\u91cf\u306e\u7d30\u304b\u3044\u4e0d\u5411\u304d\u3068\u3044\u3046\u3053\u3068\u306a\u306e\u3067\u3001\u5927\u304d\u306a\u30d5\u30a1\u30a4\u30eb\u30921\u500b\u66f8\u3044\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ dd if=\/dev\/urandom of=test-1g.bin bs=1M count=1024\nkaz@ubuntu-atx:~$ cp test-1g.bin \/mnt\/ltfs\/.<\/code><\/pre><\/div>\n\n\n\n
\u66f8\u3051\u305f\u304b\u306a\uff1f<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ ll \/mnt\/ltfs\/\n\u5408\u8a08 1048580\ndrwxrwxrwx 2 kaz  kaz           0  6\u6708 28 10:50 .\/\ndrwxr-xr-x 3 root root       4096  6\u6708 28 10:45 ..\/\n-rwxrwxrwx 1 kaz  kaz  1073741824  6\u6708 28 10:50 test-1g.bin*<\/code><\/pre><\/div>\n\n\n\n
\u30a2\u30f3\u30de\u30a6\u30f3\u30c8\u3057\u3066\u4e00\u65e6\u30c6\u30fc\u30d7\u3092\u53d6\u308a\u51fa\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ sudo umount \/mnt\/ltfs\nkaz@ubuntu-atx:~$ sudo mt -f \/dev\/nst0 eject\n\/dev\/nst0: Input\/output error<\/code><\/pre><\/div>\n\n\n\n
\u306a\u3093\u304b\u30a8\u30e9\u30fc\u51fa\u305f\u3002\u30c6\u30fc\u30d7\u30c9\u30e9\u30a4\u30d6\u304c\u52d5\u3044\u3066\u3044\u308b\u3068\u304d\u306b\u5b9f\u884c\u3057\u305f\u304b\u3089\u306a\u306e\u304b\u3001\u97f3\u304c\u6b62\u307e\u3063\u3066\u304b\u3089\u3082\u3046\u4e00\u5ea6\u3084\u3063\u305f\u3089\u30a4\u30b8\u30a7\u30af\u30c8\u3067\u304d\u307e\u3057\u305f\u3002\u3082\u3046\u4e00\u5ea6\u30de\u30a6\u30f3\u30c8\u3057\u3066\u3001\u30d5\u30a1\u30a4\u30eb\u304c\u8aad\u3081\u308b\u304b\u30c1\u30a7\u30c3\u30af\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ sudo ltfs -o devname=\/dev\/sg0 \/mnt\/ltfs\n\nkaz@ubuntu-atx:~$ ll \/mnt\/ltfs\/\n\u5408\u8a08 1048580\ndrwxrwxrwx 2 kaz  kaz           0  6\u6708 28 10:50 .\/\ndrwxr-xr-x 3 root root       4096  6\u6708 28 10:45 ..\/\n-rwxrwxrwx 1 kaz  kaz  1073741824  6\u6708 28 10:50 test-1g.bin*\n\nkaz@ubuntu-atx:~$ cat \/mnt\/ltfs\/test-1g.bin >\/dev\/null\n\nkaz@ubuntu-atx:~$ od -tx1z -N 256 \/mnt\/ltfs\/test-1g.bin\n0000000 31 f8 94 7a d4 59 2e 5d 49 df e8 99 1f 1d 5a 2e  >1..z.Y.]I.....Z.<\n0000020 d3 21 87 a9 4a da e4 32 09 d5 10 1c 95 e7 f1 8a  >.!..J..2........<\n    :\n0000340 4c 0d 4e 42 a2 0a 2b 69 f3 6d c0 97 f8 2e ff ef  >L.NB..+i.m......<\n0000360 af 3b ea a1 a6 2b f5 e2 8e 58 c8 49 67 d1 3c 81  >.;...+...X.Ig.<.<<\/code><\/pre><\/div>\n\n\n\n
\u30ad\u30e5\u30a4\u30fc\u30f3\u3001\u30ad\u30e5\u30a4\u30fc\u30f3\u3068\u3044\u3063\u3066\u52d5\u3044\u3066\u307e\u3059\u3002\u304b\u3063\u3053\u3044\u3044\uff01<\/p>\n\n\n\n
\u6700\u5f8c\u306b\u66f8\u304d\u8fbc\u307f\u30d4\u30fc\u30c9\u3092\u6e2c\u5b9a\u3057\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u300210GB\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u66f8\u304d\u8fbc\u3093\u3067\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
kaz@ubuntu-atx:~$ time (dd if=\/dev\/urandom of=\/mnt\/ltfs\/test-10g.bin bs=1M count=10240; sync)\n10240+0 records in\n10240+0 records out\n10737418240 bytes (11 GB, 10 GiB) copied, 92.9369 s, 116 MB\/s\n\nreal   \t1m32.942s\nuser   \t0m0.006s\nsys    \t0m19.649s<\/code><\/pre><\/div>\n\n\n\n
\u66f8\u304d\u8fbc\u307f\u901f\u5ea6\u306f 110MB\/s \u304f\u3089\u3044\u306e\u3088\u3046\u3067\u3059\u3002LTO-5\u306f\u5727\u7e2e\u6642\u306e\u8ee2\u9001\u901f\u5ea6\u306f280MB\/s\u3001\u975e\u5727\u7e2e\u6642\u306e\u8ee2\u9001\u901f\u5ea6\u306f140MB\/s\u3068\u306e\u3053\u3068\u3067\u3059\u304c\u3001\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u30e9\u30f3\u30c0\u30e0\u30c7\u30fc\u30bf\u306a\u306e\u3067\u5727\u7e2e\u7387\u306f\u6975\u3081\u3066\u60aa\u3044\u3067\u3057\u3087\u3046\u3002\u305d\u3046\u8003\u3048\u308b\u3068\u5c11\u3057\u9045\u3044\u3082\u306e\u306e\u59a5\u5f53\u306a\u5024\u3067\u3059\u306d\u3002<\/p>\n\n\n\n
\u8aad\u307f\u8fbc\u307f\u30b9\u30d4\u30fc\u30c9\u3082\u307f\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b\u305f\u3081\u306b\u4e00\u65e6\u30a2\u30f3\u30de\u30a6\u30f3\u30c8\u3057\u3066\u518d\u30de\u30a6\u30f3\u30c8\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
sudo umount \/mnt\/ltfs\nsudo ltfs -o devname=\/dev\/sg0 \/mnt\/ltfs<\/code><\/pre><\/div>\n\n\n\n
kaz@ubuntu-atx:~$ ll \/mnt\/ltfs\/\n\u5408\u8a08 11534340\ndrwxrwxrwx 2 kaz  kaz            0  6\u6708 28 11:03 .\/\ndrwxr-xr-x 3 root root        4096  6\u6708 28 10:45 ..\/\n-rwxrwxrwx 1 kaz  kaz  10737418240  6\u6708 28 11:05 test-10g.bin*\n-rwxrwxrwx 1 kaz  kaz   1073741824  6\u6708 28 10:50 test-1g.bin*\nkaz@ubuntu-atx:~$ time cat \/mnt\/ltfs\/test-10g.bin > \/dev\/null\n\nreal   \t1m39.005s\nuser   \t0m0.010s\nsys    \t0m2.373s<\/code><\/pre><\/div>\n\n\n\n
\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306f  103MB\/s \u304f\u3089\u3044\u3067\u3057\u305f\u3002\u30c6\u30fc\u30d7\u304c\u5dfb\u304d\u623b\u3063\u305f\u308a\u7d14\u7c8b\u306a\u8aad\u307f\u66f8\u304d\u4ee5\u5916\u306e\u6642\u9593\u3082\u3042\u308b\u306e\u3067\u3001\u7d50\u69cb\u30ab\u30c1\u30e3\u30ab\u30c1\u30e3\u3001\u30ad\u30e5\u30a4\u30fc\u30f3\u304c\u9577\u3044\u3067\u3059\u3002<\/p>\n\n\n\n
\u6700\u5f8c\u306b<\/h2>\n\n\n\n
\u3044\u3084\u3041\uff5e\u3001\u30c6\u30fc\u30d7\u306f\u304b\u3063\u3053\u3044\u3044\uff01\u3053\u3046\u306a\u3063\u3066\u304f\u308b\u3068\u30c6\u30fc\u30d7\u30ed\u30fc\u30c0\u30fc\u3082\u6b32\u3057\u304f\u306a\u308a\u307e\u3059\u306d\u3002\u3055\u3059\u304c\u306b\u904a\u3073\u3067\u4f7f\u3046\u306b\u306f\u4e2d\u53e4\u3067\u3082\u9ad8\u3044\u306e\u3067\u3001\u3082\u3063\u3068\u5b9f\u7528\u7684\u306a\u30ec\u30d9\u30eb\u3067\u8003\u3048\u308b\u3068LTO-7 (15TB)\u3084LTO-8 (30TB)\u3042\u305f\u308a\u304c\u3044\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u4e16\u4ee3\u5225\u306e\u5bb9\u91cf\u4e00\u89a7\uff08WikiPedia<\/a>\u3088\u308a\uff09<\/p>\n\n\n\n
\u4e16\u4ee3<\/th>\u975e\u5727\u7e2e\u6642<\/th>\u5727\u7e2e\u6642<\/th>\u4fa1\u683c(Amazon)<\/th>TB\u5358\u4fa1<\/th><\/tr><\/thead>
LTO-5<\/td>1.5TB<\/td>3.0TB<\/td>7,378\u5186<\/td>4,919\u5186<\/td><\/tr>
LTO-6<\/td>2.5TB<\/td>6.25TB<\/td>8,265\u5186<\/td>3,306\u5186<\/td><\/tr>
LTO-7<\/td>6TB<\/td>15TB<\/td>13,398\u5186<\/td>2,233\u5186<\/td><\/tr>
LTO-8<\/td>12TB<\/td>30TB<\/td>14,882\u5186<\/td>1,240\u5186<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
HDD\u4fa1\u683c\u304c\u9ad8\u9a30\u3057\u3066\u3044\u308b\u73fe\u5728\u3067\u306fHDD\u3078\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306f\u5272\u9ad8\u306b\u611f\u3058\u307e\u3059\u304c\u3001\u73fe\u5728\u306e\u4fa1\u683c\u3067\u306f10TB\u30af\u30e9\u30b9\u306e\u6700\u5b89\u304c 4,290\u5186\/TB\u300120TB\u30af\u30e9\u30b9\u306e\u6700\u5b89\u3060\u3068 3,998\u5186\/TB\u3067\u3059\u3002\u3053\u308c\u3092\u898b\u308b\u3068\u3084\u306f\u308a\u30c6\u30fc\u30d7\u306e\u65b9\u304c\u30b3\u30b9\u30c8\u9762\u3067\u306f\u5b89\u3044\u3067\u3059\u306d\u3002<\/p>\n\n\n\n
\u305f\u3060LTO-7\u306e\u975e\u5727\u7e2e\u8ee2\u9001\u901f\u5ea6\uff08\u30c9\u30e9\u30a4\u30d6\u306e\u7d20\u306e\u80fd\u529b\uff09\u306f300MB\/s\u3067LTO-10\u306b\u306a\u3063\u3066\u3082400MB\/s\u6b62\u307e\u308a\u3067\u3059\u3002\u3053\u308c\u306f\u3053\u306e\u30b5\u30a4\u30ba\u306e\u30c6\u30fc\u30d7\u3067\u306e\u7269\u7406\u7684\u9650\u754c\u306a\u3093\u3067\u3057\u3087\u3046\u3002\u8aad\u307f\u66f8\u304d\u306b\u3082\u306e\u51c4\u3044\u6642\u9593\u304c\u304b\u304b\u308b\u3001\u30c6\u30fc\u30d7\u306e\u5148\u982d\u306b\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u306b\u306f\u5dfb\u304d\u623b\u3059\u5fc5\u8981\u304c\u3042\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3092\u8003\u3048\u308b\u3068\u3001\u4e3b\u306b\u30c6\u30fc\u30d7\u306f\u6b21\u306e\u3088\u3046\u306a\u4f7f\u3044\u65b9\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u30fb\u8ffd\u52a0\u66f8\u304d\u8fbc\u307f\u306e\u307f\uff08\u524a\u9664\u3084\u7de8\u96c6\u306f\u3057\u306a\u3044\uff09
\u30fb\u57fa\u672c\u7684\u306b\u8aad\u307e\u306a\u3044\u30c7\u30fc\u30bf\uff08\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7528\uff09
\u30fb\u591c\u9593\u306e\u30d0\u30c3\u30c1\u51e6\u7406<\/p>\n\n\n\n
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