[B! device mapper] y_uukiã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

y_uuki id:y_uuki

device mapperã«é–¢ã™ã‚‹y_uukiã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (6)

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ç•ªå¤–ç·¨: LiveCDã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ï¼ˆ1ï¼‰
Linuxã‚’ãƒãƒ¼ãƒ‰ãƒ‡ã‚£ã‚¹ã‚¯ã¸ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã›ãšã«ä½¿ç”¨ã™ã‚‹LiveCD/DVDã‚‚åºƒãåˆ©ç”¨ã•ã‚Œã‚‹ã‚ˆã†ã«ãªã‚Šã€å¤šãã®ãƒ‡ã‚£ã‚¹ãƒˆãƒªãƒ“ãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ãŒå¾“æ¥ã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«åª’ä½“ï¼æ–¹æ³•ã«åŠ ãˆã€LiveCDã‚’ãƒªãƒªãƒ¼ã‚¹ã—ã¦ã„ã¾ã™ã€‚ã»ã¨ã‚“ã©ã®LiveCDã§ã¯squashfsã€tmpfsã€æ›´ã«AUFSã‚’ç”¨ã„ã€ãƒãƒ¼ãƒ‰ãƒ‡ã‚£ã‚¹ã‚¯ã¸ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ãªã„å½¢æ…‹ã‚’å®Ÿç¾ã—ã¦ã„ã¾ã™ãŒã€æœ¬è¨˜äº‹ã§ã¯ãã®ä»–ã®æ–¹æ³•ã‚‚å–ã‚Šä¸Šã’ã€è€ƒå¯Ÿã—ã¾ã™ã€‚ ãªãŠã€æœ¬è¨˜äº‹ã¯http://sourceforge.net/mailarchive/forum.php?thread_name=20986.1293537718%40jrobl&forum_name=aufs-usersã‚’å…ƒã«ã—ã¦ã„ã¾ã™ã€‚ å¤ä»£ã®æ§‹æˆ ä¸€èˆ¬çš„ã«Linux LiveCDã§ã¯ã‚·ã‚¹ãƒ†ãƒ ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ãŸçŠ¶æ…‹ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚’åœ§ç¸®ã—ã€èªã¿å–ã‚Šå°‚ç”¨ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚¤ãƒ¡ãƒ¼ã‚¸ã¨ã—ã¦åŽç´ã—ã¦ã‚ã‚Šã¾ã™ã€‚ã“ã®éš›ã«ç”¨
y_uuki 2015/01/13
linux

kernel

filesystem

device mapper
ãƒªãƒ³ã‚¯
https://people.redhat.com/heinzm/sw/dm/dm-repl/dm-replicator.pdf
y_uuki 2014/07/03
device mapper
ãƒªãƒ³ã‚¯
DRBD:What is DRBD
Reliable, high-performing, highly available enterprise storage
y_uuki 2014/07/02
lvm

DRBD

device mapper
ãƒªãƒ³ã‚¯
Device-mapper snapshot support
y_uuki 2014/03/22
device mapper

linux

kernel
ãƒªãƒ³ã‚¯
RedHat Device mapper (kernel part of LVM2 volume management)
Device mapper (kernel part of LVM2 volume management) Milan BroÅ¾ [email protected] Device mapper ... ï‚§ modular Linux 2.6 kernel driver ï‚§ framework for constructing new block devices and mapping them to existing block devices ï‚§ managed through API (IOCTL interface) ï‚§ libdevmapper, dmsetup command utility DM knows nothing about â— LVM (logical volumes, volume groups) â–º managed by userspace tools (LVM2
y_uuki 2014/03/22
Linux

kernel

device mapper
ãƒªãƒ³ã‚¯
device-mapperã®ä»•çµ„ã¿ (1) device-mapperã®æ¦‚è¦
device-mapperã¨ã„ã†ã®ã¯ã€ãƒ–ãƒãƒƒã‚¯å±¤ã®ä»®æƒ³åŒ–ãƒ¬ã‚¤ãƒ¤ã§ã‚ã‚Šã€ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢çš„ãªè¦³ç‚¹ã‹ã‚‰ã„ã†ã¨ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ã§ã‚ã‚‹ã€‚ target_typeã¨å‘¼ã°ã‚Œã‚‹ãƒ—ãƒ©ã‚°ã‚¤ãƒ³ã‚’ã‚«ãƒ¼ãƒãƒ«ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã¨ã—ã¦å®Ÿè£…ã™ã‚‹ã“ã¨ã§ã€device-mapperã®ä¸Šã«ä»®æƒ³çš„ãªãƒ–ãƒãƒƒã‚¯ãƒ‡ãƒã‚¤ã‚¹æ©Ÿèƒ½ã‚’å®Ÿç¾ã™ã‚‹ã“ã¨ãŒå¯èƒ½ã§ã‚ã‚‹ã€‚ device-mapperã¯ã€ä»®æƒ³çš„ãªãƒ–ãƒãƒƒã‚¯ãƒ‡ãƒã‚¤ã‚¹ã‚’ä½œæˆã—ã€ãã®ä»®æƒ³ãƒ‡ãƒã‚¤ã‚¹ã¯ã€å—ã‘å–ã£ãŸI/Oã‚’å‡¦ç†ã™ã‚‹ã€‚ã“ã“ã§é‡è¦ãªã®ã¯ã€ç‰©ç†çš„ãªãƒ–ãƒãƒƒã‚¯ãƒ‡ãƒã‚¤ã‚¹ãŒè¡Œã†ã¹ãå‡¦ç†ã‚’å®Œå…¨ã«emulateã™ã‚‹ã“ã¨ã§ã‚ã‚‹ã€‚ä»®æƒ³ãƒ‡ãƒã‚¤ã‚¹ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã¯ã€ãã‚ŒãŒä»®æƒ³çš„ã§ã‚ã‚‹ã‹ç‰©ç†çš„ã§ã‚ã‚‹ã‹ã‚’æ„è˜ã™ã‚‹ã“ã¨ãŒãªã„ã€‚ã¾ãŸã“ã‚Œã‚ˆã‚Šã€ä»®æƒ³ãƒ‡ãƒã‚¤ã‚¹ã¯ä»®æƒ³ãƒ‡ãƒã‚¤ã‚¹ã®ä¸Šã«ä½œæˆã™ã‚‹ã“ã¨ã‚‚å¯èƒ½ã§ã‚ã‚‹ã€‚ã“ã®ã‚ˆã†ãªç‰¹æ€§ã‹ã‚‰ã€device-mapperã«ã‚ˆã£ã¦ä½œæˆã•ã‚ŒãŸä»®æƒ³ãƒ‡ãƒã‚¤ã‚¹ã¯ã€â€œstacked device"ã¨ã‚‚å‘¼ã°ã‚Œã‚‹ã€‚device
y_uuki 2014/02/17
linux

kernel

device mapper
ãƒªãƒ³ã‚¯
1