[B! xfs] hirose31ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

hirose31 id:hirose31

xfsã«é–¢ã™ã‚‹hirose31ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (21)

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ç¬¬4å›ž XFSåˆ©ç”¨æ™‚ã®ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°
ä»Šå›žã¯ã€XFSã‚’åˆ©ç”¨ã™ã‚‹éš›ã®ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã«ã¤ã„ã¦èª¬æ˜Žã™ã‚‹ã€‚ãƒ‡ã‚£ã‚¹ã‚¯ãƒ‘ãƒ¼ãƒ†ã‚£ã‚·ãƒ§ãƒ³ã®ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆã‚„ãƒžã‚¦ãƒ³ãƒˆã®éš›ã«é©åˆ‡ãªè¨å®šã‚’æ–½ã™ã“ã¨ã§ã€ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’æœ€é©åŒ–ã§ãã‚‹ã€‚ä»¥ä¸‹ã§ã¯ã€ã€ŒXFSã®ã‚µã‚¤ã‚ºæ‹¡å¼µã€ã€Œinodeã‚µã‚¤ã‚ºã®å¤‰æ›´ã€ã€Œbarrierã®ç„¡åŠ¹åŒ–ã€ã®3ã¤ã«ã¤ã„ã¦ã€é †ã«è§£èª¬ã—ã¦ã„ã“ã†ã€‚ XFSã®ã‚µã‚¤ã‚ºæ‹¡å¼µ XFSã§ã‚¢ãƒã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚°ãƒ«ãƒ¼ãƒ—ï¼ˆAGï¼‰ã®å€‹æ•°ãŒéžå¸¸ã«å¤šãï¼ˆæ•°ç™¾ä»¥ä¸Šï¼‰ãªã‚‹ã¨æ€§èƒ½ãŒåŠ£åŒ–ã™ã‚‹å ´åˆãŒã‚ã‚‹ã€‚é€šå¸¸å•é¡Œã«ãªã‚‹ã“ã¨ã¯ãªã„ãŒã€é‹ç”¨ä¸ã«XFSã®ã‚µã‚¤ã‚ºã‚’ç¶™ç¶šçš„ã«æ‹¡å¼µã—ãªãŒã‚‰åˆ©ç”¨ã™ã‚‹å ´åˆã«ã¯æ³¨æ„ãŒå¿…è¦ã¨ãªã‚‹ã€‚ XFSã®ã‚µã‚¤ã‚ºæ‹¡å¼µæ™‚ã¯ã€xfs_growfsã‚³ãƒžãƒ³ãƒ‰ã§ã‚µã‚¤ã‚ºã‚’è¿½åŠ ã™ã‚‹ã€‚XFSã‚’ç¸®å°ã™ã‚‹ã“ã¨ã¯ã§ããªã„ã€‚xfs_growfsã§ã®æ‹¡å¼µã¯ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚’ã‚·ã‚¹ãƒ†ãƒ ã«ãƒžã‚¦ãƒ³ãƒˆï¼ˆmountï¼‰ã—ãŸçŠ¶æ…‹ã§ã®ã¿å¯èƒ½ã§ã€å¿…è¦ã«å¿œã˜ã¦è‡ªå‹•çš„ã«AGãŒè¿½åŠ ã•ã‚Œã‚‹ã€‚ mkfs.xfsã¯åˆæœŸ
hirose31 2014/08/07
xfs
ãƒªãƒ³ã‚¯
ç¬¬1å›ž é«˜æ€§èƒ½ã€é«˜å¯ç”¨æ€§å‚™ãˆé€²åŒ–ã™ã‚‹XFS
Red Hat Enterprise Linux 7ï¼ˆRHEL7ï¼‰ã§ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã¨ãªã£ãŸã€ŒXFSã€ã¯ã€ç±³SGIï¼ˆSilicon Graphics Internationalï¼‰ç¤¾ãŒåŒç¤¾ã®UNIXç³»OSã€ŒIRIXã€ç”¨ã«é–‹ç™ºã—ãŸãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã§ã‚ã‚‹*1ã€‚1993å¹´ã®é–‹ç™ºé–‹å§‹ã‹ã‚‰20å¹´ä»¥ä¸Šã®æ´å²ã‚’æŒã¤ã€‚Linuxã«ã¯2000å¹´ã”ã‚ã‹ã‚‰ç§»æ¤ã•ã‚Œã€ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸è£½å“ãªã©ã§ä½¿ã‚ã‚Œã¦ããŸã€‚ç¾åœ¨ã§ã¯XFSã®ä¸»è¦ãªé–‹ç™ºè€…ã®ä½•äººã‹ã¯ç±³Red Hatç¤¾ã®ç¤¾å“¡ã¨ãªã£ã¦ãŠã‚Šã€é–‹ç™ºã®ä¸å¿ƒã¯Red Hatç¤¾ãŒæ‹…ã£ã¦ã„ã‚‹ã€‚ Red Hatè£½å“ã«ãŠã„ã¦ã‚‚ã€XFSã¯2009å¹´ã‹ã‚‰RHEL5ãŠã‚ˆã³RHEL6ã®ã‚¢ãƒ‰ã‚ªãƒ³è£½å“ã€ŒScala ble Filesystem Add-onã€ã¨ã—ã¦è²©å£²ã•ã‚Œã¦ã„ã‚‹ã€‚ã¾ãŸã€RHELãƒ™ãƒ¼ã‚¹ã®Software Defined Storageã§ã‚ã‚‹ã€ŒRed Hat Storageã€ã®åŸºç›¤æŠ€è¡“
hirose31 2014/08/05
xfs
ãƒªãƒ³ã‚¯
XFSv5 ã¯kernel3.15 + xfs_progs 3.2.0ä»¥ä¸Šã§å¯¾å¿œ
[ANNOUNCE] xfsprogs: v3.2.0 released! http://article.gmane.org/gmane.comp.file-systems.xfs.general/62552 ãã£ã‹ã‘ã¯ã“ã®MLã®ã‚ã‚‹ã‚¹ãƒ¬ãƒƒãƒ‰ã‹ã‚‰ã€‚ [samba-jp:22289] Re: ãƒ‡ã‚£ã‚¹ãƒˆãƒªãƒ“ãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³é¸æŠžã¨ãƒ•ã‚¡ã‚¤ãƒ«ã‚µãƒ¼ãƒãƒ¼é‹å–¶å½¢æ…‹ XATTR_SIZE_MAXãŒ64kã¨å®šç¾©ã•ã‚Œã¦ã„ã¦æ§‹é€ ä½“ã®å¤§ãã•ãŒã¾ããã‚“ãªæ„Ÿã˜ãªã®ã§æ•°åƒå€‹ã‹ãªãã¨ã–ã£ãã‚Šã€‚ å°ç”°åˆ‡ã•ã‚“ãŒèª¿ã¹ã¦ãã ã•ã£ã¦ï¼•åƒå€‹ä»¥ä¸Šè¨å®šã§ãã¾ã—ãŸã€‚ã¨ã®ã“ã¨ å‡ºæ¥ã‚‹ã¯ãšã ï¼ã§æ€ã„è¾¼ã¾ãšã«ã‚‚ã†ä¸€æ©ç¢ºèªä½œæ¥ã‚’ã™ã‚‹ã£ã¦ã„ã†ã®ã¯ãƒ›ãƒ³ãƒˆã«å¤§äº‹ã§ã™ãã€‚ Sambaã®MLã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã®è©±ã«ãªã£ã¡ã¾ã£ãŸãœã€‚ èª¿ã¹ãŸãƒ¡ãƒ¢ ------------------ xfs: increase number of ACL entries for V5
hirose31 2014/07/10
acl

centos

xfs
ãƒªãƒ³ã‚¯
FITRIM/discard - xfs.org
hirose31 2014/02/05
xfs

ssd
ãƒªãƒ³ã‚¯
Kazuho@Cybozu Labs: MySQL and the XFS stack overflow problem
I have heard that there have been talks at MySQL UC on running MySQL (InnoDB) on top of XFS for better write concurrency than ext3. Last weekend I had a chance to discuss on Twitter the xfs stack overflow probl em (that became apparent this month, on x86_64 systems with 8k stack) and how it would affect (if any) MySQL servers.Â If I understand correctly, the probl em is that stack overflow might occ
hirose31 2013/02/08
â˜…

xfs
ãƒªãƒ³ã‚¯
Formatting XFS for optimal performance on RAID10
hirose31 2012/12/13
agcount, agsize

xfs
ãƒªãƒ³ã‚¯
XFS optimisation - Sysadmin
General Allocation Groups Log Size A filesystem receiving many writes will benenfit from a larger log, however a larger log will result in a longer mount time following a crash [1]. In general a somewhat longer mount time following a crash seems to be a small price to pay for the improved performance. The maximum log size is 128MB mkfs.xfs -l size=128m filesystem Lazy Counters Lazy counters ma
hirose31 2012/10/30
xfs
ãƒªãƒ³ã‚¯
64bitãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ XFSã®å®Ÿè£…
XFSã®æ´å² XFSã¯Silicon Graphicsï¼ˆä»¥ä¸‹SGIï¼šç·¨æ³¨ï¼‰ãŒé–‹ç™ºã—ãŸã‚¸ãƒ£ãƒ¼ãƒŠãƒªãƒ³ã‚°ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã§ã‚ã‚‹ã€‚XFSã®é–‹ç™ºãŒé–‹å§‹ã•ã‚ŒãŸå½“æ™‚ã€SGIã¯ã™ã§ã«EFSï¼ˆExtent File Systemï¼‰ã¨ã„ã†ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚’æŒã£ã¦ã„ãŸã€‚SGIãŒXFSã§ç›®æŒ‡ã—ãŸã‚‚ã®ã¯ã€æ¬¡ä¸–ä»£ã®æ‹¡å¼µæ€§ã‚’è€ƒæ…®ã—ãŸ64bitãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚’æ–°è¦é–‹ç™ºã™ã‚‹ã“ã¨ã ã£ãŸã€‚ XFSã¯ã€1994å¹´å¾ŒåŠã«ãƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸIRIX 5.3ï¼ˆIRIX 5.3 with XFSï¼‰ã«åˆã‚ã¦æè¼‰ã•ã‚ŒãŸã€‚1996å¹´ã«IRIX 6.2ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã‚‹ã¨ã€å…¨SGIã‚·ã‚¹ãƒ†ãƒ ã«æ¨™æº–ã§ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã•ã‚Œã‚‹ã‚ˆã†ã«ãªã£ãŸã€‚1999å¹´å‰åŠã«ã¯Linuxã¸ç§»æ¤ã•ã‚Œã€GPLï¼ˆGNU General Public Licenseï¼‰ã®ä¸‹ã§ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã¨ã—ã¦å…¬é–‹ã•ã‚ŒãŸã€‚ æœ€åˆã®Linuxç”¨XFSã§ã‚ã‚‹XFS 1.0 for Linuxã¯ã€ã‚«ãƒ¼ãƒãƒ«2.4
hirose31 2010/04/26
é…å»¶ã‚¢ãƒã‚±ãƒ¼ã‚·ãƒ§ãƒ³ delayed allocation

xfs
ãƒªãƒ³ã‚¯
xfs stack overflow
Kazuho Oku @kazuho @kosaki55tea ã‚µãƒ¼ãƒç³»ã ã¨ã€ãƒ‡ã‚£ã‚¹ã‚¯ã«ãƒ‡ãƒ¼ã‚¿ã‚’ä¿å˜ã™ã‚‹ãŸãã„ã®ãƒ—ãƒã‚°ãƒ©ãƒ ã¯fsyncã—ã¾ãã‚‹ã—ã€ã‚ªãƒ³ãƒ¡ãƒ¢ãƒªã®ã‚„ã¤ã¯ swap ã«è½ã¡ã‚‹ã ã‘ãªã®ã§ã€ä¾‹å¤–ãƒ‘ã‚¹ã§ xfs ãŒå‘¼ã°ã‚Œã‚‹ã“ã¨ã¯ã€ã»ã¨ã‚“ã©ãªã„ã‚“ã˜ã‚ƒãªã„ã‹ãªãƒ¼ã¨ 2010-04-25 02:57:35
hirose31 2010/04/25
xfs

kazuho

kosaki
ãƒªãƒ³ã‚¯
9554 â€“ write barriers over device mapper are not supported
Most recent kernel where this bug did not occur: - Distribution: Debian Etch/Lenny/Sid/Experimental Hardware Environment: IBM ThinkPad T42 with internal harddisk Software Environment: martin@shambala> apt-show-versions | egrep "(xfsprogs|dmsetup|lvm2)" lvm2/sid uptodate 2.02.26-1+b1 xfsprogs/sid uptodate 2.9.4-2 dmsetup/sid uptodate 2:1.02.20-2 The internal harddisk is accessed by libata PATA. Pro
hirose31 2010/04/16
nobarrierï¼Bug 9554 - write barriers over device mapper are not supported Summary: write barriers over device mapper are not supported

xfs
ãƒªãƒ³ã‚¯
On XFS write barriers
hirose31 2009/04/30
LVMã¯ã•ã‚€ã¨nobarrierãŒåŠ¹ã‹ãªã„ã®ãŒ2.6.29ã§ç›´ã‚‹äºˆå®šã‚‰ã—ã„ã£ã¦ç›´ã£ãŸã®ã‹ãªï¼Ÿ

xfs

lvm
ãƒªãƒ³ã‚¯
Slides for MySQL User Conference 2009 Talks
Slides for my talks. Code described here is in the v3 Google patch .
hirose31 2009/04/29
Xen, KVMä¸Šã§å‹•ã‹ã—ãŸã¨ãã®ãƒ™ãƒ³ãƒã‚ã‚Š

mysql

xfs
ãƒªãƒ³ã‚¯
SSDã¨SATA RAIDã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯æ¯”è¼ƒ | OSDN Magazine
ã‚½ãƒªãƒƒãƒ‰ã‚¹ãƒ†ãƒ¼ãƒˆãƒ‰ãƒ©ã‚¤ãƒ–ï¼ˆSSDï¼šSolid State Driveï¼‰ã«ã¯ã€å¾“æ¥ã®ãƒ—ãƒ©ãƒƒã‚¿å›žè»¢å¼ã®ãƒãƒ¼ãƒ‰ãƒ‡ã‚£ã‚¹ã‚¯ãƒ‰ãƒ©ã‚¤ãƒ–ï¼ˆHDDï¼šHard Disk Driveï¼‰ã«ãªã„åˆ©ç‚¹ãŒæ•°å¤šãã‚ã‚‹ã€‚ç„¡éŸ³ã€ä½Žé›»åŠ›ã€ä½Žç†±æ”¾å‡ºæ€§ã€è€è¡æ’ƒæ€§ã€ãã—ã¦ç‰¹ã«é‡è¦ãªã®ãŒã‚·ãƒ¼ã‚¯ã‚¿ã‚¤ãƒ ã®æ¥µåº¦ã®çŸã•ã ã€‚SSDã«ã‚ˆã£ã¦ã©ã‚Œã»ã©ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãŒå‘ä¸Šã™ã‚‹ã®ã‹ã‚’ç¢ºã‹ã‚ã‚‹ãŸã‚ã«ã€ãƒŽãƒ¼ãƒˆPCã§åˆ©ç”¨ã§ãã‚‹æœ€æ–°ã®SSDã§Bonnie++ã«ã‚ˆã‚‹ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯è©•ä¾¡ã‚’è¡Œã£ãŸã€‚ ç°¡å˜ã«èª¬æ˜Žã™ã‚‹ã¨ã€SSDã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸æ–¹å¼ã«ã¯ã‚·ãƒ³ã‚°ãƒ«ãƒ¬ãƒ™ãƒ«ã‚»ãƒ«ï¼ˆSLCï¼‰ã¨ãƒžãƒ«ãƒãƒ¬ãƒ™ãƒ«ã‚»ãƒ«ã®2ã¤ãŒã‚ã‚Šã€æ™®é€šã¯SLCãƒ‰ãƒ©ã‚¤ãƒ–ã®ã»ã†ãŒãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã¯é«˜ã„ã€‚ èªã¿æ›¸ãã®é€Ÿåº¦ã€ãƒ•ã‚©ãƒ¼ãƒ ãƒ•ã‚¡ã‚¯ã‚¿ã€å®¹é‡ã¯SSDã”ã¨ã«ç•°ãªã‚‹ã€‚ä»Šå›žã¯Mtronè£½ã®SSDã‚’ã„ãã¤ã‹æ¤œè¨Žã—ãŸã€‚ãƒ•ã‚©ãƒ¼ãƒ ãƒ•ã‚¡ã‚¯ã‚¿ãŒ3.5ã‚¤ãƒ³ãƒã§ã‚‚2.5ã‚¤ãƒ³ãƒã§ã‚‚ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã¯å¤‰ã‚ãªã‹ã£ãŸã®ã§ã€ãã‚Œãªã‚‰2.5ã‚¤ãƒ³ãƒã®ãƒ‰ãƒ©ã‚¤ãƒ–
hirose31 2009/01/30
writeback nobhï¼nobarrier

ext3

xfs

ssd
ãƒªãƒ³ã‚¯
ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢RAIDã¨Linuxã‚«ãƒ¼ãƒãƒ«ã«ã‚ˆã‚‹ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAIDã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯æ¯”è¼ƒ | OSDN Magazine
æ–°ã—ã„ã‚µãƒ¼ãƒã«é«˜ä¾¡ãªãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢RAIDã‚«ãƒ¼ãƒ‰ã‚’ä»˜ã‘ã‚‹ã“ã¨ã§ã€ãƒ‡ã‚£ã‚¹ã‚¯ã‚¢ã‚¯ã‚»ã‚¹ã®é€Ÿåº¦ã¯ã©ã‚Œã»ã©å‘ä¸Šã™ã‚‹ã®ã ã‚ã†ã‹ã€‚Linuxã‚«ãƒ¼ãƒãƒ«ã«ã‚ˆã‚‹ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAIDã¨ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢RAIDã‚«ãƒ¼ãƒ‰ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã®é•ã„ã¯ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã§è©•ä¾¡ã§ãã‚‹ã€‚ç§ã®ç’°å¢ƒã§ã“ã®2ã¤ã®æ¡ä»¶ã‚’è©•ä¾¡ã—ãŸã¨ã“ã‚ã€ã„ãã¤ã‹èˆˆå‘³æ·±ã„çµæžœãŒå¾—ã‚‰ã‚ŒãŸã€‚ ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAIDã¨ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢RAIDã®åŒæ–¹ã«ã¤ã„ã¦ã€750GBã®Samsung SATAãƒ‰ãƒ©ã‚¤ãƒ–6å°ã‚’ä½¿ã£ã¦RAIDãƒ¬ãƒ™ãƒ«5ã€6ã€10ã®å„æ§‹æˆã‚’è©•ä¾¡ã—ãŸã€‚ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã®æ¸¬å®šã«ã¯Bonnie++ã¨IOzoneã®å„ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã‚’ç”¨ã„ãŸã€‚ã¾ãŸã€ãƒãƒ£ãƒ³ã‚¯ã‚µã‚¤ã‚ºãŒãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ã¾ãŸã¯ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã®RAIDæ§‹æˆã«ä¸Žãˆã‚‹å½±éŸ¿ã‚’ç¢ºã‹ã‚ã‚‹ãŸã‚ã«ã€ãƒãƒ£ãƒ³ã‚¯ã®å¤§ãã•ã‚’å¤‰ãˆã¦ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã‚’å®Ÿè¡Œã—ãŸã€‚ ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢RAIDã®è©•ä¾¡ã«ã¯ã€12ãƒãƒ¼ãƒˆã®Adaptecè£½SAS-31205 PCI Express
hirose31 2008/10/18
â˜…â˜…â˜…

raid

ext3

xfs

benchmark
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SSDã¨SATA RAIDã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯æ¯”è¼ƒ
ä¸€æ˜”å‰ã«æ¯”ã¹ã‚Œã°å®‰ä¾¡ã«ãªã£ãŸSSDã€‚ã‚·ãƒ¼ã‚¯ã‚¿ã‚¤ãƒ ã®ç‚¹ã§ã¯HDDã‚ˆã‚Šåœ§å€’çš„ã«å„ªã‚Œã¦ã„ã‚‹ã‚‚ã®ã®ã€HDDã‹ã‚‰ç§»è¡Œã™ã‚‹ä¾¡å€¤ã¯ã©ã®ãã‚‰ã„ã‚ã‚‹ã®ã ã‚ã†ã‹ã€‚å¹¾ã¤ã‹ã®æ¯”è¼ƒã‚’è¡Œã£ã¦ã¿ãŸã€‚ ã‚½ãƒªãƒƒãƒ‰ã‚¹ãƒ†ãƒ¼ãƒˆãƒ‰ãƒ©ã‚¤ãƒ–ï¼ˆSSDï¼šSolid State Driveï¼‰ã«ã¯ã€å¾“æ¥ã®ãƒ—ãƒ©ãƒƒã‚¿å›žè»¢å¼ã®ãƒãƒ¼ãƒ‰ãƒ‡ã‚£ã‚¹ã‚¯ãƒ‰ãƒ©ã‚¤ãƒ–ï¼ˆHDDï¼šHard Disk Driveï¼‰ã«ãªã„åˆ©ç‚¹ãŒæ•°å¤šãã‚ã‚‹ã€‚ç„¡éŸ³ã€ä½Žé›»åŠ›ã€ä½Žç†±æ”¾å‡ºæ€§ã€è€è¡æ’ƒæ€§ã€ãã—ã¦ç‰¹ã«é‡è¦ãªã®ãŒã‚·ãƒ¼ã‚¯ã‚¿ã‚¤ãƒ ã®æ¥µåº¦ã®çŸã•ã ã€‚SSDã«ã‚ˆã£ã¦ã©ã‚Œã»ã©ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãŒå‘ä¸Šã™ã‚‹ã®ã‹ã‚’ç¢ºã‹ã‚ã‚‹ãŸã‚ã«ã€ãƒŽãƒ¼ãƒˆPCã§åˆ©ç”¨ã§ãã‚‹æœ€æ–°ã®SSDã§Bonnie++ã«ã‚ˆã‚‹ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯è©•ä¾¡ã‚’è¡Œã£ãŸã€‚ ç°¡å˜ã«èª¬æ˜Žã™ã‚‹ã¨ã€SSDã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸æ–¹å¼ã«ã¯ã‚·ãƒ³ã‚°ãƒ«ãƒ¬ãƒ™ãƒ«ã‚»ãƒ«ï¼ˆSLCï¼‰ã¨ãƒžãƒ«ãƒãƒ¬ãƒ™ãƒ«ã‚»ãƒ«ã®2ã¤ãŒã‚ã‚Šã€æ™®é€šã¯SLCãƒ‰ãƒ©ã‚¤ãƒ–ã®æ–¹ãŒãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã¯é«˜ã„ã€‚ èªã¿æ›¸ãã®é€Ÿåº¦ã€ãƒ•ã‚©ãƒ¼ãƒ ãƒ•ã‚¡ã‚¯ã‚¿ã€å®¹é‡ã¯SSDã”ã¨ã«
hirose31 2008/10/14
ext3

xfs

benchmark

performance

ssd
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SSD vs. SATA RAID: A performance benchmark | Linux.com | The source for Linux information
By Ben MartinÂ¬ï¿½ï¿½ Without going into details, SSDs may use single-level cell (SLC) or multi-level cell storage, with SLC drives typically offering better performance. SSDs offer different read and write speeds, form factors, and capacity. I looked at several models from Mtron. The performance of the 3.5-inch and 2.5-inch form factors is identical, so you might as well get the 2.5-inch drive because
hirose31 2008/10/14
ext3

xfs

benchmark

performance

ssd
ãƒªãƒ³ã‚¯
Barriers and journaling filesystems [LWN.net]
Journaling filesystems come with a big promise: they free system administrators from the need to worry about disk corruption resulting from system crashes. It is, in fact, not even necessary to run a filesystem integrity checker in such situations. The real world, of course, is a little messier than that. As a recent discussion shows, it may be even messier than many of us thought, with the integr
hirose31 2008/09/09
ãƒãƒªã‚¢

filesystem

xfs
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Bonnie++ã‚’ä½¿ã£ãŸãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ æ€§èƒ½ã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ | OSDN Magazine
Bonnie++ã¯ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã«é–¢ã™ã‚‹æ§˜ã€…ãªã‚¿ã‚¹ã‚¯ã‚’ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã™ã‚‹ã“ã¨ãŒã§ãã‚‹ãƒ„ãƒ¼ãƒ«ã§ã€RAIDã®æ§‹æˆã‚„ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã®æ§‹æˆã‚„ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã®è¨å®šãªã©ã‚’å¤‰æ›´ã™ã‚‹éš›ã«å¤§ã„ã«å½¹ç«‹ã¤ã€‚ Bonnie++ã¯openSUSE 10.3ï¼ˆ1-ã‚¯ãƒªãƒƒã‚¯ãƒ»ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ï¼‰ã€Ubuntu Hardyã€æ¨™æº–ã®Fedora 9ãƒªãƒã‚¸ãƒˆãƒªãªã©ã‹ã‚‰å…¥æ‰‹å¯èƒ½ã ã€‚ä»Šå›žã¯64ãƒ“ãƒƒãƒˆç”¨Fedora 9ãƒªãƒã‚¸ãƒˆãƒªã‹ã‚‰ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ãŸã€‚ Bonnie++ã¯Ubuntuç”¨ã¨Fedoraç”¨ã®ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã§ã¯/usr/sbinã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã•ã‚Œã‚‹ã®ã«å¯¾ã—ã¦openSUSEã§ã¯/usr/binã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã•ã‚Œã‚‹ã€‚ãƒ«ãƒ¼ãƒˆãƒ¦ãƒ¼ã‚¶ã¨ã—ã¦èµ·å‹•ã™ã‚‹ã¨ã‚¨ãƒ©ãƒ¼ãŒå‡ºã¦å®Ÿè¡Œã§ããªã„ã®ã ãŒã€/usr/binã§ã¯ãªã/usr/sbinã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ã‚ã‚‹å ´åˆã€é€šå¸¸ã®ãƒ¦ãƒ¼ã‚¶ã¨ã—ã¦å®Ÿè¡Œã™ã‚‹ãŸã‚ã«ã¯ãƒ•ãƒ«ãƒ‘ã‚¹ã‚’æŒ‡å®šã™ã‚‹å¿…è¦ãŒãŠãã‚‰ãã‚ã‚‹ã ã‚ã†
hirose31 2008/09/09
â˜…â˜…â˜…ã€ã‚¸ãƒ£ãƒ¼ãƒŠãƒ«å†…ã®ãƒ¡ã‚¿ãƒ‡ãƒ¼ã‚¿ã‚’ä¿è·ã™ã‚‹ãŸã‚ã«æ›¸ãè¾¼ã¿ãƒãƒªã‚¢ã€‘

filesystem

xfs
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FileSystemé¸æŠžæ³• å¥¥å±±ã€€å¥ä¸€ 2004/08/29 Linuxã§ä½¿ãˆã‚‹ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ â— ext2/ext3 â— ReiserFS â— XFS â— JFS â— VFAT,NTFS,ç‰ã€…ã‚‚ä½¿ãˆã‚‹ãŒã€èµ·å‹•fsã«ã™ã‚‹ ã«ã¯â€¦ ext2/ext3 â— 2nd Extended fs/ 3rd Extended fs (ç¬¬2ç‰ˆï¿½
FileSystemé¸æŠžæ³• å¥¥å±±ã€€å¥ä¸€ 2004/08/29 Linuxã§ä½¿ãˆã‚‹ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ â— ext2/ext3 â— ReiserFS â— XFS â— JFS â— VFAT,NTFS,ç‰ã€…ã‚‚ä½¿ãˆã‚‹ãŒã€èµ·å‹•fsã«ã™ã‚‹ ã«ã¯â€¦ ext2/ext3 â— 2nd Extended fs/ 3rd Extended fs (ç¬¬2ç‰ˆæ‹¡å¼µfs / ç¬¬3ç‰ˆæ‹¡å¼µfs) ã®ç•¥ â— MINIX fs ãŒã€Œæ©Ÿèƒ½æ‹¡å¼µå‰ã®ç‰ˆã€ â€“ æœ€å¤§64Mbyteã®ãƒ‘ãƒ¼ãƒ†ã‚£ã‚·ãƒ§ãƒ³ã‚µã‚¤ã‚º â€“ 32æ–‡å—ã¾ã§ã®ãƒ•ã‚¡ã‚¤ãƒ«å â— Ext ã¯ MINIX fs ã‚’æ‹¡å¼µã—ãŸã‚‚ã® â€“ æœ€å¤§2Gbyte ã®ãƒ‘ãƒ¼ãƒ†ã‚£ã‚·ãƒ§ãƒ³ â€“ 255æ–‡å—ã¾ã§ã®ãƒ•ã‚¡ã‚¤ãƒ«å ext2/ext3 -ç¶šã- â— Ext2: â€“ 16Tbyte partition size â€“ 4Tbyte file size â€“ BSD Fast File Systemã‚’æ„è˜ã—ãŸ
hirose31 2007/11/07
filesystem

ext2

ext3

xfs

reiserfs

jfs
ãƒªãƒ³ã‚¯
http://tastic.brillig.org/~jwb/zfs-xfs-ext4.html
hirose31 2007/08/31
>XFS is very slow on all the metadata testsï¼XFSã¯ã€ãƒ•ã‚¡ã‚¤ãƒ«ã®ä½œæˆã€ç§»å‹•ã€å‰Šé™¤ãŒã‚¨ãƒ©ã‚¤é…ã„ã®ã§ç”¨é€”ã«ã‚ˆã£ã¦ã¯æ³¨æ„

filesystem

xfs

zfs

ext4
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