[B! RAID] lockcoleã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

lockcole id:lockcole

RAIDã«é–¢ã™ã‚‹lockcoleã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (8)

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USBãƒ¡ãƒ¢ãƒªã«ã‚ˆã‚‹RAID0 - ãƒ•ãƒ„ãƒ¼ãªæ—¥å¸¸
å®Ÿé¨“ã«ä½¿ã£ãŸã®ã¯A-DATAã®USBãƒ¡ãƒ¢ãƒªã€‚2Gã§2000å††ã‚’åˆ‡ã‚‹å€¤æ®µã ã£ãŸã‘ã©ã€ä¸€å¿œReadyBoostå¯¾å¿œã‚’ã†ãŸã£ã¦ã„ã‚‹è£½å“ã ã€‚ ã¾ãšã¯4æœ¬ã§RAID0ã‚’æ§‹æˆã™ã‚‹ã€‚ sudo mdadm --verbose --create /dev/md0 --level=0 --raid-devices=4 /dev/sd[bcde] 4æœ¬ã‚’Linuxã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAIDã§ç¹‹ã„ã ã¨ãã®æ€§èƒ½ã€‚ã¾ãšã¯å˜ç´”ãªhdparamã«ã‚ˆã‚‹readæ€§èƒ½æ¸¬å®šã€‚ å˜ä½“ /dev/sdb: Timing buffered disk reads: 48 MB in 3.04 seconds = 15.80 MB/sec RAID0 /dev/md0: Timing buffered disk reads: 136 MB in 3.03 seconds = 44.83 MB/sec å˜ç´”ã«åˆç®—ã—ãŸã»ã©ã«ã¯ä¼¸ã³ã‚‹ã‚ã‘ã§ã¯ãªã„
lockcole 2009/02/06
USBãƒ¡ãƒ¢ãƒª4æœ¬ã§RAIDã€‚ramdom readæ€§èƒ½ã®å‘ä¸Šã¯ãƒ•ãƒ©ãƒƒã‚·ãƒ¥ãƒ¡ãƒ¢ãƒªãªã‚‰ã§ã¯ã€‚ãŸã writeã‚’è€ƒæ…®ã™ã‚‹ã¨ï¼ŒRAIDã®chunk sizeã‚’ãƒ•ãƒ©ãƒƒã‚·ãƒ¥ãƒ¡ãƒ¢ãƒªã®ãƒ–ãƒãƒƒã‚¯å˜ä½ã¨åŒã˜ã«ã—ãªã„ã¨æ€§èƒ½ãŒè½ã¡ã‚‹ã€‚readé‡è¦–ãªç”¨é€”ã§ä½¿ã„é“ãŒã‚ã‚‹ãƒ»ãƒ»ãƒ»ã‹ãªï¼Ÿ

RAID

USB
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Performance - Linux-raid
lockcole 2009/02/05
Linux RAIDã®æ€§èƒ½ã€‚ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯çµæžœã‚’è¦‹ã‚‹ã¨ï¼ŒRAID10ã‚„RAID0ã®æ€§èƒ½ãŒã„ã„ã®ã¯ã‚ˆãã‚ã‚‹çµæžœã ã¨ã—ã¦ï¼Œç‰¹ç†ã¯RAID 1ã®random readæ€§èƒ½å‘ä¸Šã€‚ã‚ˆããƒãƒ©ãƒ³ã‚¹ã•ã‚Œã¦ã„ã‚‹ã¿ãŸã„ã€‚

Linux

RAID

benchmark
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Linux-Kernel Archive: bonnie++ benchmarks for ext2,ext3,ext4,jfs,reiserfs,xfs,zfs onsoftware raid 5
lockcole 2007/09/05
ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAID5ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ï¼Œãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ é–“ã§ã®æ¯”è¼ƒã®ãŸã‚ã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã€‚

RAID

Linux
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Thecusã€iSCSIå¯¾å¿œã®5ãƒ™ã‚¤NASã‚ãƒƒãƒˆã€ŒN5200PROã€ | ãƒ‘ã‚½ã‚³ãƒ³ | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
iSCSIã«ã‚‚å¯¾å¿œã™ã‚‹NASã‚ãƒƒãƒˆã€ŒN5200PROã€ Thecus Techno logyã¯ã€Network Attached Storage(NAS)ã‚ãƒƒãƒˆã®æ–°è£½å“ã€ŒN5200PROã€ã‚’ç™ºè¡¨ã—ãŸã€‚ N5200PROã¯ã€5ã¤ã®3.5ã‚¤ãƒ³ãƒHDDãƒ™ã‚¤ã‚’æè¼‰ã—ã€æœ€å¤§ã§5TBã¾ã§ã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸å®¹é‡ã‚’å¯èƒ½ã¨ã™ã‚‹è£½å“ã€‚ãƒ©ã‚¤ãƒ³ã‚¢ãƒƒãƒ—ã«ã¯ã€2ç³»çµ±ã®ã‚®ã‚¬ãƒ“ãƒƒãƒˆã‚¤ãƒ¼ã‚µãƒãƒƒãƒˆ(GbE)ã‚’æè¼‰ã—ãŸã€ŒN5200B PROã€ã€1ç³»çµ±ã®GbEã¨4ãƒãƒ¼ãƒˆã®GbEã‚¹ã‚¤ãƒƒãƒã‚’æè¼‰ã—ãŸã€ŒN5200BR PROã€ãŒã‚ã‚‹ã€‚SCSIãƒ—ãƒãƒˆã‚³ãƒ«ã‚’TCP/IPãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ä¸Šã§åˆ©ç”¨ã™ã‚‹ã€ŒiSCSIã€ã‚‚ã‚µãƒãƒ¼ãƒˆã—ã€ä¿¡é ¼æ€§ã‚’è¦æ±‚ã•ã‚Œã‚‹ãƒ‹ãƒ¼ã‚ºã«ã‚‚å¯¾å¿œã™ã‚‹ã»ã‹ã€RAID 0é ˜åŸŸãŠã‚ˆã³RAID 5é ˜åŸŸã‚’è¤‡æ•°ç¢ºä¿ã§ãã‚‹ã€ŒMultiple RAIDã€ã«ã‚‚å¯¾å¿œã—ã¦ã„ã‚‹(åŒè£½å“ãŒå¯¾å¿œã™ã‚‹RAIDãƒ¬ãƒ™ãƒ«ã¯ã€RAID 0 / 1 / 5 / 6 / 10ãŠ
lockcole 2007/06/18
Celeron M 1.5GHzãŒè¼‰ã£ã¦ã‚‹RAIDå¯¾å¿œã®NASã€‚iSCSIãƒ—ãƒãƒˆã‚³ãƒ«ã«å¯¾å¿œã€‚RAIDãƒ¬ãƒ™ãƒ«ã¯0 / 1 / 5 / 6 / 10ãŠã‚ˆã³JBODã¨ã®ã“ã¨ã€‚å€¤æ®µãŒæ›¸ã„ã¦ã„ãªã„ãŒãƒ»ãƒ»ã€‚

NAS

RAID

storage
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Adaptecã¨Intelã€RAIDã‚½ãƒªãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã§ã®å”æ¥ã‚’å¼·åŒ–
lockcole 2007/06/13
Intelã¨AdaptecãŒRAIDã§å”æ¥ã™ã‚‹ã£ã¦ã“ã¨ã¯ï¼Œãƒãƒƒãƒ—ã‚»ãƒƒãƒˆå†…è”µã®RAIDã‚³ãƒ³ãƒˆãƒãƒ¼ãƒ©ã«ã‚‚ã“ã‚Œã‹ã‚‰å…ˆAdaptecãŒé–¢ã‚ã‚‹ã“ã¨ã‚‚ã§ãã‚‹ã‚ˆã†ã«ãªã‚‹ã®ã‹ãªã€‚ãã†ãªã£ã¦ãã‚Œã‚‹ã¨é¢ç™½ã„ã®ã ã‘ã©ã€‚

PC

RAID
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ç©¶æ¥µã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸i-ramï¼”æžšã§RAID0ã®æ§‹ç¯‰ãƒ»by Wallerã•ã‚“
ç©¶æ¥µã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸i-RAMï¼”æžšã§RAID0ã®æ§‹ç¯‰ãƒ»by Wallerã•ã‚“ã€Š06.10.8ã€‹ Wallerã•ã‚“ã®i-RAMï¼”æžšã§RAID0ã‚’æ§‹ç¯‰ã•ã‚Œã‚‹ã¾ã§ã®å±±ã‚ã‚Šè°·ã‚ã‚Šã®å¥®é—˜è¨˜ã§ã™ã€‚ 9æœˆ26æ—¥(ç«)ã€€i-RAM nLiteã§OSã‚’è»½é‡åŒ–ã—ã¦ã€ã‚®ã‚¬ãƒã‚¤ãƒˆã®i-RAM 4GBã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ã¿ã¾ã—ãŸã€‚ æ„Ÿæƒ³ã¯ãƒ»ãƒ»ãƒ»é€Ÿã„ã§ã™ã€‚ãƒ¢ã‚¿ãƒ„ã‚ãŒã¾ã£ãŸãã‚ã‚Šã¾ã›ã‚“ã€‚ ã‚‚ã†1æžšã»ã—ããªã£ã¦ãã¾ã—ãŸã€‚ã‚„ã°ã„ã“ã¨ã«ãªã‚Šãã†ã§ã™ã€‚ 9æœˆ29æ—¥(é‡‘)ã€€ã„ã£ã¦ã—ã¾ã„ã¾ã—ãŸã€‚ I-RAM3æžšæ³¨æ–‡ã—ã¾ã—ãŸã€‚åˆè¨ˆ4æžšã§ã™ã€‚ 3wareã®9550SXã«ã¤ãªã„ã§PCI-Xã§ä½¿ç”¨ã™ã‚‹ã¤ã‚‚ã‚Šã§ã™ã€‚ æ¥ãšã‹ã—ãªãŒã‚‰ã€æœ€è¿‘ã€PCã„ã˜ã‚Šã«ã®ã‚ã‚Šã“ã‚“ã§ã—ã¾ã£ã¦ã¾ã™ã€‚ ã“ã“ä½•å¹´ã‹ã¯å°å°ã—ã¦ã„ãŸã®ã«ã€ä¸€æ°—ã«ã¯ã˜ã‘ãŸæ„Ÿã˜ã§ã™ã€‚ãƒã‚¤ã€‚ 9æœˆ30æ—¥(åœŸ)ã€€ã‚ã„ãŸãŸãŸï¼ 3ware9550sxã£ã¦i-RAMèªè˜ã—ãªã„ã‚“ã§ã™ãã‡ã€‚ãŒã£ãã‚Šã§ã™ã€‚ 10
lockcole 2006/11/01
é€Ÿåº¦ã®ã¿ã‚’è¿½æ±‚ã—ã¾ãã£ãŸã‚‰ã“ã†ãªã‚‹ã£ã¦è¦‹æœ¬ã‹ã€‚é›»æºã•ãˆå®‰å®šã—ã¦ã„ã‚Œã°ï¼Œã‚€ã—ã‚HDDã‚ˆã‚Šã‚‚å£Šã‚Œã«ãã‹ã£ãŸã‚Šã™ã‚‹ã‹ã‚‚ã—ã‚Œãªã„ã€‚ã‹ã‘ãŸå€¤æ®µã‚‚ã¨ã¦ã¤ã‚‚ãªã„ï½—ï½—

RAID

PC
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RAID01ã¨RAID10ã®é•ã„
RAID01ã¨RAID10ã«é•ã„ã£ã¦ã”å˜çŸ¥ã§ã™ã‹ï¼Ÿå°‚é–€å®¶ã‚„ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ãƒ™ãƒ³ãƒ€ãƒ¼ã®ãƒ›ãƒ¼ãƒ ãƒšãƒ¼ã‚¸ã§ã•ãˆä¸¡è€…ã¯åŒã˜ã‚‚ã®ã§ã‚ã‚‹ã¨èª¬æ˜Žã•ã‚Œã¦ã„ã‚‹å ´åˆãŒã‚ã‚Šã¾ã™ãŒã€å®Ÿã¯æ˜Žç¢ºã«é•ã„ã¾ã™ã€‚ãƒã‚¤ã‚¨ãƒ³ãƒ‰ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’å°Žå…¥ã™ã‚‹ã¨ãã«ã¯ã“ã®é•ã„ã«ã¤ã„ã¦ã®ç†è§£ãŒã¨ã¦ã‚‚å¤§åˆ‡ã«ãªã£ã¦ãã¾ã™ã®ã§ãã¡ã‚“ã¨æŠ¼ã•ãˆã¦ãŠãã¨ã‚ˆã„ã¨æ€ã„ã¾ã™ã€‚ RAID01ã¨ã¯ï¼Ÿ ã‚¹ãƒˆãƒ©ã‚¤ãƒ”ãƒ³ã‚°ã‚°ãƒ«ãƒ¼ãƒ—ã‚’ãƒŸãƒ©ãƒ¼ãƒªãƒ³ã‚°ã—ãŸã‚‚ã®ãŒRAID01(ã‚‚ã—ãã¯RAID0+1ã¨ã‚‚å‘¼ã°ã‚Œã‚‹)ã«ãªã‚Šã¾ã™ã€‚ HDD[1]ï½ž[4]ã§æ§‹æˆã•ã‚ŒãŸã‚¹ãƒˆãƒ©ã‚¤ãƒ”ãƒ³ã‚°ã‚°ãƒ«ãƒ¼ãƒ—ï¼‘ã¨HDD[5]ï½ž[8]ã§æ§‹æˆã•ã‚ŒãŸã‚¹ãƒˆãƒ©ã‚¤ãƒ”ãƒ³ã‚°ã‚°ãƒ«ãƒ¼ãƒ—ï¼’ãŒã‚ã£ãŸã¨ã—ã¾ã™ã€‚ ã“ã®æ§‹æˆæ™‚ã€ä¾‹ãˆã°ã‚¹ãƒˆãƒ©ã‚¤ãƒ”ãƒ³ã‚°ã‚°ãƒ«ãƒ¼ãƒ—ï¼‘ã®HDD[1]ãŒæ»äº¡ã—ãŸå ´åˆã¯ã‚°ãƒ«ãƒ¼ãƒ—ï¼‘ã®ã‚¹ãƒˆãƒ©ã‚¤ãƒ”ãƒ³ã‚°ãŒä½¿ãˆãªããªã‚Šã¾ã™ã€‚ã‚ˆã£ã¦ã“ã®çŠ¶æ…‹ã§ã¯ã‚¹ãƒˆãƒ©ã‚¤ãƒ”ãƒ³ã‚°ã‚°ãƒ«ãƒ¼ãƒ—ï¼’ã ã‘ãŒå‹•ã„ã¦ã„ã‚‹çŠ¶æ…‹ã«ãªã‚‹ã‚ã‘ã§ã™ã‹ã‚‰ã€ã“ã®æ™‚HDD[5][6][7][8]
lockcole 2006/07/30
ã‚¹ãƒˆãƒ©ã‚¤ãƒ”ãƒ³ã‚°ã—ãŸã‚°ãƒ«ãƒ¼ãƒ—ã‚’ãƒŸãƒ©ãƒ¼ãƒªãƒ³ã‚°ã—ã¦ã„ã‚‹ã®ãŒRAID01ï¼ŒãƒŸãƒ©ãƒ¼ãƒªãƒ³ã‚°ã—ãŸã‚°ãƒ«ãƒ¼ãƒ—ã‚’ã‚¹ãƒˆãƒ©ã‚¤ãƒ”ãƒ³ã‚°ã—ãŸã®ãŒRAID10ã€‚å½“ç„¶ï¼ŒRAID10ã®æ–¹ãŒå®‰å…¨ã€‚

RAID

HDD
ãƒªãƒ³ã‚¯
RAIDã®åˆ†ã‹ã‚Šã‚„ã™ã„èª¬æ˜Ž
lockcole 2006/01/25
ã‚„ã£ã°ã„ã“ã‚Œã™ã£ã”ã„ã‚ã‹ã‚Šã‚„ã™ã„ã€‚RAID0ï¼ŒHot swapã«ç¬‘ã£ã¦ã—ã¾ã£ãŸã€‚RAID5ã¯ç„¡ç†çŸ¢ç†ã£ã½ã„ã€‚RAID0+1ã¯ã‚‚ã†ä½•ãŒãªã‚“ã ã‹ã€‚

ãƒã‚¿

PC

RAID
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1