《LSI MegaRAID SAS 9260-8i》MegaRAID Storage Manager（MSM）をインストールã™ã‚‹ ã€Linux CentOS6.2 64bit版】
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Saving capacity with HDFS RAID | Engineering Blog | Facebook Code | Facebook
As we continue to evolve our data infrastructure, we’re constantly looking for ways to maximize the utility and efficiency of our systems. One technology we’ve deployed is HDFS RAID, an implementation of Erasure Codes in HDFS to reduce the replication factor of data in HDFS. We finished putting this into production last year and wanted to share the lessons we learned along the way and how we incre
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DELL PERC5ã®ã‚¹ãƒ†ãƒ¼ã‚¿ã‚¹å–å¾—(MegaCli) - satospo
DELL PowerEdge1950/2950シリーズãªã©ã®ã‚ªãƒ—ションã§é¸æŠžã§ãã‚‹RAIDボード「PERC5/iã€ã¯LSI Logic社ã®OEM製å“ã®ã‚ˆã†ã§ã™ã€‚ Linuxã§ã¯ã€FedoraCore6ã‚„CentOS 4.5/5ã ã¨æ¨™æº–ã®ãƒ‰ãƒ©ã‚¤ãƒã§èªè˜ã—ã¦åˆ©ç”¨å¯èƒ½ã§ã™ã€‚CentOS4ã®åˆæœŸãƒãƒ¼ã‚¸ãƒ§ãƒ³ã®å ´åˆã¯ã€åˆ¥é€”ドライãƒãƒ‡ã‚£ã‚¹ã‚¯ãŒå¿…è¦ã«ãªã‚Šã€ã“ã‚Œã¯DELLã®ã‚µã‚¤ãƒˆã‹ã‚‰å…¥æ‰‹å¯èƒ½ã§ã™ã€‚ ã—ã‹ã—ãªãŒã‚‰ã€ãƒ‰ãƒ©ã‚¤ãƒã ã‘ã§ã¯RAIDアレイやディスクã®ã‚¹ãƒ†ãƒ¼ã‚¿ã‚¹ãŒLinux上ã§è§£ã‚‰ãªã„ã®ã§ã€ä½•ã‚‰ã‹ã®ç®¡ç†ãƒ„ールãŒå¿…è¦ã§ã™ã€‚CentOS 4/5ã‚„RHEL 3/4/5ã®i386版ã§ã¯DELL OMSAを利用ã™ã‚‹ã®ãŒæ‰‹ã£å–ã‚Šæ—©ã„ã§ã™ã€‚ OMSA以外ã§ã¯LSI Logicã®ã‚µã‚¤ãƒˆã§å…¬é–‹ã•ã‚Œã¦ã„ã‚‹MegaCliã¨è¨€ã†ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ãƒ„ールを使ã£ã¦ã‚¹ãƒ†ãƒ¼ã‚¿ã‚¹ã‚’å–å¾—ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ã“ã“ã§ã¯ã€OMSAを使ã‚ãšã«Me
RAID 5+0
RAID 5+0ã¯RAID5を複数グループ用æ„ã—ã€RAID0ã®æ–¹å¼ã«ã‚ˆã‚Šã‚¹ãƒˆãƒ©ã‚¤ãƒ—ã—ãŸã‚‚ã®ã§ã™ã€‚ 複数ã®RAID5をストライピングã™ã‚‹ã“ã¨ã§ã€ä¸Šè¿°ã®1個ã®ã‚°ãƒ«ãƒ¼ãƒ—ã«ã¤ã1個ã®ãƒ‡ã‚£ã‚¹ã‚¯æ•…障を救済ã™ã‚‹ã“ã¨ãŒã§ãã€RAID5ã¨æ¯”較ã—ã¦å¤§å®¹é‡æ§‹æˆæ™‚ã«ã¯é«˜ã„ä¿¡é ¼æ€§ã‚’å®Ÿç¾ã§ãã¾ã™ã€‚ ã¾ãŸã€RAID5ã€RAID6ã§ã¯ãƒ‡ã‚£ã‚¹ã‚¯æ•…障時ã®ãƒªãƒ“ルド処ç†ã¯RAIDé…列ãŒå¤§ãã„ã»ã©é…ããªã‚Šã¾ã™ãŒã€RAIDé…列をå°ã•ãã§ãã‚‹RAID5+0ã§ã¯ã€ãƒªãƒ“ルド時間をçŸãã™ã‚‹äº‹ãŒã§ãã¾ã™ã€‚
CentOSã§ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAIDã®æ§‹ç¯‰ - maruko2 Note.
CentOSã§ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAIDã®æ§‹ç¯‰ æ供：maruko2 Note. 移動： 案内, 検索 目次 1 ディスク㫠RAID ç”¨ãƒ‘ãƒ¼ãƒ†ã‚£ã‚·ãƒ§ãƒ³ã‚’ä½œæˆ 1.1 fdisk コマンド㧠RAID ç”¨ãƒ‘ãƒ¼ãƒ†ã‚£ã‚·ãƒ§ãƒ³ã‚’ä½œæˆ 2 mdadm コマンド㧠RAID ã‚¢ãƒ¬ã‚¤ã‚’ä½œæˆ 2.1 RAID ã®çŠ¶æ…‹ã‚’表示ã™ã‚‹ 3 /etc/mdadm.conf ã‚’ä½œæˆ 4 RAID アレイã«ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ を作æˆã—マウントã™ã‚‹ 5 RAID アレイを監視ã™ã‚‹ 6 RAID アレイを解除ã™ã‚‹ 7 関連ページ 8 脚注 CentOS ã§ã¯ mdadm コマンドを使ã„ã€ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ RAID (Linux Software RAID) を構築ã™ã‚‹ã“ã¨ãŒã§ãる。 RAID レベルã¨ã—㦠RAID0/1/4/5/6/10 ãŒã‚µãƒãƒ¼ãƒˆã•ã‚Œã¦ã„る。 大ã¾ã‹ãªæ‰‹é †ã¯æ¬¡ã®ã‚ˆã†ã«ãªã‚‹ã€‚ RAID を構æˆã™ã‚‹ãƒ‡ã‚£ã‚¹ã‚¯ã« RAID
[Debian] mdadmを利用ã—ãŸã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAID 5ã®æ§‹ç¯‰
HDD4å°ã§ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAID 5を構築ã—ãŸæ™‚ã®ãƒ¡ãƒ¢ã€‚ RAIDã®ãƒ¡ãƒ³ãƒã¨ãªã‚‹ã®ã¯sdb, sdc, sdd, sde。パーティションå˜ä½ã§æ§‹ç¯‰ã§ãã‚‹ã®ã§ã€å®¹é‡ãŒä¸æƒã„ãªå ´åˆæœ€å°ã¨ãªã‚‹å®¹é‡ã§ãƒ‘ーティションをãã‚Œãžã‚Œä½œã‚Šã€ä½™ã£ãŸéƒ¨åˆ†ã§ã•ã‚‰ã«RAIDを組んã ã‚Šã€å˜ä½“ã®ãƒ‰ãƒ©ã‚¤ãƒ–ã¨ã—ã¦åˆ©ç”¨ã™ã‚‹ã¨å¹¸ã›ã«ãªã‚Œãã†ã§ã™ã€‚ mdadmã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ« # apt-get install mdadm fdiskã§RAIDã®ãƒ¡ãƒ³ãƒã¨ãªã‚‹ãƒ‘ーティションã®ä½œæˆ sdb, sdc, sdd, sdeãã‚Œãžã‚ŒåŒã˜å®¹é‡ã«ãªã‚‹ã‚ˆã†ã«1ã¤ã®ãƒ‘ーティションを作æˆã€‚RAIDã®ãƒ¡ãƒ³ãƒã«ã™ã‚‹ãƒ‘ーティションã¯ãã‚Œãžã‚Œæ¬¡ã®ã‚ˆã†ã«ã—ãŸã€‚ プライマリパーティション (パーティション番å·1) システムID: FD (Linux RAID) RAIDã®æ§‹ç¯‰ # mdadm -C /dev/md0 -l5 -n4 -f /dev/sd[bcde
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2.ソフトウェアRAID(第2ç« ãƒ‡ã‚£ã‚¹ã‚¯ç®¡ç†ã€œä¸Šç´š:基本管ç†ã‚³ãƒ¼ã‚¹II)
安価ãªãƒ‡ã‚£ã‚¹ã‚¯ã‚’組ã¿åˆã‚ã›ãŸä¿¡é ¼æ€§ã®é«˜ã„大容é‡ãƒ‡ã‚£ã‚¹ã‚¯ã‚¢ãƒ¬ã‚¤ã®å½¢æˆ RAIDコントãƒãƒ¼ãƒ©ãƒ¼ãªã©ã®ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ãŒãªãã¦ã‚‚構築å¯èƒ½ RAIDã«ã¯æ¬¡ã®ç¨®é¡žãŒã‚ã‚Šã¾ã™ リニアモード RAID-0 RAID-1 RAID-5 ソフトウェアRAID RAIDã¯ã€ŒRedundant Array of Inexpensive Disksã€ã®ç•¥ã§ã€å®‰ä¾¡ãªãƒ‡ã‚£ã‚¹ã‚¯ã‚’組ã¿åˆã‚ã›ã¦ã€ä¿¡é ¼æ€§ã®é«˜ã„大容é‡ãƒ‡ã‚£ã‚¹ã‚¯ã‚¢ãƒ¬ã‚¤ã‚’å½¢æˆã—よã†ã¨ã„ã†ã‚‚ã®ã§ã™ã€‚実際ã®æ©Ÿèƒ½ã¨ã—ã¦ã¯ã€ãƒ‘ーティションを組ã¿åˆã‚ã›ã¦RAID構æˆã‚’作るã‚ã‘ã§ã™ãŒã€1å°ã®ãƒ‡ã‚£ã‚¹ã‚¯ã‚’複数パーティションã«åˆ†ã‘ã¦çµ„ã¿åˆã‚ã›ã¦ã‚‚æ„味ã¯ã‚ã‚Šã¾ã›ã‚“。高性能ã€é«˜ä¿¡é ¼æ€§ã‚’å¾—ã‚‹ãŸã‚ã«ã¯ã€è¤‡æ•°å°ã®ãƒ‡ã‚£ã‚¹ã‚¯ã§RAIDシステムを構æˆã—ã¦ãã ã•ã„。 ã“ã“ã§èª¬æ˜Žã™ã‚‹ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢RAIDã¯ã€RAIDã®æ©Ÿèƒ½ã‚’カーãƒãƒ«ã§å®Ÿç¾ã—ã¾ã™ã€‚ã—ãŸãŒã£ã¦RAIDコントãƒãƒ¼ãƒ©ãƒ¼ãªã©ã®ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ãŒãªã„å ´åˆã«
RAID Controller Features
With RAID technology, data is striped across an array (a group) of hard disk drives. Striping is the process of storing data across all the disk drives that are grouped in an array. This data distribution scheme complements the way the operating system requests data. The following features further enhance the performance of your PS/2 Server 95A. Overlapped Input/Output Operation Interleave Depth
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ディスクアレイã¨ã¯ã€è¤‡æ•°ã®ãƒ‡ã‚£ã‚¹ã‚¯ã‚’並列ã«ä¸¦ã¹ã¦ã€1ã¤ã®ãƒ‡ãƒ¼ã‚¿ã‚’複数ã®ãƒ‡ã‚£ã‚¹ã‚¯ã«ä¸¦åˆ—処ç†ã§åŒæ™‚ã«èªã¿æ›¸ãã™ã‚‹ã“ã¨ã«ã‚ˆã£ã¦ã€é«˜é€ŸåŒ–を実ç¾ã™ã‚‹æŠ€è¡“ã§ã™ã€‚ RAIDã¯ã€ãƒ‡ã‚£ã‚¹ã‚¯ã‚¢ãƒ¬ã‚¤æŠ€è¡“ã«æ›´ã«å†—長性をæŒãŸã›ã€å¯ç”¨æ€§ã«å„ªã‚ŒãŸæŠ€è¡“ã§ã™ã€‚ã¾ãŸã€RAIDã¯0ã‹ã‚‰6ã¾ã§ã®ãƒ¬ãƒ™ãƒ«ãŒã‚ã‚Šã¾ã™ã€‚ ディスクアレイ RAID
SSD vs. SATA RAID: A performance benchmark | Linux.com | The source for Linux information
By Ben Martin¬�� 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
I plan on booting from the 9500S, 9550SX(U), 9590SE, 9650SE, and 9690SA controllers. I am running different, 'officially unsupported' versions of Linux (Fedora, Cent OS, AS/ES/WS 4.0 and 3.0, CentOS and others), where can I find driver install disks to ac
Q14546 - Driver Problems: I plan on booting from the 9500S, 9550SX(U), 9590SE, 9650SE, and 9690SA controllers. I am running different, 'officially unsupported' versions of Linux (Fedora, Cent OS, AS/ES/WS 4.0 and 3.0, CentOS and others), where can I find driver install disks to accomplish the installs? How about FreeBSD 6? Also, where I get the linux driver source for the 7000/8000 series controll
Transtronics electronics
Transtronics Home of Automation In business since 1979. We've been 'on-the-web' since 1994; where were you? Shopping Cart    Resource Articles DC Battery backup for 12 and 24 VDC UPS PLC's Programmable Logic Controllers. Toshiba's automation - You know the name (yes, it is the right choice!) Digital Process control Panel meters, Voltage, True RMS, thermal-couple, RTD, 4-20 mA, pulse, compatible.
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Configuring smartmontools for LSI 9750 RAID Controller on XenServer - Info - Confluence
Director 5.20 マニュアル
https://b.hatena.ne.jp/naoya/3ware/
IBM Support - IBM ServeRAID-8e SAS/SATA II hot-swap drivers for Red Hat Linux (32-bit) - Servers and IntelliStation
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