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FreeBSD 7.x¿¡¼ ZFS »ç¿ë & ¼º´É
ÀÛ¼ºÀÏ : 2009/02/25 18:52
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Á¦ ¸ñ : FreeBSD 7.x¿¡¼ ZFS »ç¿ë & ¼º´É
ÀÛ¼ºÀÚ : ÁÁÀºÁøÈ£(truefeel)
ÀÛ¼ºÀÏ : 2009.2.16(¿ù)
Á¤¸®ÀÏ : 2009.2.20(±Ý)
FreeBSD 7.0ºÎÅÍ´Â ¿ÀǼֶ󸮽ºÀÇ ZFS(Zettabyte File System)À» »ç¿ëÇÒ ¼ö ÀÖ´Ù. ZFS´Â ÆÄÀϽýºÅÛ°ú º¼·ý°ü¸®ÀÚ°¡ ÅëÇյǾî ÀÖ´Â ÀåÁ¡À» ÃÖ´ëÇÑ »ì·Á Çѵΰ³ÀÇ °úÁ¤¸¸À¸·Î ÆÄÀϽýºÅÛÀ» ¹Ù·Î »ç¿ëÇÒ ¼ö ÀÖ´Ù. ¶ÇÇÑ ¸¶Ä¡ ÂûÈëÀ» ºÙ¿´´Ù ¶¼¾ú´Ù ÇÏ´Â µíÇÑ ´À³¦À¸·Î º¼·ý °ü¸®ÀÇ À¯¿¬¼ºÀ» ¸À º¼ ¼ö ÀÖ´Ù. ±×·¯³ª FreeBSD¿¡¼´Â ¾ÆÁ÷ ½ÇÇèÀûÀ¸·Î µ¿ÀÛÁßÀ̸ç, IO ¼º´É ¶ÇÇÑ ¸¸Á·½º·´Áö ¸øÇÏ´Ù. °á±¹ FreeBSD¿¡¼ ¸¸ÅÀº ¹Ì·¡¸¦ À§ÇØ ¸Àº¸±â¿ë ÆÄÀϽýºÅÛ·Î Áñ±â¸é µÉ µí ½Í´Ù.
°£´ÜÇÑ ZFSÀÇ Æ¯Â¡À» Á¤¸®Çϸé.
- ÆÄÀϽýºÅÛ + º¼·ý°ü¸®ÀÚ°¡ ÅëÇյǾú´Ù.
- 128ºñÆ® ÆÄÀϽýºÅÛÀ̸ç, µð·ºÅ丮¿Í ÆÄÀÏÀÇ °¹¼ö¿¡ Á¦ÇÑÀÌ ¾ø´Ù.
- ¹Ì·¯¸µ, ±×¸®°í RAID±â´É¿¡ ÇØ´çÇÏ´Â raidz¸¦ Áö¿øÇÑ´Ù.
- ¹°¸®Àû disk¸¦ ½±°Ô ½ºÅ丮Áö Ç®¿¡ Ãß°¡ÇÒ ¼ö ÀÖ´Ù.
- »óÅ ¸ð´ÏÅ͸µÀÌ È¿°úÀûÀÌ´Ù. (iostat, status, history, get µî)
- ½º³À¼¦ ±â´ÉÀ» Áö¿øÇÑ´Ù.
1. ZFS Ç®°ú ÆÄÀϽýºÅÛ »ý¼º (zpool create, zfs create, zpool list, zfs list)
#
zpool create data mfid0s1h
#
zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
data 31.8G 110K 31.7G 0% ONLINE -
#
df -t zfs
Filesystem 1K-blocks Used Avail Capacity Mounted on
data 32771968 0 32771968 0% /data
zpool create ¸í·É¸¸À¸·Î ½±°Ô '½ºÅ丮Áö Ç®'À» »ý¼ºÇß´Ù. ÀÌ ¸í·É Çϳª¸¸À¸·Î ¹Ù·Î ÆÄÀϽýºÅÛÀ» ÀÌ¿ëÇÒ ¼ö°¡ ÀÖ´Ù. ¸Å¿ì °£´ÜÇÏÁö ¾Ê´Â°¡?
¸®´ª½ºÀÇ LVM°ú ºñ±³Çغ¸ÀÚ. LVMÀº PV »ý¼º -> VG »ý¼º -> LV »ý¼ºÀÇ 3°úÁ¤À» °ÅÃÄ¾ß ÇÑ´Ù. 1) µð½ºÅ©³ª ÆÄƼ¼ÇÀ» LVMÀ¸·Î »ç¿ëÇÏ°Ú´Ù°í ¼±¾ðÇÏ´Â PV(Physical Volume) »ý¼º(pvcreate) °úÁ¤. 2) ÀÌÈÄ PV¸¦ ÇϳªÀÇ Å« µ¢¾î¸®·Î ¹´Â VG(Volume Group) »ý¼º(vgcreate) °úÁ¤. 3) ÇÊ¿äÇÑ ¸¸Å¸¸ ¶¼¾î ³»¾î ½ÇÁ¦ »ç¿ë°¡´ÉÇÑ ÆÄÀϽýºÅÛÀ¸·Î ¸¸µå´Â LV(Logical Volume) »ý¼º °úÁ¤. ÀÌ¿Í ºñ±³Çϸé zfs´Â Á¤¸» °£´ÜÇÏ´Ù.
ÀÌÁ¦ ÇϳªÀÇ Ç®¿¡ ¿©·¯ ÆÄÀϽýºÅÛÀ» ¸¸µé¾îº¸ÀÚ.
#
zfs create data/backup
#
zfs create data/log
#
zfs create data/photo
#
zfs list
NAME USED AVAIL REFER MOUNTPOINT
data 182K 31.3G 22K /data
data/backup 18K 31.3G 18K /data/backup
data/log 18K 31.3G 18K /data/log
data/photo 18K 31.3G 18K /data/photo
data Ç®¿¡ data/backup, data/log, data/photo ÆÄÀϽýºÅÛÀ» »ý¼ºÇß´Ù. ±×·±µ¥ ¸¶¿îÆ®Æ÷ÀÎÆ®°¡ ¸ðµÎ /data ¾Æ·¡·Î »ý¼ºµÇ¾ú´Âµ¥, ´Ù¸¥ °÷À¸·Î ÇÒ ¼ö´Â ¾øÀ»±î? zfs set ¸í·É Çϳª¸é ¹Ù·Î º¯°æ °¡´ÉÇÏ´Ù. ¶Ç´Â »ý¼ºÇÒ ¶§ -o mountmpoint=/backup ¿É¼ÇÀ¸·Î ÁöÁ¤ÇÒ ¼ö ÀÖ´Ù.
(¡Ø zfs get all ¶Ç´Â zfs get mountpoint·Î ¼Ó¼º Á¤º¸¸¦ ¾òÀ» ¼ö ÀÖ´Ù.)
#
zfs set mountpoint=/backup data/backup
#
zfs list /backup
NAME USED AVAIL REFER MOUNTPOINT
data/backup 18K 31.3G 18K /backup
#
df -h -t zfs
Filesystem 1K-blocks Used Avail Capacity Mounted on
data 31G 0B 31G 0% /data
data/log 31G 0B 31G 0% /data/log
data/photo 31G 0B 31G 0% /data/photo
data/backup 31G 0B 31G 0% /backup
À§ÀÇ ÆÄƼ¼ÇÀ» º¸¸é ¿ë·®ÀÌ ¸ðµÎ 31GB·Î Ç¥½ÃµÇ¾ú´Ù. zfsÀÇ °¢ ÆÄƼ¼ÇÀÌ '½ºÅ丮Áö Ç®'ÀÇ ÃÖ´ë ¿ë·®±îÁö ÇÔ²² »ç¿ëÇϱ⠶§¹®ÀÌ´Ù. data/photo ÆÄƼ¼ÇÀº 5G¸¸ »ç¿ëÇ϶ó°í ÄõÅ͸¦ ÇÒ´çÇغ¸ÀÚ. ÀÌ ÄõÅÍ´Â Çã¿ëÄ¡¸¸Å ´Ã¸± ¼öµµ ÁÙÀÏ ¼öµµ ÀÖ´Ù. ¸®´ª½ºÀÇ LVMÀÌ È®ÀåÇÏ´Â °Í¸¸ °¡´É(lvextend)ÇÑ °Í°ú ºñ±³ÇÏ¸é »ó´çÈ÷ À¯¿¬ÇÑ ÀÚ¼¼¸¦ ÃëÇÏ°í ÀÖ´Ù.
#
zfs set quota=5g data/photo
#
zfs list data/photo
NAME USED AVAIL REFER MOUNTPOINT
data/photo 18K 5.00G 18K /data/photo
#
#
zfs set quota=3g data/photo
#
zfs list data/photo
NAME USED AVAIL REFER MOUNTPOINT
data/photo 18K 3.00G 18K /data/photo
#
#
df -h data/photo
Filesystem Size Used Avail Capacity Mounted on
data/photo 3.0G 128K 3.0G 0% /data/photo
¸¸¾à ´Ù¸¥ ÆÄƼ¼Ç¿¡¼ ¿ë·®À» »ç¿ëÇÏ°Ô µÇ¸é ±× ¾ç¸¸Å ´Ù¸¥ ÆÄƼ¼ÇÀº »ç¿ëÇÒ °ø°£ÀÌ ÁÙ°Ô µÈ´Ù. ¾Æ·¡¸¦ º¸¸é /data/log°¡ 11G¸¦ »ç¿ëÁßÀÌ´Ù. ±×·¡¼ ´Ù¸¥ ÆÄƼ¼ÇÀº 31GB-11GB »« ¿ë·®ÀÌ Àüü »çÀÌÁî·Î Ç¥ÇöµÈ´Ù.
#
df -h -t zfs
Filesystem Size Used Avail Capacity Mounted on
data 20G 0B 20G 0% /data
data/log 31G 11G 20G 35% /data/log
data/photo 3.0G 128K 3.0G 0% /data/photo
data/backup 20G 0B 20G 0% /backup
ZFS´Â ÀÚü¿¡ µ¥ÀÌÅÍ ¾ÈÁ¤¼ºÀ» ³ôÀ» ³ôÀÌ´Â mirror¿Í RAID-Z ±â´ÉÀ» Á¦°øÇÑ´Ù. mirror±â´ÉÀ¸·Î Ç®À» ¸¸µé¾î º¸ÀÚ.
#
zpool create backup mirror mfid1 mfid3
#
df -h -t zfs
Filesystem Size Used Avail Capacity Mounted on
backup 66G 0B 66G 0% /backup
µð½ºÅ©´Â SAS 73GBÂ¥¸®ÀÌ´Ù. ufs ¶Ç´Â zfs·Î 1°³ÀÇ ÆÄÀϽýºÅÛÀ» ¸¸µé¸é 66GB°¡ ³ª¿Â´Ù. 2°³ µð½ºÅ©Àε¥, 132GB°¡ ¾Æ´Ñ 66GB·Î Ç¥½ÃµÇ´Â °ÍÀº mirror·Î »ý¼ºµÇ¾úÀ½À» º¸¿©ÁØ´Ù. mirror·Î ¼³Á¤µÇ¾î ÀÖ´ÂÁö È®ÀÎÇÏ´Â ¹æ¹ýÀº µÚ¿¡¼ ´Ù½Ã ¾ê±âÇÏ°Ú´Ù.
2. zfs´Â ´ç½ÅÀÌ ÇÑ ÀÏÀ» ¸ðµÎ ¾Ë°í ÀÖ´Ù. (zfs history)
#
zpool history
History for 'data':
2009-02-16.18:32:06 zpool create data mfid0s1h
2009-02-16.18:33:23 zfs create data/backup
2009-02-16.18:33:31 zfs create data/log
2009-02-16.18:33:50 zfs create data/photo
2009-02-16.18:35:19 zfs set mountpoint=/backup data/backup
2009-02-16.18:41:17 zfs create -o mountpoint=/work data/work
2009-02-16.18:51:07 zfs set quota=5g data/photo
2009-02-16.19:00:09 zfs set quota=3g data/photo
2009-02-16.19:16:41 zfs set quota=5g data/photo
2009-02-16.19:21:36 zfs set quota=3g data/photo
2009-02-16.19:28:49 zfs destroy data/work
'data' Ç®¿¡ Àû¿ëµÈ ÀÛ¾÷ÀÌ ¸ðµÎ ³ª¿Ô´Ù.
3. »óÅ »ìÆ캸±â (zpool iostat, zpool status)
#
zpool iostat 2
capacity operations bandwidth
pool used avail read write read write
---------- ----- ----- ----- ----- ----- -----
data 11.4G 20.4G 8 63 881K 1.58M
data 11.6G 20.1G 0 1.75K 32.0K 128M
data 11.9G 19.9G 0 1.88K 64.0K 133M
data 12.1G 19.7G 0 2.09K 32.0K 128M
data 12.3G 19.4G 0 2.17K 64.0K 131M
data 12.6G 19.2G 0 2.20K 32.0K 137M
data 12.8G 18.9G 0 2.33K 32.0K 139M
data 12.9G 18.9G 610 1.49K 75.8M 77.8M
data 12.9G 18.9G 521 1.61K 65.0M 89.7M
data 12.9G 18.9G 615 1.35K 76.5M 71.2M
IO »óŸ¦ 2ÃÊ°£°ÝÀ¸·Î »ìÆ캻 °ÍÀÌ´Ù. ¸®´ª½º³ª FreeBSD¿¡¼ iostat¸¦ ÇغÃÀ» °ÍÀÌ´Ù. iostat´Â µð½ºÅ©º°·Î IO¸¦ º¸´Â °ÍÀ̸ç, zpool iostat´Â '½ºÅ丮Áö Ç®'º°·Î »ìÆ캸´Â °ÍÀÌ´Ù. 'data' Ç®ÀÇ ONLINE»óŸ¦ È®ÀÎÇÒ ¼ö ÀÖ´Ù.
#
zpool status
pool: data
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
data ONLINE 0 0 0
mfid0s1h ONLINE 0 0 0
´ÙÀ½Àº 'backup'Ç®ÀÌ mfid1, mfid3 2°³ disk¸¦ »ç¿ëÇÏ¿© mirrorµÇ¾î ÀÖ´Â °ÍÀ» º¼ ¼ö ÀÖ´Ù.
#
zpool status
pool: backup
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
backup ONLINE 0 0 0
mirror ONLINE 0 0 0
mfid1 ONLINE 0 0 0
mfid3 ONLINE 0 0 0
errors: No known data errors
4. ZFS Ç®°ú ÆÄÀϽýºÅÛ unmount & Áö¿ì±â (zpool destroy, zfs umount, zfs destroy)
ÆÄÀϽýºÅÛ¸¦ umountÇϱâ À§Çؼ´Â 'zfs umount ÆÄÀϽýºÅÛ' ÇüÅ·ΠÇϸç, ¿ÏÀü Á¦°Å´Â 'zfs destroy'·Î ÇÑ´Ù. ÆÄÀϽýºÅÛÀÌ »ç¿ëÁßÀÌÁö ¾ÊÀ¸¸é ¹Ù·Î unmount¿Í Á¦°Å°¡ °¡´ÉÇÏ´Ù.
#
cd /data/log
#
zfs umount data/log
cannot unmount '/data/log': Device busy
#
cd /
#
zfs umount data/log
#
zfs mount data/log
#
zfs destroy data/log
½ºÅ丮Áö Ç® Àüü¸¦ Á¦°ÅÇÒ ¶§µµ ¸¶Âù°¡Áö·Î zpool destroy·Î ÇÏ¸é µÈ´Ù.
#
zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
data 31.8G 10.9G 20.9G 34% ONLINE -
#
zpool destroy data
cannot unmount '/backup': Device busy
could not destroy 'data': could not unmount datasets
#
cd /
#
zpool destroy data
#
zpool list
no pools available
5. FreeBSD¿¡¼´Â ZFS¸¦ ¼ºñ½º¿¡ Àû¿ëÇÒ ¼ö ÀÖÀ»±î? (¼º´É ¹× ±âŸ »çÇ×)
ZFS´Â ÃÖ¼Ò 1GBÀÌ»óÀÇ ¸Þ¸ð¸®¸¦ ±ÇÀåÇÑ´Ù. ±×·¯³ª ZFS´Â ½ÇÁ¦ ¸¹Àº ¸Þ¸ð¸®¸¦ »ç¿ëÇÏ´Â °æ¿ì°¡ ÀÖ´Ù. ÆÄÀϽýºÅÛ ¼º´É üũ¸¦ ÇÏ´Â µ¿¾È
panic: kmem_malloc(16305): kmem_map too small: 332353536 total allocated °°Àº ¸Þ½ÃÁö¸¦ »Ñ¸®¸é¼ ¸î ¹ø ´Ù¿îµÇ¾ú´Ù. i386 ȯ°æ¿¡¼´Â kmem address space(vm.kmem_size_max)ÀÇ ÃÖ´ë°ªÀÌ 320MÀ¸·Î µÇ¾î ÀÖ´Ù. ±×·¯³ª ÀÌ ¼öÄ¡´Â ZFSÀ» »ç¿ëÇϱ⿡´Â ³·Àº ¼öÄ¡À̹ǷΠ±âº»°ªÀ» ±×´ë·Î »ç¿ëÇÒ °æ¿ì¿¡´Â Ä¿³Î ÆдÐÀÌ ¹ß»ýÇÒ ¼ö ÀÖ´Ù°í ÇÑ´Ù. ±×·¡¼ ³ªµµ ´Ù¿îÀÌ µÈ °ÍÀ̾ú´Ù. vm.kmem_size´Â read only°ªÀ̹ǷΠ/boot/loader.conf ¿¡ ´ÙÀ½ 2ÁÙÀ» Ãß°¡ÇÑ´Ù. ±×¸®°í ºÎÆÃÀ» ÇÏ°í, ÇÊ¿ä½Ã ÀÌ ¼öÄ¡´Â ´õ ´Ã¸®¸é µÈ´Ù.
vm.kmem_size="512M"
vm.kmem_size_max="512M"
[ ºÎÆà Àü ]
#
sysctl -a|grep kmem
vm.kmem_size_scale: 3
vm.kmem_size_max: 335544320
vm.kmem_size_min: 0
vm.kmem_size: 335544320
[ ºÎÆà ÈÄ ]
#
sysctl -a|grep kmem
vm.kmem_size_scale: 3
vm.kmem_size_max: 536870912
vm.kmem_size_min: 0
vm.kmem_size: 536870912
bonnie++·Î Sequential Output/Input/Create, Random, Random CreateÀÇ ¼º´É ºñ±³¸¦ Çß´Ù. ufs ÆÄÀϽýºÅÛ°ú ºñ±³ÇßÀ» ¶§ °¢ Ç׸ñº°·Î ´ë·« 2~5¹è ÀÌÇÏÀÇ ¸¸Á·½º·´Áö ¸øÇÑ ¼º´ÉÀÌ ³ª¿Ô´Ù. zfs ±âº» »ý¼º¿Ü¿¡ mirror·Î ÀÌ·ïÁø Ç®, raidz ·Î ÀÌ·ïÁø Ç®µµ ³·Àº ¼öÄ¡ÀÎ °ÍÀº ¸¶Âù°¡Áö¿´´Ù.
±×¸®°í, ºÎÆà ÈÄ ZFS¸¦ óÀ½ createÇÒ ¶§´Â ´ÙÀ½°ú °°Àº ¸Þ½ÃÁö°¡ ³ª¿Â´Ù.
This module (opensolaris) contains code covered by the
Common Development and Distribution License (CDDL)
see
http://opensolaris.org/os/licensing/opensolaris_license/
WARNING: ZFS is considered to be an experimental feature in FreeBSD.
ZFS filesystem version 6
ZFS storage pool version 6
'WARNING' ºÎºÐÀÌ º¸À̴°¡? FreeBSD¿¡¼´Â ½ÇÇèÀûÀÎ »óÅÂÀÌ°í, ¼º´É ¶ÇÇÑ »ó´çÈ÷ ³·À¸´Ï, Æí¸®ÇÔ°ú À¯¿¬ÇÔÀ» ³ôÀÌ »ê´Ù°í ÇÏ´õ¶ó°í ¼ºñ½º¿¡ Àû¿ëÇϱâ´Â ¹«¸®°¡ ÀÖ´Ù. ¾ÆÁ÷ FreeBSD¿¡¼´Â Àç¹Õ°Ô Áñ±â¸é µÈ´Ù. Áñ±â´Ù º¸¸é ¹Ì·¡¿¡ Àû¿ëÇصµ ±¦ÂúÀ» ¶§°¡ ¿À°ÚÁö...
6. Âü°í ÀÚ·á
* ZFS ½ÃÀÛÇϱâ
http://kr.sun.com/developers/solaris/techdocs/starting_zfs.html
* ZFS Tuning Guide
http://wiki.freebsd.org/ZFSTuningGuide
* FreeBSD 7.1 ´Þ¶óÁø °Í ¸î°¡Áö (2009.1.20, ±Û ÁÁÀºÁøÈ£)
http://coffeenix.net/bbs/viewtopic.php?t=3753
* FreeBSD 7.0 »ç¿ë±â (2008.3.7, ±Û ÁÁÀºÁøÈ£, ZFS »ç¿ë±â ÀϺΠÆ÷ÇÔ)
http://coffeenix.net/bbs/viewtopic.php?t=2892
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wgetÀ¸·Î ´Ù¸¥¼¹ö¿¡ÀÖ´Â µð·ºÅ丮¸¦ °¡Á®¿À·Á°íÇÕ´Ï´Ù.
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ƯÁ¤ ¾Èµå·ÎÀ̵å WebView ¹öÀü¿¡¼ SSL ¹®Á¦ (WebView ¹ö±×)
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DNS forwarder (Àü´ÞÀÚ) ¼¹ö¸¦ ÅëÇؼ Äõ¸®ÇÏ¸é ¿ª¹æÇâÀ» ¹Þ¾Æ¿ÀÁú ¸øÇÕ´Ï´Ù.
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(ÁÖ)ÈÄÀÌÁî ½Ã½ºÅÛ¿£Áö´Ï¾î (°æ·ÂÀÚ) ¸ðÁý
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KiCad EDA Suite project (Free/Libre/Open-Source EDA Suite) (CAD)
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QCad for Windows --- GNU GPL (Free Software)
The Hello World Collection
IPMI¸¦ È°¿ëÇÑ ¸®´ª½º ¼¹ö°ü¸®
DNS ¼³Á¤ °Ë»ç
nagiosgraph ¼³Ä¡ ¹æ¹ý
Slony-I ¼³Ä¡ ¹æ¹ý (postgresql replication tool)
Qmail±â¹ÝÀÇ Anti spam ½Ã½ºÅÛ ±¸ÃàÇϱâ
clusterssh
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ÁÁÀºÁøÈ£(truefeel)
, ¾ß¼ö(yasu), ¹ü³ÃÀÌ, sCag
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