{"id":19234,"date":"2016-07-20T06:11:40","date_gmt":"2016-07-19T22:11:40","guid":{"rendered":"https:\/\/2blog.ilc.edu.tw\/25793\/2016\/07\/20\/%e5%9c%a8-debian-linux-%e5%bb%ba%e7%ab%8b-raid-0\/"},"modified":"2021-03-18T17:24:46","modified_gmt":"2021-03-18T09:24:46","slug":"%e5%9c%a8-debian-linux-%e5%bb%ba%e7%ab%8b-raid-0","status":"publish","type":"post","link":"https:\/\/2blog.ilc.edu.tw\/25793\/2016\/07\/20\/%e5%9c%a8-debian-linux-%e5%bb%ba%e7%ab%8b-raid-0\/","title":{"rendered":"\u5728 Debian Linux \u5efa\u7acb RAID 0"},"content":{"rendered":"

\u53c3\u8003\u7db2\u9801\uff1a
Creating Software RAID0 (Stripe) on ‘Two Devices’ Using ‘mdadm’ Tool in Linux – Part 2<\/a>
Debian RAID-0 (\u7b49\u91cf\u6a21\u5f0f) | JR \u7684\u7db2\u8def\u65e5\u8a8c<\/a>
OS\uff1aDebian Linux 5.8.0 <\/span>
HDD\uff1a<\/span>
10G*1 Debian Linux System<\/span>
20G *4 (\/dev\/sdb,sdc,sdd,sde)<\/span> <\/p>\n

1. \u5b89\u88dd mdadm \u5957\u4ef6
# apt-get install mdadm<\/span>
\"\" <\/a>
\"\" <\/a>
[@more@]2. \u67e5\u770b\u76ee\u524d\u78c1\u789f\u72c0\u614b
# fdisk -l | grep ‘^Disk \/dev’<\/span>
Disk \/dev\/sdb: 20 GiB, 21474836480 bytes, 41943040 sectors<\/span>
Disk \/dev\/sdc: 20 GiB, 21474836480 bytes, 41943040 sectors<\/span>
Disk \/dev\/sdd: 20 GiB, 21474836480 bytes, 41943040 sectors<\/span>
Disk \/dev\/sda: 10 GiB, 10737418240 bytes, 20971520 sectors<\/span>
Disk \/dev\/sde: 20 GiB, 21474836480 bytes, 41943040 sectors<\/span> <\/p>\n

3. \u5efa\u7acb\u78c1\u789f\u5206\u5272\u5340
# fdisk \/dev\/sdb<\/span>
\"\" <\/a> <\/p>\n

\"\" <\/a>
\u4e0d\u4e00\u5b9a\u8981\u66f4\u6539\u6210 fd<\/span>
 \"\" <\/a>
\u91cd\u8907\u4e0a\u9762\u7684\u52d5\u4f5c\uff0c\u5b8c\u6210\u6240\u6709\u7684\u78c1\u789f
# fdisk \/dev\/sdc<\/span>
# fdisk \/dev\/sdd<\/span>
# fdisk \/dev\/sde<\/span> <\/p>\n

4. \u5efa\u7acb \/dev\/md0 \u78c1\u789f\u9663\u5217\u5206\u5272\u5340
# mdadm –create \/dev\/md0 –level=stripe –raid-devices=4 \/dev\/sd[b-e]1<\/span>
\u6216
# mdadm -C \/dev\/md0 -l raid0 -n 4 \/dev\/sd[b-e]1<\/span>
mdadm: Defaulting to version 1.2 metadata<\/span>
mdadm: array \/dev\/md0 started.<\/span> <\/p>\n

5. \u67e5\u770b\u5efa\u7f6e\u7d50\u679c
# cat \/proc\/mdstat<\/span>
Personalities : [raid0]<\/span>
md0 : active raid0 sde1[3] sdd1[2] sdc1[1] sdb1[0]<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0 83816448 blocks super 1.2 512k chunks<\/span> <\/p>\n

unused devices: <none><\/span> <\/p>\n

\/dev\/sdb1:<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Magic : a92b4efc<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Version : 1.2<\/span>
\u00a0\u00a0\u00a0 Feature Map : 0x0<\/span>
\u00a0\u00a0\u00a0\u00a0 Array UUID : 7d559d15:91cc1bec:54dcd941:8f10e5ff<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Name : debian:0\u00a0 (local to host debian)<\/span>
\u00a0 Creation Time : Mon Jun 27 19:09:38 2016<\/span>
\u00a0\u00a0\u00a0\u00a0 Raid Level : raid0<\/span>
\u00a0\u00a0 Raid Devices : 4<\/span> <\/p>\n

\u00a0Avail Dev Size : 41908224 (19.98 GiB 21.46 GB)<\/span>
\u00a0\u00a0\u00a0 Data Offset : 32768 sectors<\/span>
\u00a0\u00a0 Super Offset : 8 sectors<\/span>
\u00a0\u00a0 Unused Space : before=32680 sectors, after=0 sectors<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 State : clean<\/span>
\u00a0\u00a0\u00a0 Device UUID : b77c8a2f:aad8c146:6da755a5:6f3db3e3<\/span> <\/p>\n

\u00a0\u00a0\u00a0 Update Time : Mon Jun 27 19:09:38 2016<\/span>
\u00a0 Bad Block Log : 512 entries available at offset 72 sectors<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Checksum : 37037bb0 – correct<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Events : 0<\/span> <\/p>\n

\u00a0\u00a0\u00a0\u00a0 Chunk Size : 512K<\/span> <\/p>\n

\u00a0\u00a0 Device Role : Active device 0<\/span>
\u00a0\u00a0 Array State : AAAA (‘A’ == active, ‘.’ == missing, ‘R’ == replacing)<\/span> <\/p>\n

#\u00a0 fdisk -l | grep \/dev\/md0<\/span>
Disk \/dev\/md0: 80<\/span> GiB, 85828042752 bytes, 167632896 sectors<\/span> <\/p>\n

# mdadm –detail \/dev\/md0<\/span>
\/dev\/md0:<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Version : 1.2<\/span>
\u00a0 Creation Time : Mon Jun 27 19:09:38 2016<\/span>
\u00a0\u00a0\u00a0\u00a0 Raid Level : raid0<\/span>
\u00a0\u00a0\u00a0\u00a0 Array Size : 83816448 (79.93 GiB 85.83 GB)<\/span>
\u00a0\u00a0 Raid Devices : 4<\/span>
\u00a0 Total Devices : 4<\/span>
\u00a0\u00a0\u00a0 Persistence : Superblock is persistent<\/span> <\/p>\n

\u00a0\u00a0\u00a0 Update Time : Mon Jun 27 19:09:38 2016<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 State : clean<\/span>
\u00a0Active Devices : 4<\/span>
Working Devices : 4<\/span>
\u00a0Failed Devices : 0<\/span>
\u00a0 Spare Devices : 0<\/span> <\/p>\n

\u00a0\u00a0\u00a0\u00a0 Chunk Size : 512K<\/span> <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Name : debian:0\u00a0 (local to host debian)<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 UUID : 7d559d15:91cc1bec:54dcd941:8f10e5ff<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Events : 0<\/span> <\/p>\n

\u00a0\u00a0\u00a0 Number\u00a0\u00a0 Major\u00a0\u00a0 Minor\u00a0\u00a0 RaidDevice State<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 17\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdb1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 33\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdc1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 49\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdd1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 65\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sde1<\/span> <\/p>\n

6. \u9032\u884c RAID \u78c1\u789f\u5206\u5272
# fdisk \/dev\/md0<\/span>
\"\" <\/a> <\/p>\n

7. \u683c\u5f0f\u5316\u5206\u5272\u5340
# mkfs.ext4<\/span> \/dev\/md0p1<\/span>
mke2fs 1.42.12 (29-Aug-2014)<\/span>
Creating filesystem with 20953600 4k blocks and 5242880 inodes<\/span>
Filesystem UUID: a89c1629-75b4-4660-b5cd-cbcf72595fe8<\/span>
Superblock backups stored on blocks:<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4096000, 7962624, 11239424, 20480000<\/span> <\/p>\n

Allocating group tables: done<\/span>
Writing inode tables: done<\/span>
Creating journal (32768 blocks): done<\/span>
Writing superblocks and filesystem accounting information: done<\/span> <\/p>\n

8. \u5efa\u7acb\u639b\u8f09\u76ee\u9304\u4e26\u639b\u8f09
# mkdir \/mnt\/raid0<\/span>
# mount \/dev\/md0p1 \/mnt\/raid0<\/span>
# df -h<\/span>
Filesystem\u00a0\u00a0\u00a0\u00a0\u00a0 Size\u00a0 Used Avail Use% Mounted on<\/span>
\/dev\/sda1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 9.3G\u00a0 1.1G\u00a0 7.8G\u00a0 12% \/<\/span>
udev\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10M\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0 10M\u00a0\u00a0 0% \/dev<\/span>
tmpfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 400M\u00a0 5.9M\u00a0 394M\u00a0\u00a0 2% \/run<\/span>
tmpfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 999M\u00a0\u00a0\u00a0\u00a0 0\u00a0 999M\u00a0\u00a0 0% \/dev\/shm<\/span>
tmpfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5.0M\u00a0\u00a0\u00a0\u00a0 0\u00a0 5.0M\u00a0\u00a0 0% \/run\/lock<\/span>
tmpfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 999M\u00a0\u00a0\u00a0\u00a0 0\u00a0 999M\u00a0\u00a0 0% \/sys\/fs\/cgroup<\/span>
\/dev\/md0p1 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 79G\u00a0\u00a0 56M\u00a0\u00a0 75G\u00a0\u00a0 1% \/mnt\/raid0<\/span> <\/p>\n

9. \u67e5\u770b\u786c\u789f\u7684 UUID
# blkid | grep \/dev\/md0p1<\/span>
\/dev\/md0p1: UUID=”b57de29c-9210-48bc-9ba6-1f5224feb42f” TYPE=”ext4″<\/span> <\/p>\n

10. \u4fee\u6539 \/etc\/fstab<\/span>
# vim \/etc\/fstab<\/span>
\u52a0\u5165\u4e0b\u9762\u4e00\u884c
UUID=b57de29c-9210-48bc-9ba6-1f5224feb42f \/mnt\/raid0\u00a0\u00a0\u00a0\u00a0\u00a0 ext4\u00a0\u00a0\u00a0 errors=remount-ro 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0<\/span> <\/p>\n

11. \u7de8\u8f2f \/etc\/mdadm\/mdadm.conf<\/span>\u00a0 \u8a2d\u5b9a\u6a94
#\u00a0 mdadm -E -s -v >> \/etc\/mdadm\/mdadm.conf<\/span>
\u6216
#\u00a0 mdadm –detail –scan –verbose >> \/etc\/mdadm\/mdadm.conf<\/span>
# cat \/etc\/mdadm\/mdadm.conf<\/span>
ARRAY \/dev\/md\/0\u00a0 level=raid0 metadata=1.2 num-devices=4 UUID=7d559d15:91cc1bec:54dcd941:8f10e5ff name=debian:0<\/span>
\u00a0\u00a0 devices=\/dev\/sde1,\/dev\/sdd1,\/dev\/sdc1,\/dev\/sdb1<\/span> <\/p>\n

12. \u78c1\u789f\u5206\u5272\u8cc7\u8a0a
# fdisk -l | grep \/dev\/sd<\/span>
Disk \/dev\/sdb: 20 GiB, 21474836480 bytes, 41943040 sectors<\/span>
\/dev\/sdb1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2048 41943039 41940992\u00a0 20G 83 Linux<\/span><\/span>
Disk \/dev\/sda: 10 GiB, 10737418240 bytes, 20971520 sectors<\/span>
\/dev\/sda1\u00a0 *\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2048 20013055 20011008\u00a0 9.6G 83 Linux<\/span>
\/dev\/sda2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 20015102 20969471\u00a0\u00a0 954370\u00a0 466M\u00a0 5 Extended<\/span>
\/dev\/sda5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 20015104 20969471\u00a0\u00a0 954368\u00a0 466M 82 Linux swap \/ Solaris<\/span>
Disk \/dev\/sdc: 20 GiB, 21474836480 bytes, 41943040 sectors<\/span>
\/dev\/sdc1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2048 41943039 41940992\u00a0 20G 83 Linux<\/span><\/span>
Disk \/dev\/sdd: 20 GiB, 21474836480 bytes, 41943040 sectors<\/span>
\/dev\/sdd1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2048 41943039 41940992\u00a0 20G 83 Linux<\/span><\/span>
Disk \/dev\/sde: 20 GiB, 21474836480 bytes, 41943040 sectors<\/span>
\/dev\/sde1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2048 41943039 41940992\u00a0 20G 83 Linux<\/span><\/span><\/p>\n

13. \u6aa2\u67e5\u662f\u5426\u6709\u6b63\u78ba\u639b\u8f09
# df -h<\/span>
Filesystem\u00a0\u00a0\u00a0\u00a0\u00a0 Size\u00a0 Used Avail Use% Mounted on<\/span>
\/dev\/sda1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 9.3G\u00a0 1.1G\u00a0 7.8G\u00a0 12% \/<\/span>
udev\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10M\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0 10M\u00a0\u00a0 0% \/dev<\/span>
tmpfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 400M\u00a0 5.9M\u00a0 394M\u00a0\u00a0 2% \/run<\/span>
tmpfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 999M\u00a0\u00a0\u00a0\u00a0 0\u00a0 999M\u00a0\u00a0 0% \/dev\/shm<\/span>
tmpfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5.0M\u00a0\u00a0\u00a0\u00a0 0\u00a0 5.0M\u00a0\u00a0 0% \/run\/lock<\/span>
tmpfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 999M\u00a0\u00a0\u00a0\u00a0 0\u00a0 999M\u00a0\u00a0 0% \/sys\/fs\/cgroup<\/span>
\/dev\/md0p1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 79G\u00a0\u00a0 56M\u00a0\u00a0 75G\u00a0\u00a0 1% \/mnt\/raid0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\u53c3\u8003\u7db2\u9801\uff1a Creating Software RAID0 (Stripe) on ‘Two De … <\/p>\n

\u95b1\u8b80\u5168\u6587\u3008\u5728 Debian Linux \u5efa\u7acb RAID 0\u3009<\/span><\/a><\/p>\n","protected":false},"author":55,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[179,104],"tags":[],"class_list":["post-19234","post","type-post","status-publish","format-standard","hentry","category-c-87877","category-c-98643"],"meta_key":{"_pingme":["1"],"_encloseme":["1"],"lt_post_id":["648629"]},"_links":{"self":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19234"}],"collection":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/users\/55"}],"replies":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/comments?post=19234"}],"version-history":[{"count":1,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19234\/revisions"}],"predecessor-version":[{"id":20795,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19234\/revisions\/20795"}],"wp:attachment":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/media?parent=19234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/categories?post=19234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/tags?post=19234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}