Nbd » История » Версия 8
Андрей Волков, 2017-12-07 01:17
| 1 | 5 | Андрей Волков | h1. 1. nbd (debian) |
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| 2 | 1 | Андрей Волков | |
| 3 | h2. На сервере |
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| 4 | |||
| 5 | 3 | Андрей Волков | *apt-get install qemu-utils* не ниже 2.1 |
| 6 | 1 | Андрей Волков | |
| 7 | 3 | Андрей Волков | *qemu-nbd -p 2000 -b 192.168.122.101 -f raw /dev/ssd6/hermes-storage &* |
| 8 | 1 | Андрей Волков | |
| 9 | h2. На клиенте |
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| 10 | |||
| 11 | *nbd-client 192.168.122.101 2000 /dev/nbd0* |
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| 12 | |||
| 13 | <pre> |
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| 14 | Negotiation: ..size = 716800MB |
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| 15 | bs=1024, sz=751619276800 bytes |
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| 16 | </pre> |
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| 17 | 2 | Андрей Волков | |
| 18 | *vi /etc/lvm/lvm.conf* |
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| 19 | |||
| 20 | <pre> |
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| 21 | filter = [ "a|^/dev/[hs]d[a-f][0-9]$|", "a|^/dev/nbd[0-9]+$|", "r/.*/" ] |
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| 22 | </pre> |
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| 23 | |||
| 24 | 1 | Андрей Волков | *pvcreate /dev/nbd0* |
| 25 | 5 | Андрей Волков | |
| 26 | h1. nbd (gentoo) |
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| 27 | |||
| 28 | h2. На сервере |
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| 29 | |||
| 30 | 6 | Андрей Волков | <pre> |
| 31 | lvcreate -L 210g -n temp-space vg-name |
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| 32 | qemu-nbd -p 51621 -b 172.31.53.254 -f raw /dev/vg-name/temp-space & |
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| 33 | </pre> |
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| 34 | |||
| 35 | h2. На клиенте |
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| 36 | |||
| 37 | <pre> |
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| 38 | modprobe nbd |
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| 39 | modprobe raid1 |
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| 40 | echo 1 > /sys/module/raid1/parameters/max_queued_requests |
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| 41 | 8 | Андрей Волков | # 30000 == 30Мбайт/сек ~ 300Мбит/сек |
| 42 | 6 | Андрей Волков | echo 30000 > /proc/sys/dev/raid/speed_limit_max |
| 43 | busybox nbd-client 172.31.53.254 51621 /dev/nbd0 |
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| 44 | # sed -i '/filter = /s:"r|/dev/nbd.*|", ::' /etc/lvm/lvm.conf |
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| 45 | pvcreate /dev/nbd0 |
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| 46 | vgextend data /dev/nbd0 |
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| 47 | lvconvert -m1 --type raid1 data/static /dev/nbd0 |
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| 48 | lvs |
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| 49 | </pre> |
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| 50 | |||
| 51 | <pre> |
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| 52 | LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert |
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| 53 | static data rwi-aor--- 200.00g 0.15 |
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| 54 | </pre> |
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| 55 | |||
| 56 | h2. После завершения синхронизации |
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| 57 | |||
| 58 | 7 | Андрей Волков | https://redmine.ekb-info.ru/projects/gnu-linux/wiki/Lvm-mirroring |