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| Блок кода |
|---|
dvolume role:Primary
disk:UpToDate
pcmk-2 role:Secondary
peer-disk:UpToDate |
Настройка iSCSI-сервера
Настройка без ограничения доступа со стороны клиентов.
На первом узле pcmk-1, на котором DRBD = Primary:
Запустить оболочку по управлению iSCSI-объектами:
| Command |
|---|
sudo targetcli |
Вывод команды:
| Блок кода |
|---|
targetcli shell version 2.1.53
Copyright 2011-2013 by Datera, Inc and others.
For help on commands, type 'help'.
/> |
Далее команды выполняются внутри оболочки.
Зарегистрировать блочное DRBD-устройство /dev/drbd1 в качестве ... под именем, например, storage01:
Перейти в каталог /backstores/block:
| Command |
|---|
--- /> cd /backstores/block |
| Command |
|---|
> /backstores/block create storage01 /dev/drbd1 |
Вывод:
| Блок кода |
|---|
Created block storage object storage01 using /dev/drbd1. |
Создать iSCSI-target:
Перейти в каталог /iscsi:
| Command |
|---|
----- /backstores/block> cd /iscsi |
| Command |
|---|
> /iscsi create |
Вывод:
| Блок кода |
|---|
Created target iqn.2003-01.org.linux-iscsi.pcmk-1.x8664:sn.6425f3536d03.
Created TPG 1.
Global pref auto_add_default_portal=true
Created default portal listening on all IPs (0.0.0.0), port 3260. |
Создать LUN – блочное устройство, :
Перейти в каталог luns из /iscsi/<iSCSI-target>:
| Command |
|---|
>cd /iscsi/iqn.2003-01.org.linux-iscsi.pcmk-1.x8664:sn.56c2d5f061b1/tpg1/luns |
| Command |
|---|
/iscsi/iqn.20...d03/tpg1/luns> create /backstores/block/storage01 |
Вывод:
| Блок кода |
|---|
Created LUN 0. |
Проверить созданные устройства:
| Command |
|---|
...> ls / |
Вывод:
| Блок кода |
|---|
o- / ......................................................................................................................... [...]
o- backstores .............................................................................................................. [...]
| o- block .................................................................................................. [Storage Objects: 1]
| | o- storage01 ..................................................................... [/dev/drbd1 (20.0GiB) write-thru activated]
| | o- alua ................................................................................................... [ALUA Groups: 1]
| | o- default_tg_pt_gp ....................................................................... [ALUA state: Active/optimized]
| o- fileio ................................................................................................. [Storage Objects: 0]
| o- pscsi .................................................................................................. [Storage Objects: 0]
| o- ramdisk ................................................................................................ [Storage Objects: 0]
o- iscsi ............................................................................................................ [Targets: 1]
| o- iqn.2003-01.org.linux-iscsi.pcmk-1.x8664:sn.56c2d5f061b1 .......................................................... [TPGs: 1]
| o- tpg1 ............................................................................................... [no-gen-acls, no-auth]
| o- acls .......................................................................................................... [ACLs: 0]
| o- luns .......................................................................................................... [LUNs: 1]
| | o- lun0 ................................................................ [block/storage01 (/dev/drbd1) (default_tg_pt_gp)]
| o- portals .................................................................................................... [Portals: 1]
| o- 0.0.0.0:3260 ..................................................................................................... [OK]
o- loopback ......................................................................................................... [Targets: 0]
o- vhost ............................................................................................................ [Targets: 0]
o- xen-pvscsi |
> cd /
> saveconfig
> exit
---
Although by default targetcli saves the running configuration upon exit, a distribution-specific service must be enabled to restore the saved configuration on reboot. See distribution documentation for specifics, but for example:
$ sudo systemctl enable target.service
---
Отключение контроля доступа – из https://wiki.astralinux.ru/x/h8COEg
| Command |
|---|
/iscsi/iqn.2003-01.org.linux-iscsi.pcmk-1.x8664:sn.56c2d5f061b1/tpg1 set attribute generate_node_acls=1 |
!!!!! Переход Portal 0.0.0.0:3260
Pacemaker + DRBD
На узле, где DRBD = Primary :
...
| Блок кода |
|---|
* ClusterIP (ocf:heartbeat:IPaddr2): Started pcmk-1
* Clone Set: p_DRBD-clone [drbd_iscsi] (promotable):
* Promoted: [ pcmk-1 ]
* Unpromoted: [ pcmk-2 ] |
Pacemaker + iSCSI Target
Настройка без ограничения доступа со стороны клиентов.
На узле, где DRBD = Primary :
...
| Command |
|---|
sudo pcs resource create "p_iSCSI_lun1" ocf:heartbeat:iSCSILogicalUnit target_iqn="iqn.2025-08.iscsi.pcmk12" lun="1" path="/dev/drbd1" op monitor interval="10s" |
...
| Command |
|---|
sudo pcs resource status |
...