暂存虚拟机中的逻辑卷的多路径

暂存虚拟机中的逻辑卷的多路径

如何在测试虚拟机时配置多路径(目的纯粹是学术性的)?

我新建了逻辑卷,修改multipath.conf如下:

defaults {
    udev_dir         /dev
    user_friendly_names  yes
}

blacklist {
}

blacklist_exceptions {
    device {
        vendor "VMware,"
        product "VMware Virtual S"
    }
}

multipath -v3说:

Apr 22 03:22:24 | sdb: rev = 1.0
Apr 22 03:22:24 | sdb: h:b:t:l = 2:0:1:0
Apr 22 03:22:24 | (null): (VMware,:VMware Virtual S) vendor/product whitelisted
Apr 22 03:22:24 | sdb: serial = 
Apr 22 03:22:24 | sdb: get_state
Apr 22 03:22:24 | sdb: path checker = directio (config file default)
Apr 22 03:22:24 | sdb: checker timeout = 180000 ms (sysfs setting)
Apr 22 03:22:24 | sdb: state = running
Apr 22 03:22:24 | directio: starting new request
Apr 22 03:22:24 | directio: io finished 4096/0
Apr 22 03:22:24 | sdb: state = 3
Apr 22 03:22:24 | sdb: getuid = /lib/udev/scsi_id --whitelisted --device=/dev/%n (config file default)
Apr 22 03:22:24 | /lib/udev/scsi_id exitted with 1
Apr 22 03:22:24 | error calling out /lib/udev/scsi_id --whitelisted --device=/dev/sdb
Apr 22 03:22:24 | sdb: state = running
Apr 22 03:22:24 | /lib/udev/scsi_id exitted with 1
Apr 22 03:22:24 | error calling out /lib/udev/scsi_id --whitelisted --device=/dev/sdb
Apr 22 03:22:24 | sdb: detect_prio = 1 (config file default)
Apr 22 03:22:24 | sdb: prio = const (config file default)
Apr 22 03:22:24 | sdb: const prio = 1
Apr 22 03:22:24 | dm-0: device node name blacklisted
Apr 22 03:22:24 | dm-1: device node name blacklisted
Apr 22 03:22:24 | dm-2: device node name blacklisted
===== paths list =====
uuid hcil    dev dev_t pri dm_st chk_st vend/prod/rev            dev_st 
     2:0:0:0 sda 8:0   1   undef ready  VMware,,VMware Virtual S running
     2:0:1:0 sdb 8:16  1   undef ready  VMware,,VMware Virtual S running
[root@localhost ~]# 

我想为 上的逻辑卷配置多路径/dev/sdb

我的黑名单是空的,为什么显示dm-0/1/2已列入黑名单?

另外,当我lib/udev/scsi_id --whitelisted --device=/dev手动运行时,我没有收到任何错误。不过,也没有输出或更改......

答案1

尝试这个

multipathd -k 
show config

在我的系统上,似乎忽略了一个空的黑名单,除了供应商列入黑名单的设备之外,它还包含以下 devnodes 模式:

devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
devnode "^hd[a-z]"
devnode "^dcssblk[0-9]*"

它匹配“dm-”

您可以尝试将“dm-1, dm-2 ..” devnodes 添加到黑名单例外中。我从来没有尝试过。例如,我不知道如果您对多路径 dm 文件设置异常会产生什么影响。

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