61 lines
1.6 KiB
Plaintext
61 lines
1.6 KiB
Plaintext
README.SLACKWARE
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First you need to add this to /etc/rc.d/rc.modules.local
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/sbin/modprobe -v dm-multipath
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Also add any modules that may be needed for any storage devices
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that may be not be configured up by udev, like eg. qla-2xxxx.
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To use multipath, you need to start the multipath daemon.
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The recommended way is to add the following to /etc/rc.d/rc.local
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if [ -x /etc/rc.d/rc.multipathd ]; then
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/etc/rc.d/rc.multipathd start
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fi
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After starting multipathd you can see the multipaths like this
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multipath -ll
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You have to have the paths connected and presented before
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seeing them with the above command. For some storage devices
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after presenting them to the host, a host reboot may be
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required for the devices and the paths to be show correctly.
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This also applies to any volume increase; a host reboot may
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be needed to pick up the new size. It seems to be depended
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on the storage in hand.
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To blackist any devices that you don't want to be handled by
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multipath like local hardware raid controllers, to your
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/etc/multipath.conf and entry like this
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blacklist {
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wwid 435456...
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}
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To setup aliases to multipath devices add entries like these
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to /etc/multipath.conf
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multipaths {
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multipath {
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wwid "534535..."
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alias "storage0"
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}
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}
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Use the following to reload the configuration
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multipath -r
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Then the device will be available under /dev/mapper/storage0
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You can create partitions on this like this
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gdisk /dev/mapper/storage0
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To make an xfs filesystem on the first partition
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mkfs.xfs /dev/mapper/storage0-part1
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See the manpages for more details.
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