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Hi, |
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I'm quite confuse with lvm2 an clvm packages on gentoo amd64. |
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I have 2 xen-hosts domains0 using the same volume group (vg) including |
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logical volumes (lv) for the domainsU. The physical volume is on 2 SAN |
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(using raid1 lvm on logical volumes) with dual path. I use multipath- |
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tools to access the right path (access are active/enabled only). |
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So my domains0 have 4 access on storage system (2 on each volume, one |
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volume on each SAN). With multipath-tools I choose only one path per |
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volume. With LVM I have created some raid1 logical volumes on the 2 |
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san-volumes I see on my hosts domain0. Each xen domainsU has access to |
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one lvm logical volume, but I need to have these logical volumes ready |
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to use on the second xen-server domain0 (for failback). So I need to |
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use a locking system to use my lvm volume group on the 2 domain0, right? |
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If I want to install clvm, the package is masked and "flagged in read |
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me" as "redondant" with lvm2. In lvm2 I can't get "clvm" flag to work |
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(it is in parentheses). |
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My packages versions are the stables ones : |
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sys-fs/lvm2-2.02.36 |
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sys-fs/multipath-tools-0.4.7-r2 (0.4.8 doesn't work) |
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sys-kernel/xen-sources-2.6.18-r12 |
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|
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Do I need clvm? What must I do to having it working? |
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Another question. With recent versions of lvm2, I need to uninstall |
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device-mapper. How can I do it when multipath-tools depends on device- |
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mapper?? |
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Best regards |
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David |
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