X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;ds=sidebyside;f=local-lvm.adoc;h=45e875f88e8c1a4c8c89cd61d5b0f633242164aa;hb=a7d40e1f890c14383dddf97eda2e627db34dbac7;hp=999b7bc958abad7aacad881490aa00f491b47e0d;hpb=8b849dc378465dc19efca1d155477b45772191c5;p=pve-docs.git diff --git a/local-lvm.adoc b/local-lvm.adoc index 999b7bc..45e875f 100644 --- a/local-lvm.adoc +++ b/local-lvm.adoc @@ -1,12 +1,15 @@ Logical Volume Manager (LVM) ---------------------------- include::attributes.txt[] +ifdef::wiki[] +:pve-toplevel: +endif::wiki[] Most people install {pve} directly on a local disk. The {pve} installation CD offers several options for local disk management, and the current default setup uses LVM. The installer let you select a single disk for such setup, and uses that disk as physical volume for -the **V**olume **G**roup (VG) 'pve'. The following output is from a +the **V**olume **G**roup (VG) `pve`. The following output is from a test installation using a small 8GB disk: ---- @@ -30,7 +33,7 @@ VG: swap pve -wi-ao---- 896.00m ---- -root:: Formatted as 'ext4', and contains the operation system. +root:: Formatted as `ext4`, and contains the operation system. swap:: Swap partition @@ -38,3 +41,20 @@ data:: This volume uses LVM-thin, and is used to store VM images. LVM-thin is preferable for this task, because it offers efficient support for snapshots and clones. +Hardware +~~~~~~~~ + +We highly recommend to use a hardware RAID controller (with BBU) for +such setups. This increases performance, provides redundancy, and make +disk replacements easier (hot-pluggable). + +LVM itself does not need any special hardware, and memory requirements +are very low. + + +Bootloader +~~~~~~~~~~ + +We install two boot loaders by default. The first partition contains +the standard GRUB boot loader. The second partition is an **E**FI **S**ystem +**P**artition (ESP), which makes it possible to boot on EFI systems.