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content:serverbasics [2023/07/10 16:24] – [Mountpoints] Danielcontent:serverbasics [2023/07/24 12:30] – [Raided LVM- Volumes] Daniel
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 </code> </code>
 +
 +The important part is metadata=1.0 - this format has especially designed to fit the needs of raid1 of fat/efi- systems.
  
  
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 LVM is a powerful partition-management-layer and should always be used, when there is some none low-end hardware present. If you can use the **KDE Partitioning- Tool** (which means having Plasma=KDE Desktop compatible support), the support is very inuitive and opens a lot of flexibility whne handling partitions, like adding more disk space or moving partitions, but also on console this offers good functionality. OpenSuSE offer to create LVM- Styled system setup in installation optionally (not by default). If you can: use it. LVM is a powerful partition-management-layer and should always be used, when there is some none low-end hardware present. If you can use the **KDE Partitioning- Tool** (which means having Plasma=KDE Desktop compatible support), the support is very inuitive and opens a lot of flexibility whne handling partitions, like adding more disk space or moving partitions, but also on console this offers good functionality. OpenSuSE offer to create LVM- Styled system setup in installation optionally (not by default). If you can: use it.
 +=== Raided LVM- Volumes ===
 +
 +Noadays, raid1 or raid5 for system without LVM is outdated. Those things are integrated in LVM - so use it!
 +
 +First, creat a volume group with two same size partitions on two discs, than create a raid1 on it (for example):
 +
 +<code>
 +vgcreate vgsystem /dev/sdX1 /dev/sdY1
 +lvcreate -m1 --type raid1 -l 100%FREE -n lvroot vgsystem
 +
 +</code>
 +
 +where 100%FREE means 100% of Free Space used…
 +
 +To check if raid1 works, use:
 +
 +<code>
 +lvs -a -o name,copy_percent,devices vg_xxx
 +
 +</code>
 +
 +If this has not worked, use:
 +
 +<code>
 +lvconvert --type raid1 -m1 vg_xxx/lvol1
 +
 +</code>
 +
 +Or - you can do raid5 with:
 +
 +<code>
 +lvcreate -n lvdata --type raid5 -l 100%FREE -i 2 vgdata
 +
 +</code>
 +
 +where i equals the number of devices with Data (not including parity- storage)
 +
 +
 === Useful Commands === === Useful Commands ===
  
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 BTRFs has a lot of Mountoptions and some here are really odd ones for every linux. I would suggest at least those: BTRFs has a lot of Mountoptions and some here are really odd ones for every linux. I would suggest at least those:
  
-For **Desktopusage**: compress=zstd:1,noatime,nodiratime,autodefrag+For **Desktopusage**: compress=zstd:3,noatime,nodiratime,autodefrag
  
 While autodefrag should not be necessary on ssd- harddiscs. While autodefrag should not be necessary on ssd- harddiscs.
  
 For **Databases** or files that need speed and __**are well backed up otherwise**__  : nodatacow,nodatasum,noatime,nodiratime For **Databases** or files that need speed and __**are well backed up otherwise**__  : nodatacow,nodatasum,noatime,nodiratime
 +
 +
 === Sources: === === Sources: ===
  
  • content/serverbasics.txt
  • Zuletzt geändert: 2024/04/20 13:02
  • von Daniel