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Hi all. I'm new in the list, this is my third message :) |
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First at all, I need to say sorry if my english is not perfect. I speak |
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spanish. I post here because gentoo-user-es it's middle dead, and it's a |
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great chance to practice my english :) Now, the problem. |
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|
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I'm going to get a new PC with a disc SSD 120GB and another HDD of 1TB. But |
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in a coming future, I want to add 2 or more disks SSD. |
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|
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Mi idea now, is: |
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|
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Disk HHD: /dev/sda |
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/dev/sda1 26GB |
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/dev/sda2 90GB |
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/dev/sda3 904GB |
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|
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Disk SSD: /dev/sdb |
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/dev/sdb1 26GB |
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/dev/sdb2 90GB |
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/dev/sdb3 4GB |
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|
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And use /dev/sdb3 as swap. (I will add more with another SSD in future) |
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/dev/sda3 mounted in /home/user/data (to save data unused) |
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|
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And a RAID 1 with: |
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md0: sda1+sdb1 / |
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md1: sda2+sdb2 /home |
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|
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(sda1 and sda2 will be made with the flag: write-mostly. This is useful for |
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disks slower). |
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In a future, I'm going to add more SSD's on this RAID. My idea is the |
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fastest I/O. |
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|
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Now. My problem/question is: |
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Following the gentoo's |
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doc<http://www.gentoo.org/doc/es/gentoo-x86+raid+lvm2-quickinstall.xml>, |
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it says I need to put the flag --metadata=0.9 on the RAID. My question is |
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¿This will make get off the performance?. |
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|
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I only found this |
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document<https://raid.wiki.kernel.org/index.php/RAID_superblock_formats#The_version-0.90_Superblock_Format>. |
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This says the difference, but nothing about performance and |
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advantages/disadvantages. |
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|
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Another question is, ¿GRUB2 still unsupporting metadata 1.2? |
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|
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In case that metadata get off performance, and GRUB2 doesn't support this. |
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¿Anyone knows how can I fix this to use metadata 1.2? |
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|
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I don't partitioned more, because I saw this unnecessary. I just need to |
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separate /home in case I need to format the system. But if I need to |
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separate /boot to make it work, I don't have problems doing that. |
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|
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But of course, /boot also as RAID... |
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|
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¿Somebody have any ideas to make it work? |
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|
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Thank you all. Bytes! ;) |