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Emopig
Apprentice
Joined: 15 Mar 2006
Posts: 188
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 Posted: Wed Mar 28, 2007 10:51 pm Post subject: Any comments on these RAID plans? |
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Hello everyone,
I'm running out of disk space (who isn't  ) and i'm planning on putting together
a more flexible home storage config. I already have 2 active SATA drives, one
320 GB and the other 300 GB (sdb and sdc in my plan, respectively) and have just
purchased another 500 GB drive. (sda in my plan).
Below is my current plan utilising Linux software (MD) RAID (I am completely new to
RAID (but not to LVM which I love))
| Code: | 500G DRIVE (SATAII 7200RPM 16MB cache)
--------------------------------------
DEVICE | SIZE | CONTENT
------------------------
sda1 64M /boot
sda2 25G Windows Vista Business Edition (x64)
sda3 25G Windows XP Professional x64 Edition
(Will eventually be destroyed and consumed by the
preceeding partition or replaced by another OS)
sda4 ~450G Extended partition as below
--------------------------------------------------
sda5 20G Plain RAID-1 Mirror (no LVM)
mounted at / ext3 root volume
sda6 300G LVM managed physical volume on top of MD RAID-5
mounted at /home: 600 GB ext3 volume
sda7 ~130G LVM managed physical volume.
320G DRIVE (SATA I 7200 RPM 8MB cache)
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DEVICE | SIZE | CONTENT
------------------------
sdb1 20G RAID-1 Mirror (see sda5)
sdb2 300G LVM on RAID-5 (see sda6)
300G DRIVE (also SATA I 7200 RPM 8MB cache)
-------------------------------------------
DEVICE | SIZE | CONTENT
------------------------
sdc1 300G LVM on RAID-5 (see sda6) |
Based on the above plan does anyone have any comments?
Can anyone see a more efficient way to make use of all 3 drives?
Where should I dump some swap space?
Also could a few people confirm some assumptions for me:
- I should be able to boot off sda5 without an initrd image provided RAID support is compiled into the kernel and the partition types are set to "Linux RAID autodetect"
- I should get ~600GB of capacity in /home
- Mirroring is a better idea than striping for /
- Linux's MD Software RAID won't hose my data
I greatly appreciate any advice 
_________________
2.6.35 / Gnome 2.30
Athlon64 3500+ / 1.5 GB / Asus A8N VM CSM |
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IQgryn
l33t
Joined: 05 Sep 2005
Posts: 764
Location: WI, USA
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| Posted: Thu Mar 29, 2007 12:02 am Post subject: |
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| It would be good to have a bit of swap space on each drive. You'll probably want to set the pri=1 option on the new drive, and the pri=2 options on the older ones. |
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