Re: raid10??
Héctor González wrote:
> With mdadm you can make RAID10, is there a problem here I just don't see?
>
> my mdadm.conf has this for one server with 4 500GB disks, md0 is 1 TB.
>
> ARRAY /dev/md0 level=raid10 num-devices=4
> UUID=9fbd86dc:518e4bf3:c0ae5f04:5c65c500
>
>
> Roberto C. Sánchez wrote:
>> On Tue, Jan 29, 2008 at 05:23:25AM +0100, randall wrote:
>>
>>> i have just installed with the debian installer making 2 x raid1 and
>>> then glueing them together with LVM
>>> 256 MB /boot raid 1 (on all 4 disks)
>>> 10 GB /root raid1 + lvm
>>> 1 GB /swap raid1 + lvm
>>> 500 GB unused raid1 + lvm
>>>
>>> (i wasn't very sure what to do about the swap but i think this means
>>> slower but securer in a case of crashing)
>>>
>>> till so far the performance feels pretty snappy but i still have to do
>>> some benchmarking and remove a few random disks to see what happens.
>>>
>>> anybody ever reliably used a set up like this in production?
>>>
>>>
>> I run a similar setup on many production servers. On one, for example,
>> I have four disks. I create two RAID1 arrays, /dev/md0 and /dev/md1.
>> Then I create a LVM volume group, adding both /dev/md0 and /dev/md1 as
>> physical volumes. Then I create whatever logical volumes I want. It
>> works very well.
>>
>> Regards,
>>
>> -Roberto
>>
>>
>
>
no problem, just some time left to try out different options ;)
and i was just about to try that way, any pointers about the install you
are willing to share?
should be something as follows i figured, can you include /boot this way?
sfdisk -d /dev/hda | sfdisk /dev/hdb etc......
mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sd[ab]1
mdadm --create /dev/md1 --level=1 --raid-devices=2 /dev/sd[cd]1
mdadm --create /dev/md2 --level=0 --raid-devices=2 /dev/md[01]
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