Re: [zfs-discuss] vfstab

2006-10-02 Thread Mark Shellenbaum 

Krzys wrote:

Hello all,

Is there any way to mount zfs file system from vfstab?

Thanks,

Chris




Set the mountpoint property for the file system to legacy and add the 
necessary info to the vfstab



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Re: [zfs-discuss] vfstab

2006-10-02 Thread Krzys 

Great, thanks :)

Chris

On Mon, 2 Oct 2006, Mark Shellenbaum wrote:


Krzys wrote:

Hello all,

Is there any way to mount zfs file system from vfstab?

Thanks,

Chris




Set the mountpoint property for the file system to legacy and add the 
necessary info to the vfstab




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Re: [zfs-discuss] Re: Re: please remove my ignorance of raiding andmirroring

2006-10-02 Thread Keith Clay 


On Oct 1, 2006, at 11:24 PM, Anton B. Rang wrote:

I was perhaps slightly hasty; RAID-5 is more efficient than a 2- 
disk mirror for reads, but RAID-10 (striping  mirroring) can match  
(or slightly exceed) its efficiency for small reads. In both cases,  
there is a single disk accessed.


With 4 disks, RAID-1+0 can service four independent reads  
concurrently, while RAID-5 can service up to four independent reads  
concurrently, but perhaps as few as 1 if all reads are directed to  
the same spindle. Under heavy loads, all spindles will generally be  
busy, so performance is similar.




Let me see if I understand.  If I have a RAID10 with 4 or more disk,  
then for a mailstore this would be the optimal solution.  I expect to  
have 6 or more disk in mirrors, so would that increase it's efficiency?


keith
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