[mythtvnz] File System for RAID-5

[James Booth]

On Monday 15 June 2009 14:40:46 Criggie wrote:
> Consider doing none of that.
>
> Consider a RAID1 for your system drives, and all the other drives in a
> mythtv storage group.  Programs will be written to individual drives, and
> if any one dies it will not take out the others.
>
> If you raid5, then you loose a drive worth of storage, and remember its
> only TV.  Not your critical personal data.
>
> I suggest jfs because it has predictable fsck/mount times.  Something like
> ext3 will someday jump at boot and demand a fsck taking hours and hours.
>
> james at booths.net.nz wrote:
> > Having just had a near-death experience with my non-RAID LVM system
> > for Myth, I am about to convert everything to a RAID-5 setup (software
> > RAID) with LVM on top. Before I go ahead does anyone have any
> > recommendations on best choice of file system to use, given that it
> > will be within LVM on RAID-5? I was going to go with XFS, but that
> > cannot be shrunk, which (as I have found) can be very irritating when
> > trying to reorganise your disks in an LVM. I know there are a bunch of
> > hot new file systems out now, but I? wary of trying something new in
> > an a setup like this.

I'm really not worried about TV recordings - it's my MASSIVE DVD library I am 
more concerned about. I find LVM really convenient because I can just keep 
adding on as the library grows (my RAID system will be 80% full from the 
start, so another 1.5TB drive coming up....)
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