[rescue] A Question about Snap Servers

bitrot bitrot at cat5.be
Sat Jul 31 14:44:49 CDT 2004


Jonathan C. Patschke wrote:
> On Sat, 31 Jul 2004, bitrot wrote:
> 
>> does anyone have a nice SIMPLE way of setting up raid 1
>> on solaris 9.
> 
> 
> 1) Create a tiny (10MB or 20MB) slice (I'll call this an mslice) on
>    each disk for the metadb and a big slice on each disk to hold your
>    data (I'll call this a dslice).
> 2) Do metadb -a -f mslice1 mslice2 mslice3   # You really need three tiny
>                                              # slices.
> 3) Then do metainit d1 1 1 dslice1
>            metainit d2 1 1 dslice2
> 
> 4) Then create the initial one-sided mirror:
>            metainit d10 -m dslice1
> 
> 5) Make your filesystem:
>            newfs /dev/rdsk/d10
> 
> 6) Initialize the other side of the mirror:
>            metattach d10 d2
> 
> You can now mount/use your filesystem.  It'll be slow until the sync
> finishes, but you're all set!  You can use metastat to check up on
> things.
> 
>> i think disksuite or meta* is just a complete pile of shit compared
>> to some other software raid solutions.
> 
> 
> If you want $otherOS, you know where you find it.  Sun's LVM works just
> fine for me.  Part of the reason that it's more complicated is that it's
> more resistant to infrastructure failure.  With three or more copies of
> the metadata, it's awfully hard for things to go south with a single
> controller failure.
> 
> Or you can always buy a license for Veritas Volume Manager.
> 
thanks that helped a lot

shorted my reading by 3 days i think

b.s.

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